/*
* Read the previous FFD simulation data in a format of standard output
*
* @param para Pointer to FFD parameters
* @param var Pointer to FFD simulation variables
*
* @return 0 if no error occurred
*/
int read_ffd_data(PARA_DATA *para, REAL **var) {
int i,j, k;
int imax = para->geom->imax;
int jmax = para->geom->jmax;
int kmax = para->geom->kmax;
int IMAX = imax+2, IJMAX = (imax+2)*(jmax+2);
char string[400];
if((file_old_ffd=fopen(para->inpu->old_ffd_file_name,"r"))==NULL) {
sprintf(msg, "ffd_data_reader.c: Can not open file \"%s\".",
para->inpu->old_ffd_file_name);
ffd_log(msg, FFD_ERROR);
return 1;
}
FOR_ALL_CELL
fgets(string, 400, file_old_ffd);
sscanf(string,"%lf%lf%lf%lf%lf%lf", &var[VX][IX(i,j,k)], &var[VY][IX(i,j,k)],
&var[VZ][IX(i,j,k)], &var[TEMP][IX(i,j,k)],
&var[Xi1][IX(i,j,k)], &var[IP][IX(i,j,k)]);
END_FOR
fclose(file_old_ffd);
sprintf(msg, "read_ffd_data(): Read previous ffd simulation data file %s.",
para->inpu->old_ffd_file_name);
ffd_log(msg, FFD_NORMAL);
return 0;
} /* End of read_ffd_data()*/
///////////////////////////////////////////////////////////////////////////////
/// Compare the area of boundaries
///
///\param para Pointer to FFD parameters
///\param var Pointer to the FFD simulaiton variables
///\param BINDEX Pointer to boundary index
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int compare_boundary_area(PARA_DATA *para, REAL **var, int **BINDEX) {
int i, j;
REAL *A0 = para->bc->AWall, *A1 = para->cosim->para->are;
ffd_log("compare_boundary_area(): "
"Start to compare the area of solid surfaces.",
FFD_NORMAL);
for(i=0; i<para->bc->nb_wall; i++) {
j = para->bc->wallId[i];
if(fabs(A0[i]-A1[j])<SMALL) {
sprintf(msg, "\t%s has the same area of %f[m2]",
para->bc->wallName[i], A0[i]);
ffd_log(msg, FFD_NORMAL);
}
else {
sprintf(msg,
"compare_boundary_area(): Area of surface %s are different: "
"Modelica (%f[m2]) and FFD (%f[m2])",
para->bc->wallName[i], A1[j], A0[i]);
ffd_log(msg, FFD_ERROR);
return 1;
}
}
return 0;
} // End of compare_boundary_area()
///////////////////////////////////////////////////////////////////////////////
/// TDMA solver for 1D array
///
///\param ap Pointer to coefficient for center
///\param ae Pointer to coefficient for east
///\param aw Pointer to coefficient for west
///\param b Pointer to b
///\param psi Pointer to variable
///\param LENGTH Length of the array
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int TDMA_1D(REAL *ap, REAL *ae, REAL *aw, REAL *b, REAL *psi,
int LENGTH) {
REAL *P, *Q;
int i;
P = (REAL *)malloc(LENGTH * sizeof(REAL));
if(P==NULL) {
ffd_log("TDMA_1D(): Could not allocate memory for P.", FFD_ERROR);
return 1;
}
Q = (REAL *)malloc(LENGTH * sizeof(REAL));
if(Q==NULL) {
ffd_log("TDMA_1D(): Could not allocate memory for Q.", FFD_ERROR);
return 1;
}
for(i=1; i<=LENGTH-1; i++) {
P[i] = ae[i] / (ap[i] - aw[i]*P[i-1]);
Q[i] = (b[i] + aw[i]*Q[i-1]) / (ap[i] - aw[i]*P[i-1]);
}
for(i=LENGTH-1; i>=1; i--)
psi[i] = P[i]*psi[i+1] + Q[i];
free(P);
free(Q);
return 0;
} /* end of TDMA_1D() */
///////////////////////////////////////////////////////////////////////////////
/// Read the file to identify the block cells in space
///
/// The default name used by SCi is zeroone.dat. The user can change the file
/// name and give the new name in the FFD input file *.ffd.
///
///\param para Pointer to FFD parameters
///\param var Pointer to FFD simulation variables
///\param BINDEX Pointer to boundary index
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int read_sci_zeroone(PARA_DATA *para, REAL **var, int **BINDEX) {
int i, j, k;
int delcount=0;
int mark;
int imax = para->geom->imax;
int jmax = para->geom->jmax;
int kmax = para->geom->kmax;
int index = para->geom->index;
int IMAX = imax+2, IJMAX = (imax+2)*(jmax+2);
REAL *flagp = var[FLAGP];
if( (file_params=fopen(para->inpu->block_file_name,"r")) == NULL ) {
sprintf(msg, "read_sci_input():Could not open file \"%s\"!\n",
para->inpu->block_file_name);
ffd_log(msg, FFD_ERROR);
return 1;
}
sprintf(msg, "read_sci_input(): start to read block information from \"%s\".",
para->inpu->block_file_name);
ffd_log(msg, FFD_NORMAL);
for(k=1;k<=kmax;k++)
for(j=1;j<=jmax;j++)
for(i=1;i<=imax;i++) {
fscanf(file_params,"%d" ,&mark);
// mark=1 block cell;mark=0 fluid cell
if(mark==1) {
flagp[IX(i,j,k)] = SOLID;
BINDEX[0][index] = i;
BINDEX[1][index] = j;
BINDEX[2][index] = k;
index++;
}
delcount++;
if(delcount==25) {
fscanf(file_params,"\n");
delcount=0;
}
}
fclose(file_params);
para->geom->index=index;
sprintf(msg, "read_sci_input(): end of reading zeroone.dat.");
ffd_log(msg, FFD_NORMAL);
return 0;
} // End of read_sci_zeroone()
///////////////////////////////////////////////////////////////////////////////
/// Allcoate memory for variables
///
///\param para Pointer to FFD parameters
///
///\return No return needed
///////////////////////////////////////////////////////////////////////////////
int allocate_memory (PARA_DATA *para) {
int nb_var, i;
int size = (geom.imax+2) * (geom.jmax+2) * (geom.kmax+2);
/****************************************************************************
| Allocate memory for variables
****************************************************************************/
nb_var = C2BC+1;
var = (REAL **) malloc ( nb_var*sizeof(REAL*) );
if(var==NULL) {
ffd_log("allocate_memory(): Could not allocate memory for var.",
FFD_ERROR);
return 1;
}
for(i=0; i<nb_var; i++) {
var[i] = (REAL *) calloc(size, sizeof(REAL));
if(var[i]==NULL) {
sprintf(msg,
"allocate_memory(): Could not allocate memory for var[%d]", i);
ffd_log(msg, FFD_ERROR);
return 1;
}
}
/****************************************************************************
| Allocate memory for boundary cells
| BINDEX[0]: i of global coordinate in IX(i,j,k)
| BINDEX[1]: j of global coordinate in IX(i,j,k)
| BINDEX[2]: k of global coordinate in IX(i,j,k)
| BINDEX[3]: Fixed temperature or fixed heat flux
| BINDEX[4]: Boundary ID to identify which boundary it belongs to
****************************************************************************/
BINDEX = (int **)malloc(5*sizeof(int*));
if(BINDEX==NULL) {
ffd_log("allocate_memory(): Could not allocate memory for BINDEX.",
FFD_ERROR);
return 1;
}
for(i=0; i<5; i++) {
BINDEX[i] = (int *) malloc(size*sizeof(int));
if(BINDEX[i]==NULL) {
sprintf(msg,
"allocate_memory(): Could not allocate memory for BINDEX[%d]", i);
ffd_log(msg, FFD_ERROR);
return 1;
}
}
return 0;
} // End of allocate_memory()
///////////////////////////////////////////////////////////////////////////////
/// Calculate convective heat transfer coefficient divided by
///
///\param para Pointer to FFD parameters
///\param var Pointer to FFD simulation variables
///\param i I-index of the cell
///\param j J-index of the cell
///\param k K-index of the cell
///\param D distance from the cell center to the wall
///
///\return Mass flow difference divided by the outflow area
///////////////////////////////////////////////////////////////////////////////
REAL h_coef(PARA_DATA *para, REAL **var, int i, int j, int k, REAL D) {
REAL h, kapa;
REAL nu = para->prob->nu;
switch(para->prob->tur_model) {
case LAM:
kapa = nu;
break;
case CONSTANT:
kapa = (REAL)101.0 * nu;
break;
case CHEN:
kapa = nu + nu_t_chen_zero_equ(para, var, i, j, k);
break;
default:
sprintf(msg, "h_coef(): Value (%d) for para->prob->tur_model"
"was not correct.", para->prob->tur_model);
ffd_log(msg, FFD_ERROR);
}
h = para->prob->Cp * para->prob->rho * para->prob->alpha * kapa
/ (nu * D);
return h;
} // End of h_coef()
///////////////////////////////////////////////////////////////////////////////
/// Solver for equations
///
///\param para Pointer to FFD parameters
///\param var Pointer to FFD simulation variables
///\param var_type Variable type
///\param Pointer to variable
///
///\return 0 if not error occurred
///////////////////////////////////////////////////////////////////////////////
int equ_solver(PARA_DATA *para, REAL **var, int var_type, REAL *psi) {
REAL *flagp = var[FLAGP], *flagu = var[FLAGU],
*flagv = var[FLAGV], *flagw = var[FLAGW];
int flag = 0;
switch(var_type) {
case VX:
Gauss_Seidel(para, var, flagu, psi);
break;
case VY:
Gauss_Seidel(para, var, flagv, psi);
break;
case VZ:
Gauss_Seidel(para, var, flagw, psi);
break;
case TEMP:
case IP:
case Xi1:
case Xi2:
case C1:
case C2:
Gauss_Seidel(para, var, flagp, psi);
break;
default:
sprintf(msg, "equ_solver(): Solver for variable type %d is not defined.",
var_type);
ffd_log(msg, FFD_ERROR);
flag = 1;
break;
}
return flag;
}// end of equ_solver
/******************************************************************************
Write data that will be read by other program
******************************************************************************/
int write_cosimulation_data(PARA_DATA *para, REAL **var)
{
int i;
int imax = para->geom->imax, jmax = para->geom->jmax;
int kmax = para->geom->kmax;
int IMAX = imax+2, IJMAX = (imax+2)*(jmax+2);
ffdSharedData data;
/*--------------------------------------------------------------------------
| The following code is to be modified by the users
--------------------------------------------------------------------------*/
for(i=0; i<3; i++)
data.number[i] = var[VX][IX(1,1,1)] + i;
data.status = 1;
data.t = para->mytime->t;
strcpy(data.message, "This is FFD data\0");
if(write_to_shared_memory(&data))
exit(1);
else
ffd_log("cosimulation.c: write data to shared memory.", FFD_NORMAL);
return 0;
} // End of write_cosimulation_data()
/******************************************************************************
Read the data send from the other program
******************************************************************************/
int read_cosimulation_data(PARA_DATA *para, REAL **var)
{
int j, k;
int imax = para->geom->imax, jmax = para->geom->jmax;
int kmax = para->geom->kmax;
int IMAX = imax+2, IJMAX = (imax+2)*(jmax+2);
otherSharedData data;
REAL feak[1];
if(read_from_shared_memory(&data))
exit(1);
else
ffd_log("cosimulation.c: read data from shared memory.", FFD_NORMAL);
feak[0] = data.arr[0];
/*--------------------------------------------------------------------------
| The following code is to be modified by the users
--------------------------------------------------------------------------*/
for(j=0; j<=jmax+1; j++)
for(k=0; k<=kmax+1; k++)
var[TEMPBC][IX(imax+1,j,k)]= feak[0];
printf("\ntime=%f, status=%d\n", data.t, data.status);
printf("arr[0]=%f, arr[1]=%f, arr[2]=%f\n", data.arr[0], data.arr[1], data.arr[2]);
//printf("message=%s\n",data.message);
return 0;
} // End of read_cosimulation_data()
///////////////////////////////////////////////////////////////////////////////
/// Initialize the parameters
///
///\param para Pointer to FFD parameters
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int initialize(PARA_DATA *para) {
// Define the default value for parameter
set_default_parameter(para);
// Overwrite the default values using user defined values
if(read_parameter(para)) {
ffd_log("initialize(): Failed to read paramter file.", FFD_ERROR);
return 1;
}
/*---------------------------------------------------------------------------
| Output the help information
---------------------------------------------------------------------------*/
if(para->outp->version==DEMO) {
printf("\n\nHow to use this demo:\n\n" );
printf("\t Switch Windows: \n");
printf("\t\tVelocity: key '1'\n");
printf("\t\tContaminant: key '2'\n");
printf("\t\tTemperature: key '3'\n");
printf("\t Add densities with the right mouse button\n");
printf("\t Add velocities with the left mouse button\n");
printf("\t Increase the inlet velocity with 'F' or 'f' key\n");
printf("\t Decrease the inlet velocity with 'S' or 's' key\n");
printf("\t Increase the BC temperature with 'H' or 'h' key\n");
printf("\t Decrease the BC temperature with 'C' or 'c' key\n" );
printf("\t Clear the simulation by pressing the '0' key\n" );
printf("\t Quit by pressing the 'q' key\n" );
}
return 0;
} // End of initialize( )
///////////////////////////////////////////////////////////////////////////////
/// Calculate the velocity
///
///\param para Pointer to FFD parameters
///\param var Pointer to FFD simulation variables
///\param BINDEX Pointer to boundary index
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int vel_step(PARA_DATA *para, REAL **var,int **BINDEX) {
REAL *u = var[VX], *v = var[VY], *w = var[VZ];
REAL *u0 = var[TMP1], *v0 = var[TMP2], *w0 = var[TMP3];
int flag = 0;
flag = advect(para, var, VX, 0, u0, u, BINDEX);
if(flag!=0) {
ffd_log("vel_step(): Could not advect for velocity X.", FFD_ERROR);
return flag;
}
flag = advect(para, var, VY, 0, v0, v, BINDEX);
if(flag!=0) {
ffd_log("vel_step(): Could not advect for velocity Y.", FFD_ERROR);
return flag;
}
flag = advect(para, var, VZ, 0, w0, w, BINDEX);
if(flag!=0) {
ffd_log("vel_step(): Could not advect for velocity Z.", FFD_ERROR);
return flag;
}
flag = diffusion(para, var, VX, 0, u, u0, BINDEX);
if(flag!=0) {
ffd_log("vel_step(): Could not diffuse velocity X.", FFD_ERROR);
return flag;
}
flag = diffusion(para, var, VY, 0, v, v0, BINDEX);
if(flag!=0) {
ffd_log("vel_step(): Could not diffuse velocity Y.", FFD_ERROR);
return flag;
}
flag = diffusion(para, var, VZ, 0, w, w0, BINDEX);
if(flag!=0) {
ffd_log("vel_step(): Could not diffuse velocity Z.", FFD_ERROR);
return flag;
}
flag = project(para, var,BINDEX);
if(flag!=0) {
ffd_log("vel_step(): Could not project velocity.", FFD_ERROR);
return flag;
}
if(para->bc->nb_outlet!=0) flag = mass_conservation(para, var,BINDEX);
if(flag!=0) {
ffd_log("vel_step(): Could not conduct mass conservation correction.",
FFD_ERROR);
return flag;
}
return flag;
} // End of vel_step( )
///////////////////////////////////////////////////////////////////////////////
/// Write the instantaneous value of variables in Tecplot format
///
///\param para Pointer to FFD parameters
///\param var Pointer to FFD simulation variables
///\param name Pointer to the filename
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int write_unsteady(PARA_DATA *para, REAL **var, char *name){
int i,j,k;
int imax=para->geom->imax, jmax=para->geom->jmax;
int kmax = para->geom->kmax;
int IMAX = imax+2, IJMAX = (imax+2)*(jmax+2);
REAL *u = var[VX], *v = var[VY], *w = var[VZ], *p = var[IP];
REAL *d = var[TRACE];
REAL *T = var[TEMP];
char *filename;
FILE *datafile;
/****************************************************************************
| Allocate memory for filename
| Length of filename should be sizeof(ActualName) + 1
| Using sizeof(ActualName) will cause memory fault in free(filename)
****************************************************************************/
filename = (char *) malloc((strlen(name)+5)*sizeof(char));
if(filename==NULL) {
ffd_log("write_unsteady(): Failed to allocate memory for file name",
FFD_ERROR);
return 1;
}
strcpy(filename, name);
strcat(filename, ".plt");
// Open output file
if((datafile=fopen(filename,"w"))==NULL) {
sprintf(msg, "write_unsteady(): Failed to open file %s.", filename);
ffd_log(msg, FFD_ERROR);
return 1;
}
FOR_ALL_CELL
fprintf( datafile, "%f\t%f\t%f\t",u[IX(i,j,k)], v[IX(i,j,k)], w[IX(i,j,k)]);
fprintf( datafile, "%f\t%f\t%f\n",T[IX(i,j,k)], d[IX(i,j,k)], p[IX(i,j,k)]);
END_FOR
sprintf(msg, "write_unsteady(): Wrote the unsteady data file %s.", filename);
ffd_log(msg, FFD_NORMAL);
free(filename);
fclose(datafile);
return 0;
} //write_unsteady()
///////////////////////////////////////////////////////////////////////////////
/// Calculate the temperature
///
///\param para Pointer to FFD parameters
///\param var Pointer to FFD simulation variables
///\param BINDEX Pointer to boundary index
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int temp_step(PARA_DATA *para, REAL **var, int **BINDEX) {
REAL *T = var[TEMP], *T0 = var[TMP1];
int flag = 0;
flag = advect(para, var, TEMP, 0, T0, T, BINDEX);
if(flag!=0) {
ffd_log("temp_step(): Could not advect temperature.", FFD_ERROR);
return flag;
}
flag = diffusion(para, var, TEMP, 0, T, T0, BINDEX);
if(flag!=0) {
ffd_log("temp_step(): Could not diffuse temperature.", FFD_ERROR);
return flag;
}
return flag;
} // End of temp_step( )
///////////////////////////////////////////////////////////////////////////////
/// Entrance of calculating diffusion equation
///
///\param para Pointer to FFD parameters
///\param var Pointer to FFD simulation variables
///\param var_type Type of variable
///\param index Index of trace substance or species
///\param psi Pointer to the variable at current time step
///\param psi0 Pointer to the variable at previous time step
///\param BINDEX Pointer to boundary index
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int diffusion(PARA_DATA *para, REAL **var, int var_type, int index,
REAL *psi, REAL *psi0, int **BINDEX) {
int flag = 0;
/****************************************************************************
| Define the coeffcients for diffusion euqation
****************************************************************************/
flag = coef_diff(para, var, psi, psi0, var_type, index, BINDEX);
if(flag!=0) {
ffd_log("diffsuion(): Could not calculate coefficents for "
"diffusion equation.", FFD_ERROR);
return flag;
}
// Solve the equations
equ_solver(para, var, var_type, psi);
// Define B.C.
set_bnd(para, var, var_type, index, psi, BINDEX);
// Check residual
if(para->solv->check_residual==1) {
switch(var_type) {
case VX:
sprintf(msg, "diffusion(): Residual of VX is %f",
check_residual(para, var, psi));
ffd_log(msg, FFD_NORMAL);
break;
case VY:
sprintf(msg, "diffusion(): Residual of VY is %f",
check_residual(para, var, psi));
ffd_log(msg, FFD_NORMAL);
break;
case VZ:
sprintf(msg, "diffusion(): Residual of VZ is %f",
check_residual(para, var, psi));
ffd_log(msg, FFD_NORMAL);
break;
case TEMP:
sprintf(msg, "diffusion(): Residual of T is %f",
check_residual(para, var, psi));
ffd_log(msg, FFD_NORMAL);
break;
case TRACE:
sprintf(msg, "diffusion(): Residual of Trace %d is %f",
index, check_residual(para, var, psi));
ffd_log(msg, FFD_NORMAL);
break;
default:
sprintf(msg, "diffusion(): No sovler for varibale type %d",
var_type);
ffd_log(msg, FFD_ERROR);
flag = 1;
}
}
return flag;
} // End of diffusion( )
///////////////////////////////////////////////////////////////////////////////
/// Calculate the contaminant concentration
///
///\param para Pointer to FFD parameters
///\param var Pointer to FFD simulation variables
///\param BINDEX Pointer to boundary index
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int den_step(PARA_DATA *para, REAL **var, int **BINDEX) {
REAL *den, *den0 = var[TMP1];
int i, flag = 0;
/****************************************************************************
| Solve the species
****************************************************************************/
for(i=0; i<para->bc->nb_Xi; i++) {
if(para->outp->version==DEBUG) {
sprintf(msg, "den_step(): start to solve Xi%d", i+1);
ffd_log(msg, FFD_NORMAL);
}
den = var[Xi1+i];
flag = advect(para, var, Xi1+i, i, den0, den, BINDEX);
if(flag!=0) {
sprintf(msg, "den_step(): Could not advect species %d", i+1);
ffd_log(msg, FFD_ERROR);
return flag;
}
flag = diffusion(para, var, Xi1+i, i, den, den0, BINDEX);
if(flag!=0) {
sprintf(msg, "den_step(): Could not diffuse species %d", i+1);
ffd_log(msg, FFD_ERROR);
return flag;
}
}
/****************************************************************************
| Solve the trace substances
****************************************************************************/
for(i=0; i<para->bc->nb_C; i++) {
if(para->outp->version==DEBUG) {
sprintf(msg, "den_step(): start to solve C%d", i+1);
ffd_log(msg, FFD_NORMAL);
}
den = var[C1+i];
flag = advect(para, var, Xi1, i, den0, den, BINDEX);
if(flag!=0) {
sprintf(msg, "den_step(): Could not advect trace substance %d", i+1);
ffd_log(msg, FFD_ERROR);
return flag;
}
flag = diffusion(para, var, Xi1, i, den, den0, BINDEX);
if(flag!=0) {
sprintf(msg, "den_step(): Could not diffuse trace substance %d", i+1);
ffd_log(msg, FFD_ERROR);
return flag;
}
}
return flag;
} // End of den_step( )
///////////////////////////////////////////////////////////////////////////////
/// Entrance of interpolation
///
///\param para Pointer to FFD parameters
///\param d0 Pointer to the variable for interpolation
///\param p I-index of the control volume
///\param q J-index of the control volume
///\param r K-index of the control volume
///\param x_1 Reciprocal of X-length
///\param y_1 Reciprocal of Y-length
///\param z_1 Reciprocal of Z-length
///
///\return Interpolated value
///////////////////////////////////////////////////////////////////////////////
REAL interpolation(PARA_DATA *para, REAL *d0, REAL x_1, REAL y_1, REAL z_1,
int p, int q, int r) {
int imax = para->geom->imax, jmax = para->geom->jmax;
int IMAX = imax+2, IJMAX = (imax+2)*(jmax+2);
switch(para->solv->interpolation) {
case BILINEAR:
return interpolation_bilinear(x_1, y_1, z_1,
d0[IX(p,q,r)], d0[IX(p,q+1,r)], d0[IX(p+1,q,r)], d0[IX(p+1,q+1,r)],
d0[IX(p,q,r+1)],d0[IX(p,q+1,r+1)],d0[IX(p+1,q,r+1)],d0[IX(p+1,q+1,r+1)]);
break;
default:
sprintf(msg,
"interpolation(): the required interpolation method %d is not available.",
para->solv->interpolation);
ffd_log(msg, FFD_ERROR);
return -1;
}
} // End of interpolation()
///////////////////////////////////////////////////////////////////////////////
/// TDMA solver for 3D
///
///\param para Pointer to FFD parameters
///\param var Pointer to FFD simulation variables
///\param type Type of variable
///\param psi Pointer to variable
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int TDMA_3D(PARA_DATA *para, REAL **var, int type, REAL *psi) {
int imax = para->geom->imax;
int jmax = para->geom->jmax;
int kmax = para->geom->kmax;
int i, j, k;
//West to East
for(i=1; i<=imax; i++) {
if(TDMA_YZ(para, var, psi, i)) {
ffd_log("TDMA_3D: Could not compute TDMA_YZ.", FFD_ERROR);
return 1;
}
}
//South to North
for(j=1; j<=jmax; j++) {
if(TDMA_ZX(para, var, psi, j)) {
ffd_log("TDMA_3D: Could not compute TDMA_ZX.", FFD_ERROR);
return 1;
}
}
//Back to Front
for(k=1; k<=kmax; k++) {
if(TDMA_XY(para, var, psi, k)) {
ffd_log("TDMA_3D: Could not compute TDMA_XY.", FFD_ERROR);
return 1;
}
}
//East to West
for(i=imax; i>=1; i--) {
if(TDMA_YZ(para, var, psi, i)) {
ffd_log("TDMA_3D: Could not compute TDMA_YZ.", FFD_ERROR);
return 1;
}
}
//North to South
for(j=jmax; j>=1; j--) {
if(TDMA_ZX(para, var, psi, j)) {
ffd_log("TDMA_3D: Could not compute TDMA_ZX.", FFD_ERROR);
return 1;
}
}
//Front to Back
for(k=kmax; k>=1; k--) {
if(TDMA_XY(para, var, psi, k)) {
ffd_log("TDMA_3D: Could not compute TDMA_YZ.", FFD_ERROR);
return 1;
}
}
return 0;
}// end of TDMA_3D()
///////////////////////////////////////////////////////////////////////////////
/// Entrance of setting boundary conditions
///
/// Specific boundary conditions will be selected according to the variable
/// type.
///
///\param para Pointer to FFD parameters
///\param var Pointer to FFD simulation variables
///\param var_type The type of variable
///\param index Index of trace substances or species
///\param psi Pointer to the variable needing the boundary conditions
///\param BINDEX Pointer to boundary index
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int set_bnd(PARA_DATA *para, REAL **var, int var_type, int index, REAL *psi,
int **BINDEX) {
int flag;
switch(var_type) {
case VX:
flag = set_bnd_vel(para, var, VX, psi, BINDEX);
if(flag!=0)
ffd_log("set_bnd(): Could not set boundary condition for X-velocity.",
FFD_ERROR);
break;
case VY:
flag = set_bnd_vel(para, var, VY, psi, BINDEX);
if(flag!=0)
ffd_log("set_bnd(): Could not set boundary condition for Y-velocity.",
FFD_ERROR);
break;
case VZ:
flag = set_bnd_vel(para, var, VZ, psi, BINDEX);
if(flag!=0)
ffd_log("set_bnd(): Could not set boundary condition for Z-velocity.",
FFD_ERROR);
break;
case TEMP:
flag = set_bnd_temp(para, var, TEMP, psi, BINDEX);
if(flag!=0)
ffd_log("set_bnd(): Could not set boundary condition for temperature.",
FFD_ERROR);
break;
case Xi1:
case Xi2:
case C1:
case C2:
flag = set_bnd_trace(para, var, index, psi, BINDEX);
if(flag!=0)
ffd_log("set_bnd(): Could not set boundary condition for trace.",
FFD_ERROR);
break;
default:
flag = 1;
sprintf(msg,
"set_bnd(): boundary condition for variable type %d is not defined.",
var_type);
ffd_log(msg, FFD_ERROR);
}
return flag;
} // End of set_bnd()
///////////////////////////////////////////////////////////////////////////////
/// Read other information from sci input file
///
///\param para Pointer to FFD parameters
///\param var Pointer to FFD simulation variables
///\param var_type Type of variable
///\param BINDEX Pointer to boundary index
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int read_sci_input(PARA_DATA *para, REAL **var, int **BINDEX) {
int i, j, k;
int ii,ij,ik;
REAL tempx, tempy, tempz;
REAL Lx = para->geom->Lx;
REAL Ly = para->geom->Ly;
REAL Lz = para->geom->Lz;
REAL *gx = var[GX], *gy = var[GY], *gz = var[GZ];
REAL *x = var[X], *y = var[Y], *z = var[Z];
int IWWALL,IEWALL,ISWALL,INWALL,IBWALL,ITWALL;
int SI,SJ,SK,EI,EJ,EK,FLTMP;
REAL TMP,MASS,U,V,W;
char name[1000];
int imax = para->geom->imax;
int jmax = para->geom->jmax;
int kmax = para->geom->kmax;
int index=0;
int IMAX = imax+2, IJMAX = (imax+2)*(jmax+2);
char string[4000];
REAL *delx, *dely, *delz;
REAL *flagp = var[FLAGP];
int bcnameid = -1;
// Open the parameter file
if((file_params=fopen(para->inpu->parameter_file_name,"r")) == NULL ) {
sprintf(msg,"read_sci_input(): Could not open the file \"%s\".",
para->inpu->parameter_file_name);
ffd_log(msg, FFD_ERROR);
return 1;
}
sprintf(msg, "read_sci_input(): Start to read sci input file %s",
para->inpu->parameter_file_name);
ffd_log(msg, FFD_NORMAL);
// Ignore the first and second lines
fgets(string, 400, file_params);
fgets(string, 400, file_params);
/*****************************************************************************
| Convert the cell dimensions defined by SCI to coordinates in FFD
*****************************************************************************/
// Allocate temporary memory for dimension of each cell
delx = (REAL *) malloc ((imax+2)*sizeof(REAL));
dely = (REAL *) malloc ((jmax+2)*sizeof(REAL));
delz = (REAL *) malloc ((kmax+2)*sizeof(REAL));
if( !delx || !dely ||!delz ) {
ffd_log("read_sci_input(): Cannot allocate memory for delx, dely or delz.",
FFD_ERROR);
return 1;
}
delx[0]=0;
dely[0]=0;
delz[0]=0;
// Read cell dimensions in X, Y, Z directions
for(i=1; i<=imax; i++) fscanf(file_params, "%f", &delx[i]);
fscanf(file_params,"\n");
for(j=1; j<=jmax; j++) fscanf(file_params, "%f", &dely[j]);
fscanf(file_params,"\n");
for(k=1; k<=kmax; k++) fscanf(file_params, "%f", &delz[k]);
fscanf(file_params,"\n");
// Store the locations of grid cell surfaces
tempx = 0.0; tempy = 0.0; tempz = 0.0;
for(i=0; i<=imax+1; i++) {
tempx += delx[i];
if(i>=imax) tempx = Lx;
for(j=0; j<=jmax+1; j++)
for(k=0; k<=kmax+1; k++) var[GX][IX(i,j,k)]=tempx;
}
for(j=0; j<=jmax+1; j++) {
tempy += dely[j];
if(j>=jmax) tempy = Ly;
for(i=0; i<=imax+1; i++)
for(k=0; k<=kmax+1; k++) var[GY][IX(i,j,k)] = tempy;
}
for(k=0; k<=kmax+1; k++) {
tempz += delz[k];
if(k>=kmax) tempz = Lz;
for(i=0; i<=imax+1; i++)
for(j=0; j<=jmax+1; j++) var[GZ][IX(i,j,k)] = tempz;
}
/*****************************************************************************
| Convert the coordinates for cell surfaces to
| the coordinates for the cell center
*****************************************************************************/
FOR_ALL_CELL
if(i<1)
x[IX(i,j,k)] = 0;
else if(i>imax)
x[IX(i,j,k)] = Lx;
else
x[IX(i,j,k)] = (REAL) 0.5 * (gx[IX(i,j,k)]+gx[IX(i-1,j,k)]);
if(j<1)
y[IX(i,j,k)] = 0;
else if(j>jmax)
y[IX(i,j,k)] = Ly;
else
y[IX(i,j,k)] = (REAL) 0.5 * (gy[IX(i,j,k)]+gy[IX(i,j-1,k)]);
if(k<1)
z[IX(i,j,k)] = 0;
else if(k>kmax)
z[IX(i,j,k)] = Lz;
else
z[IX(i,j,k)] = (REAL) 0.5 * (gz[IX(i,j,k)]+gz[IX(i,j,k-1)]);
END_FOR
// Get the wall property
fgets(string, 400, file_params);
sscanf(string,"%d%d%d%d%d%d", &IWWALL, &IEWALL, &ISWALL,
&INWALL, &IBWALL, &ITWALL);
/*****************************************************************************
| Read total number of boundary conditions
*****************************************************************************/
fgets(string, 400, file_params);
sscanf(string,"%d", ¶->bc->nb_bc);
sprintf(msg, "read_sci_input(): para->bc->nb_bc=%d", para->bc->nb_bc);
ffd_log(msg, FFD_NORMAL);
/*****************************************************************************
| Read the inlet boundary conditions
*****************************************************************************/
// Get number of inlet boundaries
fgets(string, 400, file_params);
sscanf(string,"%d", ¶->bc->nb_inlet);
sprintf(msg, "read_sci_input(): para->bc->nb_inlet=%d", para->bc->nb_inlet);
ffd_log(msg, FFD_NORMAL);
index=0;
// Set inlet boundary
if(para->bc->nb_inlet!=0) {
/*-------------------------------------------------------------------------
| Allocate the memory for bc name
-------------------------------------------------------------------------*/
para->bc->inletName = (char**) malloc(para->bc->nb_inlet*sizeof(char*));
if(para->bc->inletName==NULL) {
ffd_log("read_sci_input(): Could not allocate memory for "
"para->bc->inletName.", FFD_ERROR);
return 1;
}
/*-------------------------------------------------------------------------
| Loop for each inlet boundary
--------------------------------------------------------------------------*/
for(i=0; i<para->bc->nb_inlet; i++) {
/*.......................................................................
| Get the names of boundary
.......................................................................*/
fgets(string, 400, file_params);
// Get the length of name (The name may contain white space)
for(j=0; string[j] != '\n'; j++) {
continue;
}
para->bc->inletName[i] = (char*)malloc((j+1)*sizeof(char));
if(para->bc->inletName[i]==NULL) {
sprintf(msg, "read_sci_input(): Could not allocate memory for "
"para->bc->inletName[%d].", i);
ffd_log(msg, FFD_ERROR);
return 1;
}
strncpy(para->bc->inletName[i], (const char*)string, j);
// Add an ending
para->bc->inletName[i][j] = '\0';
sprintf(msg, "read_sci_input(): para->bc->inletName[%d]=%s",
i, para->bc->inletName[i]);
ffd_log(msg, FFD_NORMAL);
/*.......................................................................
| Get the boundary conditions
.......................................................................*/
fgets(string, 400, file_params);
sscanf(string,"%d%d%d%d%d%d%f%f%f%f%f", &SI, &SJ, &SK, &EI,
&EJ, &EK, &TMP, &MASS, &U, &V, &W);
sprintf(msg, "read_sci_input(): VX=%f, VY=%f, VZ=%f, T=%f, Xi=%f",
U, V, W, TMP, MASS);
ffd_log(msg, FFD_NORMAL);
if(EI==0) {
if(SI==1) SI = 0;
EI = SI + EI;
EJ = SJ + EJ - 1;
EK = SK + EK - 1;
}
if(EJ==0) {
if(SJ==1) SJ = 0;
EI = SI + EI - 1;
EJ = SJ + EJ;
EK = SK + EK - 1;
}
if(EK==0) {
if(SK==1) SK = 0;
EI = SI + EI - 1;
EJ = SJ + EJ - 1;
EK = SK + EK;
}
// Assign the inlet boundary condition for each cell
for(ii=SI; ii<=EI; ii++)
for(ij=SJ; ij<=EJ; ij++)
for(ik=SK; ik<=EK; ik++) {
BINDEX[0][index] = ii;
BINDEX[1][index] = ij;
BINDEX[2][index] = ik;
BINDEX[4][index] = i;
index++;
var[TEMPBC][IX(ii,ij,ik)] = TMP;
var[VXBC][IX(ii,ij,ik)] = U;
var[VYBC][IX(ii,ij,ik)] = V;
var[VZBC][IX(ii,ij,ik)] = W;
var[Xi1BC][IX(ii,ij,ik)] = MASS;
flagp[IX(ii,ij,ik)] = INLET; // Cell flag to be inlet
if(para->outp->version==DEBUG) {
sprintf(msg, "read_sci_input(): get inlet cell[%d,%d,%d]=%.1f",
ii, ij, ik, flagp[IX(ii,ij,ik)]);
ffd_log(msg, FFD_NORMAL);
}
} // End of assigning the inlet B.C. for each cell
} // End of loop for each inlet boundary
} // End of setting inlet boundary
/*****************************************************************************
| Read the outlet boundary conditions
*****************************************************************************/
fgets(string, 400, file_params);
sscanf(string, "%d", ¶->bc->nb_outlet);
sprintf(msg, "read_sci_input(): para->bc->nb_outlet=%d", para->bc->nb_outlet);
ffd_log(msg, FFD_NORMAL);
if(para->bc->nb_outlet!=0) {
para->bc->outletName = (char**) malloc(para->bc->nb_outlet*sizeof(char*));
if(para->bc->outletName==NULL) {
ffd_log("read_sci_input(): Could not allocate memory for "
"para->bc->outletName.", FFD_ERROR);
return 1;
}
for(i=0; i<para->bc->nb_outlet; i++) {
/*.......................................................................
| Get the names of boundary
.......................................................................*/
fgets(string, 400, file_params);
// Get the length of name (The name may contain white space)
for(j=0; string[j] != '\n'; j++) {
continue;
}
para->bc->outletName[i] = (char*)malloc((j+1)*sizeof(char));
if(para->bc->outletName[i]==NULL) {
sprintf(msg, "read_sci_input(): Could not allocate memory "
"for para->bc->outletName[%d].", i);
ffd_log(msg, FFD_ERROR);
return 1;
}
strncpy(para->bc->outletName[i], (const char*)string, j);
// Add an ending
para->bc->outletName[i][j] = '\0';
sprintf(msg, "read_sci_input(): para->bc->outletName[%d]=%s",
i, para->bc->outletName[i]);
ffd_log(msg, FFD_NORMAL);
/*.......................................................................
| Get the boundary conditions
.......................................................................*/
fgets(string, 400, file_params);
sscanf(string,"%d%d%d%d%d%d%f%f%f%f%f",
&SI, &SJ, &SK, &EI,
&EJ, &EK, &TMP, &MASS, &U, &V, &W);
sprintf(msg, "read_sci_input(): VX=%f, VY=%f, VX=%f, T=%f, Xi=%f",
U, V, W, TMP, MASS);
ffd_log(msg, FFD_NORMAL);
if(EI==0) {
if(SI==1) SI=0;
EI = SI + EI;
EJ = SJ + EJ - 1;
EK = SK + EK - 1;
}
if(EJ==0) {
if(SJ==1) SJ=0;
EI = SI+EI-1;
EJ = SJ+EJ;
EK = SK+EK-1;
}
if(EK==0) {
if(SK==1) SK = 0;
EI = SI+EI-1;
EJ = SJ+EJ-1;
EK = SK+EK;
}
// Assign the outlet boundary condition for each cell
for(ii=SI; ii<=EI ;ii++)
for(ij=SJ; ij<=EJ ;ij++)
for(ik=SK; ik<=EK; ik++) {
BINDEX[0][index] = ii;
BINDEX[1][index] = ij;
BINDEX[2][index] = ik;
BINDEX[4][index] = para->bc->nb_inlet + i;
index++;
// Give the initial value, but the value will be overwritten later
var[TEMPBC][IX(ii,ij,ik)] = TMP;
var[VXBC][IX(ii,ij,ik)] = U;
var[VYBC][IX(ii,ij,ik)] = V;
var[VZBC][IX(ii,ij,ik)] = W;
var[Xi1BC][IX(ii,ij,ik)] = MASS;
flagp[IX(ii,ij,ik)] = OUTLET;
if(para->outp->version==DEBUG) {
sprintf(msg, "read_sci_input(): get outlet cell[%d,%d,%d]=%.1f",
ii, ij, ik, flagp[IX(ii,ij,ik)]);
ffd_log(msg, FFD_NORMAL);
}
} // End of assigning the outlet B.C. for each cell
} // End of loop for each outlet boundary
} // End of setting outlet boundary
/*****************************************************************************
| - Copy the inlet and outlet information to ports
| - Allocate memory for related port variables
*****************************************************************************/
para->bc->nb_port = para->bc->nb_inlet+para->bc->nb_outlet;
if(para->bc->nb_port>0) {
// Allocate memory for the array of ports' names
para->bc->portName = (char**) malloc(para->bc->nb_port*sizeof(char*));
if(para->bc->portName==NULL) {
ffd_log("read_sci_input(): Could not allocate memory for para->bc->portName.",
FFD_ERROR);
return 1;
}
/*--------------------------------------------------------------------------
| Copy the inlet names to ports' names
--------------------------------------------------------------------------*/
for(i=0; i<para->bc->nb_inlet; i++) {
// Allocate memory for inlet name
para->bc->portName[i] =
(char*) malloc(sizeof(char)*(sizeof(para->bc->inletName[i])+1));
if(para->bc->portName[i]==NULL) {
ffd_log("read_sci_input():"
"Could not allocate memory for para->bc->portName.",
FFD_ERROR);
return 1;
}
// Copy the inlet name
strcpy(para->bc->portName[i], para->bc->inletName[i]);
sprintf(msg, "read_sci_input(): Port[%d]:%s",
i, para->bc->portName[i]);
ffd_log(msg, FFD_NORMAL);
}
/*--------------------------------------------------------------------------
| Copy the outlet names to ports' names
--------------------------------------------------------------------------*/
j = para->bc->nb_inlet;
for(i=0; i<para->bc->nb_outlet; i++) {
// Allocate memory for outlet name
para->bc->portName[i+j] =
(char*) malloc(sizeof(char)*(sizeof(para->bc->outletName[i])+1));
if(para->bc->portName[i+j]==NULL) {
ffd_log("read_sci_input(): "
"Could not allocate memory for para->bc->portName.",
FFD_ERROR);
return 1;
}
else {
strcpy(para->bc->portName[i+j], para->bc->outletName[i]);
sprintf(msg, "read_sci_input(): Port[%d]:%s",
i+j, para->bc->portName[i+j]);
ffd_log(msg, FFD_NORMAL);
}
}
/*--------------------------------------------------------------------------
| Allocate memory for the surface area
--------------------------------------------------------------------------*/
para->bc->APort = (REAL*) malloc(para->bc->nb_port*sizeof(REAL));
if(para->bc->APort==NULL) {
ffd_log("read_sci_input(): "
"Could not allocate memory for para->bc->APort.",
FFD_ERROR);
return 1;
}
/*--------------------------------------------------------------------------
| Allocate memory for the velocity (used for inlet only)
--------------------------------------------------------------------------*/
para->bc->velPort = (REAL*) malloc(para->bc->nb_port*sizeof(REAL));
if(para->bc->velPort==NULL) {
ffd_log("read_sci_input(): "
"Could not allocate memory for para->bc->velPort.",
FFD_ERROR);
return 1;
}
/*--------------------------------------------------------------------------
| Allocate memory for the averaged velocity
--------------------------------------------------------------------------*/
para->bc->velPortAve = (REAL*) malloc(para->bc->nb_port*sizeof(REAL));
if(para->bc->velPortAve==NULL) {
ffd_log("read_sci_input(): "
"Could not allocate memory for para->bc->velAve.",
FFD_ERROR);
return 1;
}
/*--------------------------------------------------------------------------
| Allocate memory for mean velocity
--------------------------------------------------------------------------*/
para->bc->velPortMean = (REAL*) malloc(para->bc->nb_port*sizeof(REAL));
if(para->bc->velPortMean==NULL) {
ffd_log("read_sci_input(): "
"Could not allocate memory for para->bc->velPortMean.",
FFD_ERROR);
return 1;
}
/*--------------------------------------------------------------------------
| Allocate memory for the temperature (used for inlet only)
--------------------------------------------------------------------------*/
para->bc->TPort = (REAL*) malloc(para->bc->nb_port*sizeof(REAL));
if(para->bc->TPort==NULL) {
ffd_log("read_sci_input(): "
"Could not allocate memory for para->bc->TPort.",
FFD_ERROR);
return 1;
}
/*--------------------------------------------------------------------------
| Allocate memory for the averaged temperature
--------------------------------------------------------------------------*/
para->bc->TPortAve = (REAL*) malloc(para->bc->nb_port*sizeof(REAL));
if(para->bc->TPortAve==NULL) {
ffd_log("read_sci_input(): "
"Could not allocate memory for para->bc->TPortAve.",
FFD_ERROR);
return 1;
}
/*--------------------------------------------------------------------------
| Allocate memory for the mean velocity
--------------------------------------------------------------------------*/
para->bc->TPortMean = (REAL*) malloc(para->bc->nb_port*sizeof(REAL));
if(para->bc->TPortMean==NULL) {
ffd_log("read_sci_input(): "
"Could not allocate memory for para->bc->TPortMean.",
FFD_ERROR);
return 1;
}
/*--------------------------------------------------------------------------
| Allocate memory for port ID
--------------------------------------------------------------------------*/
para->bc->portId = (int*) malloc(para->bc->nb_port*sizeof(int));
if(para->bc->portId==NULL) {
ffd_log("read_sci_input(): "
"Could not allocate memory for para->bc->portId.",
FFD_ERROR);
return 1;
}
}
/*****************************************************************************
| Read the internal solid block boundary conditions
*****************************************************************************/
fgets(string, 400, file_params);
sscanf(string, "%d", ¶->bc->nb_block);
sprintf(msg, "read_sci_input(): para->bc->nb_block=%d", para->bc->nb_block);
ffd_log(msg, FFD_NORMAL);
if(para->bc->nb_block!=0) {
para->bc->blockName = (char**) malloc(para->bc->nb_block*sizeof(char*));
if(para->bc->blockName==NULL) {
ffd_log("read_sci_input(): Could not allocate memory for para->bc->blockName.",
FFD_ERROR);
return 1;
}
for(i=0; i<para->bc->nb_block; i++) {
/*.......................................................................
| Get the names of boundary
.......................................................................*/
fgets(string, 400, file_params);
// Get the length of name (The name may contain white space)
for(j=0; string[j] != '\n'; j++) {
continue;
}
para->bc->blockName[i] = (char*)malloc((j+1)*sizeof(char));
if(para->bc->blockName[i]==NULL) {
sprintf(msg,"read_sci_input(): Could not allocate memory for "
"para->bc->blockName[%d].", i);
ffd_log(msg, FFD_ERROR);
return 1;
}
strncpy(para->bc->blockName[i], (const char*)string, j);
// Add an ending
para->bc->blockName[i][j] = '\0';
sprintf(msg, "read_sci_input(): para->bc->blockName[%d]=%s",
i, para->bc->blockName[i]);
ffd_log(msg, FFD_NORMAL);
/*.......................................................................
| Get the boundary conditions
.......................................................................*/
fgets(string, 400, file_params);
// X_index_start, Y_index_Start, Z_index_Start,
// X_index_End, Y_index_End, Z_index_End,
// Thermal Condition (0: Flux; 1:Temperature), Value of thermal condition
sscanf(string,"%d%d%d%d%d%d%d%f", &SI, &SJ, &SK, &EI, &EJ, &EK,
&FLTMP, &TMP);
sprintf(msg, "read_sci_input(): VX=%f, VY=%f, VX=%f, ThermalBC=%d, T/q_dot=%f, Xi=%f",
U, V, W, FLTMP, TMP, MASS);
ffd_log(msg, FFD_NORMAL);
if(SI==1) {
SI=0;
if(EI>=imax) EI=EI+SI+1;
else EI=EI+SI;
}
else
EI=EI+SI-1;
if(SJ==1) {
SJ=0;
if(EJ>=jmax) EJ=EJ+SJ+1;
else EJ=EJ+SJ;
}
else
EJ=EJ+SJ-1;
if(SK==1) {
SK=0;
if(EK>=kmax) EK=EK+SK+1;
else EK=EK+SK;
}
else
EK=EK+SK-1;
for(ii=SI; ii<=EI; ii++)
for(ij=SJ; ij<=EJ; ij++)
for(ik=SK; ik<=EK; ik++) {
BINDEX[0][index] = ii;
BINDEX[1][index] = ij;
BINDEX[2][index] = ik;
BINDEX[3][index] = FLTMP;
BINDEX[4][index] = i;
index++;
switch(FLTMP) {
case 1:
var[TEMPBC][IX(ii,ij,ik)] = TMP;
break;
case 0:
var[QFLUXBC][IX(ii,ij,ik)] = TMP;
break;
default:
sprintf(msg, "read_sci_input(): Thermal BC (%d)"
"for cell(%d,%d,%d) was not defined",
FLTMP, ii, ij, ik);
ffd_log(msg, FFD_ERROR);
return 1;
}
flagp[IX(ii,ij,ik)] = SOLID; // Flag for solid
} // End of assigning value for internal solid block
}
}
/*****************************************************************************
| Read the wall boundary conditions
*****************************************************************************/
fgets(string, 400, file_params);
sscanf(string,"%d", ¶->bc->nb_wall);
sprintf(msg, "read_sci_input(): para->bc->nb_wall=%d", para->bc->nb_wall);
ffd_log(msg, FFD_NORMAL);
if(para->bc->nb_wall!=0) {
/*-------------------------------------------------------------------------
| Allocate the memory for bc name and id
-------------------------------------------------------------------------*/
para->bc->wallName = (char**)malloc(para->bc->nb_wall*sizeof(char*));
if(para->bc->wallName==NULL) {
ffd_log("read_sci_input(): Could not allocate memory for "
"para->bc->wallName.", FFD_ERROR);
return 1;
}
para->bc->wallId = (int *)malloc(sizeof(int)*para->bc->nb_wall);
if(para->bc->wallId==NULL) {
ffd_log("read_sci_input(): Could not allocate memory for "
"para->bc->wallId.", FFD_ERROR);
return 1;
}
for(i=0; i<para->bc->nb_wall; i++)
para->bc->wallId[i] = -1;
para->bc->AWall = (REAL*) malloc(para->bc->nb_wall*sizeof(REAL));
if(para->bc->AWall==NULL) {
ffd_log("read_sci_input(): Could not allocate memory for "
"para->bc->AWall.", FFD_ERROR);
return 1;
}
para->bc->temHea = (REAL*) malloc(para->bc->nb_wall*sizeof(REAL));
if(para->bc->temHea==NULL) {
ffd_log("read_sci_input(): Could not allocate memory for "
"para->bc->heaTem.", FFD_ERROR);
return 1;
}
para->bc->temHeaAve = (REAL*) malloc(para->bc->nb_wall*sizeof(REAL));
if(para->bc->temHeaAve==NULL) {
ffd_log("read_sci_input(): Could not allocate memory for "
"para->bc->temHeaAve.", FFD_ERROR);
return 1;
}
para->bc->temHeaMean = (REAL*) malloc(para->bc->nb_wall*sizeof(REAL));
if(para->bc->temHeaMean==NULL) {
ffd_log("read_sci_input(): Could not allocate memory for "
"para->bc->temHeaMean.", FFD_ERROR);
return 1;
}
/*-------------------------------------------------------------------------
| Read wall conditions for each wall
-------------------------------------------------------------------------*/
for(i=0; i<para->bc->nb_wall; i++) {
/*.......................................................................
| Get the names of boundary
.......................................................................*/
fgets(string, 400, file_params);
// Get the length of name (The name may contain white space)
for(j=0; string[j] != '\n'; j++) {
continue;
}
para->bc->wallName[i] = (char*)malloc((j+1)*sizeof(char));
if(para->bc->wallName[i]==NULL) {
sprintf(msg, "read_sci_input(): Could not allocate memory for "
"para->bc->wallName[%d].", i);
ffd_log(msg, FFD_ERROR);
return 1;
}
strncpy(para->bc->wallName[i], (const char*)string, j);
// Add an ending
para->bc->wallName[i][j] = '\0';
sprintf(msg, "read_sci_input(): para->bc->wallName[%d]=\"%s\"",
i, para->bc->wallName[i]);
ffd_log(msg, FFD_NORMAL);
/*.......................................................................
| Get the boundary conditions
.......................................................................*/
// X_index_start, Y_index_Start, Z_index_Start,
// X_index_End, Y_index_End, Z_index_End,
// Thermal Condition (0: Flux; 1:Temperature), Value of thermal condition
fgets(string, 400, file_params);
sscanf(string,"%d%d%d%d%d%d%d%f", &SI, &SJ, &SK, &EI,
&EJ, &EK, &FLTMP, &TMP);
sprintf(msg, "read_sci_input(): ThermalBC=%d, T/q_dot=%f",
FLTMP, TMP);
ffd_log(msg, FFD_NORMAL);
// Reset X index
if(SI==1) { // West
SI = 0;
if(EI>=imax) EI = EI + 1;
}
else if(SI==imax+1) // East
EI = EI + SI;
else // Internal
EI = EI + SI - 1;
// Reset Y index
if(SJ==1) { // South
SJ = 0;
if(EJ>=jmax) EJ = EJ + 1;
}
else if(SJ==jmax+1) // North
EJ = EJ + SJ;
else // Internal
EJ = EJ + SJ - 1;
// Reset Z index
if(SK==1) { // Floor
SK = 0;
if(EK>=kmax) EK = EK + 1;
}
else if (SK==kmax+1) // Ceiling
EK = EK + SK;
else // Internal
EK = EK + SK -1;
// Assign value for each wall cell
for(ii=SI; ii<=EI; ii++)
for(ij=SJ; ij<=EJ; ij++)
for(ik=SK; ik<=EK; ik++) {
// If cell hasn't been updated (default value -1)
if(flagp[IX(ii,ij,ik)]<0) {
BINDEX[0][index] = ii;
BINDEX[1][index] = ij;
BINDEX[2][index] = ik;
// Define the thermal boundary property
BINDEX[3][index] = FLTMP;
BINDEX[4][index] = i;
index++;
// Set the cell to solid
flagp[IX(ii,ij,ik)] = SOLID;
if(FLTMP==1) var[TEMPBC][IX(ii,ij,ik)] = TMP;
if(FLTMP==0) var[QFLUXBC][IX(ii,ij,ik)] = TMP;
}
} // End of assigning value for each wall cell
} // End of assigning value for each wall surface
} // End of assigning value for wall boundary
/*****************************************************************************
| Read the boundary conditions for contaminant source
| Warning: The data is ignored in current version
*****************************************************************************/
fgets(string, 400, file_params);
sscanf(string,"%d", ¶->bc->nb_source);
sprintf(msg, "read_sci_input(): para->bc->nb_source=%d", para->bc->nb_source);
ffd_log(msg, FFD_NORMAL);
if(para->bc->nb_source!=0) {
sscanf(string,"%s%d%d%d%d%d%d%f",
name, &SI, &SJ, &SK, &EI, &EJ, &EK, &MASS);
bcnameid++;
sprintf(msg, "read_sci_input(): Source %s is not used in current version.",
name);
ffd_log(msg, FFD_WARNING);
sprintf(msg, "read_sci_input(): Xi_dot=%f", MASS);
ffd_log(msg, FFD_NORMAL);
//Warning: Need to add code to assign the BC value as other part does
}
para->geom->index=index;
/*****************************************************************************
| Read other simulation data
*****************************************************************************/
// Discard the unused data
fgets(string, 400, file_params); //maximum iteration
fgets(string, 400, file_params); //convergence rate
fgets(string, 400, file_params); //Turbulence model
fgets(string, 400, file_params); //initial value
fgets(string, 400, file_params); //minimum value
fgets(string, 400, file_params); //maximum value
fgets(string, 400, file_params); //fts value
fgets(string, 400, file_params); //under relaxation
fgets(string, 400, file_params); //reference point
fgets(string, 400, file_params); //monitoring point
// Discard setting for restarting the old FFD simulation
fgets(string, 400, file_params);
/*
sscanf(string,"%d", ¶->inpu->read_old_ffd_file);
sprintf(msg, "read_sci_input(): para->inpu->read_old_ffd_file=%d",
para->inpu->read_old_ffd_file);
ffd_log(msg, FFD_NORMAL);
*/
// Discard the unused data
fgets(string, 400, file_params); //print frequency
fgets(string, 400, file_params); //Pressure variable Y/N
fgets(string, 400, file_params); //Steady state, buoyancy.
// Discard physical properties
fgets(string, 400, file_params);
/*
sscanf(string,"%f %f %f %f %f %f %f %f %f", ¶->prob->rho,
¶->prob->nu, ¶->prob->cond,
¶->prob->gravx, ¶->prob->gravy, ¶->prob->gravz,
¶->prob->beta, &trefmax, ¶->prob->Cp);
sprintf(msg, "read_sci_input(): para->prob->rho=%f", para->prob->rho);
ffd_log(msg, FFD_NORMAL);
sprintf(msg, "read_sci_input(): para->prob->nu=%f", para->prob->nu);
ffd_log(msg, FFD_NORMAL);
sprintf(msg, "read_sci_input(): para->prob->cond=%f", para->prob->cond);
ffd_log(msg, FFD_NORMAL);
sprintf(msg, "read_sci_input(): para->prob->gravx=%f", para->prob->gravx);
ffd_log(msg, FFD_NORMAL);
sprintf(msg, "read_sci_input(): para->prob->gravy=%f", para->prob->gravy);
ffd_log(msg, FFD_NORMAL);
sprintf(msg, "read_sci_input(): para->prob->gravz=%f", para->prob->gravz);
ffd_log(msg, FFD_NORMAL);
sprintf(msg, "read_sci_input(): para->prob->beta=%f", para->prob->beta);
ffd_log(msg, FFD_NORMAL);
//para->prob->trefmax=trefmax;
sprintf(msg, "read_sci_input(): para->prob->Cp=%f", para->prob->Cp);
ffd_log(msg, FFD_NORMAL);
*/
// Read simulation time settings
fgets(string, 400, file_params);
sscanf(string,"%f %f %d", ¶->mytime->t_start, ¶->mytime->dt,
¶->mytime->step_total);
sprintf(msg, "read_sci_input(): para->mytime->t_start=%f",
para->mytime->t_start);
ffd_log(msg, FFD_NORMAL);
sprintf(msg, "read_sci_input(): para->mytime->dt=%f", para->mytime->dt);
ffd_log(msg, FFD_NORMAL);
sprintf(msg, "read_sci_input(): para->mytime->step_total=%d",
para->mytime->step_total);
ffd_log(msg, FFD_NORMAL);
fgets(string, 400, file_params); //prandtl
/*****************************************************************************
| Conclude the reading process
*****************************************************************************/
fclose(file_params);
free(delx);
free(dely);
free(delz);
sprintf(msg, "read_sci_input(): Read sci input file %s",
para->inpu->parameter_file_name);
ffd_log(msg, FFD_NORMAL);
return 0;
} // End of read_sci_input()
///////////////////////////////////////////////////////////////////////////////
/// Calcuate coefficients for difussion equation solver
///
///\param para Pointer to FFD parameters
///\param var Pointer to FFD simulation variables
///\param psi Pointer to the variable at current time step
///\param psi0 Pointer to the variable at previous time step
///\param var_type Type of variable
///\param index Index of trace substance or species
///\param BINDEX Pointer to boundary index
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int coef_diff(PARA_DATA *para, REAL **var, REAL *psi, REAL *psi0,
int var_type, int index, int **BINDEX) {
int i, j, k;
int imax = para->geom->imax, jmax = para->geom->jmax;
int kmax = para->geom->kmax;
int IMAX = imax+2, IJMAX = (imax+2)*(jmax+2);
REAL *aw = var[AW], *ae = var[AE], *as = var[AS], *an = var[AN];
REAL *af = var[AF], *ab = var[AB], *ap = var[AP], *ap0 = var[AP0], *b = var[B];
REAL *x = var[X], *y = var[Y], *z = var[Z];
REAL *gx = var[GX], *gy = var[GY], *gz = var[GZ];
REAL *pp = var[PP];
REAL *Temp = var[TEMP];
REAL dxe, dxw, dyn, dys, dzf, dzb, Dx, Dy, Dz;
REAL dt = para->mytime->dt, beta = para->prob->beta;
REAL Temp_Buoyancy = para->prob->Temp_Buoyancy;
REAL gravx = para->prob->gravx, gravy = para->prob->gravy,
gravz = para->prob->gravz;
REAL kapa;
// define kapa
switch(var_type) {
/*-------------------------------------------------------------------------
| X-velocity
-------------------------------------------------------------------------*/
case VX:
if(para->prob->tur_model==LAM)
kapa = para->prob->nu;
else if(para->prob->tur_model==CONSTANT)
kapa = 101.0f * para->prob->nu;
FOR_U_CELL
dxe = gx[IX(i+1,j ,k)] - gx[IX(i ,j,k)];
dxw = gx[IX(i ,j ,k)] - gx[IX(i-1,j,k)];
dyn = y[IX(i ,j+1,k)] - y[IX(i ,j,k)];
dys = y[IX(i,j,k)] - y[IX(i,j-1,k)];
dzf = z[IX(i,j,k+1)] - z[IX(i,j,k)];
dzb = z[IX(i,j,k)] - z[IX(i,j,k-1)];
Dx = x[IX(i+1,j,k)] - x[IX(i,j,k)];
Dy = gy[IX(i,j,k)] - gy[IX(i,j-1,k)];
Dz = gz[IX(i,j,k)] - gz[IX(i,j,k-1)];
if(para->prob->tur_model==CHEN)
kapa = nu_t_chen_zero_equ(para, var, i, j, k);
aw[IX(i,j,k)] = kapa*Dy*Dz/dxw;
ae[IX(i,j,k)] = kapa*Dy*Dz/dxe;
an[IX(i,j,k)] = kapa*Dx*Dz/dyn;
as[IX(i,j,k)] = kapa*Dx*Dz/dys;
af[IX(i,j,k)] = kapa*Dx*Dy/dzf;
ab[IX(i,j,k)] = kapa*Dx*Dy/dzb;
ap0[IX(i,j,k)] = Dx*Dy*Dz/dt;
b[IX(i,j,k)] = psi0[IX(i,j,k)]*ap0[IX(i,j,k)]
- beta*gravx*(Temp[IX(i,j,k)]-Temp_Buoyancy)*Dx*Dy*Dz
+ (pp[IX(i,j,k)]-pp[IX(i+1,j,k)])*Dy*Dz;
END_FOR
//set_bnd(para, var, var_type, psi, BINDEX);
FOR_U_CELL
ap[IX(i,j,k)] = ap0[IX(i,j,k)] + ae[IX(i,j,k)] + aw[IX(i,j,k)]
+ an[IX(i,j,k)] + as[IX(i,j,k)] + af[IX(i,j,k)]
+ ab[IX(i,j,k)];
END_FOR
break;
/*-------------------------------------------------------------------------
| Y-velocity
-------------------------------------------------------------------------*/
case VY:
if(para->prob->tur_model==LAM)
kapa = para->prob->nu;
else if(para->prob->tur_model==CONSTANT)
kapa = (REAL) 101.0 * para->prob->nu;
FOR_V_CELL
dxe = x[IX(i+1,j,k)] - x[IX(i,j,k)];
dxw = x[IX(i,j,k)] - x[IX(i-1,j,k)];
dyn = gy[IX(i,j+1,k)] - gy[IX(i,j,k)];
dys = gy[IX(i,j,k)] - gy[IX(i,j-1,k)];
dzf = z[IX(i,j,k+1)] - z[IX(i,j,k)];
dzb = z[IX(i,j,k)] - z[IX(i,j,k-1)];
Dx = gx[IX(i,j,k)] - gx[IX(i-1,j,k)];
Dy = y[IX(i,j+1,k)] - y[IX(i,j,k)];
Dz = gz[IX(i,j,k)] - gz[IX(i,j,k-1)];
if(para->prob->tur_model==CHEN)
kapa = nu_t_chen_zero_equ(para, var, i, j, k);
aw[IX(i,j,k)] = kapa*Dy*Dz/dxw;
ae[IX(i,j,k)] = kapa*Dy*Dz/dxe;
an[IX(i,j,k)] = kapa*Dx*Dz/dyn;
as[IX(i,j,k)] = kapa*Dx*Dz/dys;
af[IX(i,j,k)] = kapa*Dx*Dy/dzf;
ab[IX(i,j,k)] = kapa*Dx*Dy/dzb;
ap0[IX(i,j,k)] = Dx*Dy*Dz/dt;
b[IX(i,j,k)] = psi0[IX(i,j,k)]*ap0[IX(i,j,k)]
- beta*gravy*(Temp[IX(i,j,k)]-Temp_Buoyancy)*Dx*Dy*Dz
+ (pp[IX(i,j,k)]-pp[IX(i ,j+1,k)])*Dx*Dz;
END_FOR
//set_bnd(para, var, var_type, psi,BINDEX);
FOR_V_CELL
ap[IX(i,j,k)] = ap0[IX(i,j,k)] + ae[IX(i,j,k)] + aw[IX(i,j,k)]
+ an[IX(i,j,k)] + as[IX(i,j,k)] + af[IX(i,j,k)]
+ ab[IX(i,j,k)];
END_FOR
break;
/*-------------------------------------------------------------------------
| Z-velocity
-------------------------------------------------------------------------*/
case VZ:
if(para->prob->tur_model==LAM)
kapa = para->prob->nu;
else if(para->prob->tur_model==CONSTANT)
kapa = (REAL) 101.0 * para->prob->nu;
FOR_W_CELL
dxe = x[IX(i+1,j,k)] - x[IX(i,j,k)];
dxw = x[IX(i,j,k)] - x[IX(i-1,j,k)];
dyn = y[IX(i,j+1,k)] - y[IX(i,j,k)];
dys = y[IX(i,j,k)] - y[IX(i,j-1,k)];
dzf = gz[IX(i,j,k+1)] - gz[IX(i,j,k)];
dzb = gz[IX(i,j,k)] - gz[IX(i,j,k-1)];
Dx = gx[IX(i,j,k)] - gx[IX(i-1,j,k)];
Dy = gy[IX(i,j,k)] - gy[IX(i,j-1,k)];
Dz = z[IX(i,j,k+1)] - z[IX(i,j,k)];
if(para->prob->tur_model==CHEN)
kapa = nu_t_chen_zero_equ(para, var, i, j, k);
aw[IX(i,j,k)] = kapa*Dy*Dz/dxw;
ae[IX(i,j,k)] = kapa*Dy*Dz/dxe;
an[IX(i,j,k)] = kapa*Dx*Dz/dyn;
as[IX(i,j,k)] = kapa*Dx*Dz/dys;
af[IX(i,j,k)] = kapa*Dx*Dy/dzf;
ab[IX(i,j,k)] = kapa*Dx*Dy/dzb;
ap0[IX(i,j,k)] = Dx*Dy*Dz/dt;
b[IX(i,j,k)] = psi0[IX(i,j,k)]*ap0[IX(i,j,k)]
- beta*gravz*(Temp[IX(i,j,k)]-Temp_Buoyancy)*Dx*Dy*Dz
+ (pp[IX(i,j,k)]-pp[IX(i ,j,k+1)])*Dy*Dx;
END_FOR
//set_bnd(para, var, var_type, psi, BINDEX);
FOR_W_CELL
ap[IX(i,j,k)] = ap0[IX(i,j,k)] + ae[IX(i,j,k)] + aw[IX(i,j,k)]
+ an[IX(i,j,k)] + as[IX(i,j,k)] + af[IX(i,j,k)]
+ ab[IX(i,j,k)];
END_FOR
break;
/*-------------------------------------------------------------------------
| Scalar Variable
-------------------------------------------------------------------------*/
case TEMP:
case TRACE:
if(para->prob->tur_model == LAM)
kapa = para->prob->alpha;
else if(para->prob->tur_model == CONSTANT)
kapa = (REAL) 101.0 * para->prob->alpha;
FOR_EACH_CELL
dxe = x[IX(i+1,j,k)] - x[IX(i,j,k)];
dxw = x[IX(i,j,k)] - x[IX(i-1,j,k)];
dyn = y[IX(i,j+1,k)] - y[IX(i,j,k)];
dys = y[IX(i,j,k)] - y[IX(i,j-1,k)];
dzf = z[IX(i,j,k+1)] - z[IX(i,j,k)];
dzb = z[IX(i,j,k)] - z[IX(i,j,k-1)];
Dx = gx[IX(i,j,k)] - gx[IX(i-1,j,k)];
Dy = gy[IX(i,j,k)] - gy[IX(i,j-1,k)];
Dz = gz[IX(i,j,k)] - gz[IX(i,j,k-1)];
aw[IX(i,j,k)] = kapa*Dy*Dz/dxw;
ae[IX(i,j,k)] = kapa*Dy*Dz/dxe;
an[IX(i,j,k)] = kapa*Dx*Dz/dyn;
as[IX(i,j,k)] = kapa*Dx*Dz/dys;
af[IX(i,j,k)] = kapa*Dx*Dy/dzf;
ab[IX(i,j,k)] = kapa*Dx*Dy/dzb;
ap0[IX(i,j,k)] = Dx*Dy*Dz/dt;
b[IX(i,j,k)] = psi0[IX(i,j,k)]*ap0[IX(i,j,k)];
END_FOR
set_bnd(para, var, var_type, index, psi, BINDEX);
FOR_EACH_CELL
ap[IX(i,j,k)] = ap0[IX(i,j,k)] + ae[IX(i,j,k)] + aw[IX(i,j,k)]
+ an[IX(i,j,k)] + as[IX(i,j,k)] + af[IX(i,j,k)] + ab[IX(i,j,k)];
END_FOR
break;
default:
sprintf(msg, "coe_diff(): No function for variable type %d", var_type);
ffd_log(msg, FFD_ERROR);
return 1;
break;
}
return 0;
}// End of coef_diff( )
///////////////////////////////////////////////////////////////////////////////
/// Main routine of FFD
///
///\para coupled simulation Integer to identify the simulation type
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int ffd(int cosimulation) {
#ifndef _MSC_VER //Linux
//Initialize glut library
char fakeParam[] = "fake";
char *fakeargv[] = { fakeParam, NULL };
int fakeargc = 1;
glutInit( &fakeargc, fakeargv );
#endif
// Initialize the parameters
para.geom = &geom;
para.inpu = &inpu;
para.outp = &outp1;
para.prob = &prob;
para.mytime = &mytime;
para.bc = &bc;
para.solv = &solv;
para.sens = &sens;
para.init = &init;
// Stand alone simulation: 0; Cosimulaiton: 1
para.solv->cosimulation = cosimulation;
if(initialize(¶)!=0) {
ffd_log("ffd(): Could not initialize simulation parameters.", FFD_ERROR);
return 1;
}
// Overwrite the mesh and simulation data using SCI generated file
if(para.inpu->parameter_file_format == SCI) {
if(read_sci_max(¶, var)!=0) {
ffd_log("ffd(): Could not read SCI data.", FFD_ERROR);
return 1;
}
}
// Allocate memory for the variables
if(allocate_memory(¶)!=0) {
ffd_log("ffd(): Could not allocate memory for the simulation.", FFD_ERROR);
return 1;
}
// Set the initial values for the simulation data
if(set_initial_data(¶, var, BINDEX)) {
ffd_log("ffd(): Could not set initial data.", FFD_ERROR);
return 1;
}
// Read previous simulation data as initial values
if(para.inpu->read_old_ffd_file==1) read_ffd_data(¶, var);
ffd_log("ffd.c: Start FFD solver.", FFD_NORMAL);
//write_tecplot_data(¶, var, "initial");
// Solve the problem
if(para.outp->version==DEMO) {
open_glut_window();
glutMainLoop();
}
else
if(FFD_solver(¶, var, BINDEX)!=0) {
ffd_log("ffd(): FFD solver failed.", FFD_ERROR);
return 1;
}
/*---------------------------------------------------------------------------
| Post Process
---------------------------------------------------------------------------*/
// Calculate mean value
if(para.outp->cal_mean == 1)
average_time(¶, var);
if(write_unsteady(¶, var, "unsteady")!=0) {
ffd_log("FFD_solver(): Could not write the file unsteady.plt.", FFD_ERROR);
return 1;
}
if(write_tecplot_data(¶, var, "result")!=0) {
ffd_log("FFD_solver(): Could not write the file result.plt.", FFD_ERROR);
return 1;
}
if(para.outp->version == DEBUG)
write_tecplot_all_data(¶, var, "result_all");
// Write the data in SCI format
write_SCI(¶, var, "output");
// Free the memory
free_data(var);
free_index(BINDEX);
// End the simulation
if(para.outp->version==DEBUG || para.outp->version==DEMO) {}//getchar();
// Inform Modelica the stopping command has been received
if(para.solv->cosimulation==1) {
para.cosim->para->flag = 2;
ffd_log("ffd(): Sent stopping signal to Modelica", FFD_NORMAL);
}
return 0;
} // End of ffd( )
///////////////////////////////////////////////////////////////////////////////
/// Write the FFD data for Modelica
///
///\param para Pointer to FFD parameters
///\param var Pointer to FFD simulation variables
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int write_cosim_data(PARA_DATA *para, REAL **var) {
int i, j, id;
ffd_log("-------------------------------------------------------------------",
FFD_NORMAL);
ffd_log("write_cosim_parameter(): "
"Start to write the following cosimulation data to Modelica:",
FFD_NORMAL);
/****************************************************************************
| Wait if the previosu data has not been read by Modelica
****************************************************************************/
while(para->cosim->ffd->flag==1) {
ffd_log("write_cosim_data(): Wait since previosu data is not taken "
"by Modelica", FFD_NORMAL);
Sleep(1000);
}
/****************************************************************************
| Start to write new data
****************************************************************************/
para->cosim->ffd->t = para->mytime->t;
sprintf(msg, "write_cosim_data(): Start to write FFD data to Modelica "
"at t=%f[s]",
para->cosim->ffd->t);
ffd_log(msg, FFD_NORMAL);
/****************************************************************************
| Set the time and space averaged temperature of space
| Convert T from degC to K
****************************************************************************/
para->cosim->ffd->TRoo = average_volume(para, var, var[TEMPM]);
sprintf(msg, "\tAveraged room temperature %f[degC]", para->cosim->ffd->TRoo);
para->cosim->ffd->TRoo += 273.15;
ffd_log(msg, FFD_NORMAL);
/****************************************************************************
| Set temperature of shading devices
****************************************************************************/
if(para->cosim->para->sha==1) {
ffd_log("\tTemperature of the shade:", FFD_NORMAL);
for(i=0; i<para->cosim->para->nConExtWin; i++) {
//Note: The shade feature is to be implemented
para->cosim->ffd->TSha[i] = 20 + 273.15;
sprintf(msg, "\t\tSurface %d: %f[K]\n",
i, para->cosim->ffd->TSha[i]);
ffd_log(msg, FFD_NORMAL);
}
}
/****************************************************************************
| Set data for fluid ports
****************************************************************************/
ffd_log("\tFlow information at the ports:", FFD_NORMAL);
for(i=0; i<para->bc->nb_port; i++) {
// Get the corresponding ID in Modelica
id = para->bc->portId[i];
/*-------------------------------------------------------------------------
| Assign the temperature
-------------------------------------------------------------------------*/
para->cosim->ffd->TPor[id] = para->bc->TPortMean[i]/para->bc->APort[i]
+ 273.15;
sprintf(msg, "\t\t%s: TPor[%d]=%f",
para->cosim->para->portName[id], i,
para->cosim->ffd->TPor[id]);
ffd_log(msg, FFD_NORMAL);
/*-------------------------------------------------------------------------
| Assign the Xi
-------------------------------------------------------------------------*/
if(para->outp->version==DEBUG) {
sprintf(msg, "\t\t\tn_Xi=%d, id=%d", para->bc->nb_Xi, id);
ffd_log(msg, FFD_NORMAL);
}
for(j=0; j<para->bc->nb_Xi; j++) {
para->bc->velPortMean[i] = abs(para->bc->velPortMean[i]) + SMALL;
para->cosim->ffd->XiPor[id][j] = para->bc->XiPortMean[i][j]
/ para->bc->velPortMean[i];
sprintf(msg, "\t\t%s: Xi[%d]=%f",
para->cosim->para->portName[id], j,
para->cosim->ffd->XiPor[id][j]);
ffd_log(msg, FFD_NORMAL);
}
/*-------------------------------------------------------------------------
| Assign the C
-------------------------------------------------------------------------*/
for(j=0; j<para->bc->nb_C; j++) {
para->bc->velPortMean[i] = abs(para->bc->velPortMean[i]) + SMALL;
para->cosim->ffd->CPor[id][j] = para->bc->CPortMean[i][j]
/ para->bc->velPortMean[i];
sprintf(msg, "\t\t%s: C[%d]=%f",
para->cosim->para->portName[id], j,
para->cosim->ffd->CPor[id][j]);
ffd_log(msg, FFD_NORMAL);
}
}
/****************************************************************************
| Set data for solid surfaces
****************************************************************************/
ffd_log("\tInformation at solid surfaces:", FFD_NORMAL);
for(i=0; i<para->bc->nb_wall; i++) {
id = para->bc->wallId[i];
// Set the B.C. Temperature
if(para->cosim->para->bouCon[id]==2) {
para->cosim->ffd->temHea[id] = para->bc->temHeaMean[i]
/ para->bc->AWall[i] + 273.15;
sprintf(msg, "\t\t%s: %f[K]",
para->cosim->para->name[id], para->cosim->ffd->temHea[id]);
}
// Set the heat flux
else {
para->cosim->ffd->temHea[id] = para->bc->temHeaMean[i];
sprintf(msg, "\t\t%s: %f[W]",
para->cosim->para->name[id], para->cosim->ffd->temHea[id]);
}
ffd_log(msg, FFD_NORMAL);
}
/****************************************************************************
| Set data for sensors
****************************************************************************/
if (set_sensor_data(para, var)!=0) {
ffd_log("\tCould not get sensor data", FFD_ERROR);
return 1;
}
else
ffd_log("\tSensor Information:", FFD_NORMAL);
for(i=0; i<para->cosim->para->nSen; i++) {
para->cosim->ffd->senVal[i] = para->sens->senVal[i];
sprintf(msg, "\t\t%s: %f",
para->cosim->para->sensorName[i], para->cosim->ffd->senVal[i]);
ffd_log(msg, FFD_NORMAL);
}
/****************************************************************************
| Inform Modelica that the FFD data is updated
****************************************************************************/
para->cosim->ffd->flag = 1;
return 0;
} // End of write_cosim_data()
///////////////////////////////////////////////////////////////////////////////
/// FFD solver
///
///\param para Pointer to FFD parameters
///\param var Pointer to FFD simulation variables
///\param BINDEX Pointer to boundary index
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int FFD_solver(PARA_DATA *para, REAL **var, int **BINDEX) {
int step_total = para->mytime->step_total;
REAL t_steady = para->mytime->t_steady;
double t_cosim;
int flag, next;
if(para->solv->cosimulation == 1)
t_cosim = para->mytime->t + para->cosim->modelica->dt;
/***************************************************************************
| Solver Loop
***************************************************************************/
next = 1;
while(next==1) {
//-------------------------------------------------------------------------
// Integration
//-------------------------------------------------------------------------
flag = vel_step(para, var, BINDEX);
if(flag != 0) {
ffd_log("FFD_solver(): Could not solve velocity.", FFD_ERROR);
return flag;
}
else if(para->outp->version==DEBUG)
ffd_log("FFD_solver(): solved velocity step.", FFD_NORMAL);
flag = temp_step(para, var, BINDEX);
if(flag != 0) {
ffd_log("FFD_solver(): Could not solve temperature.", FFD_ERROR);
return flag;
}
else if(para->outp->version==DEBUG)
ffd_log("FFD_solver(): solved temperature step.", FFD_NORMAL);
flag = den_step(para, var, BINDEX);
if(flag != 0) {
ffd_log("FFD_solver(): Could not solve trace substance.", FFD_ERROR);
return flag;
}
else if(para->outp->version==DEBUG)
ffd_log("FFD_solver(): solved density step.", FFD_NORMAL);
timing(para);
//-------------------------------------------------------------------------
// Process for Cosimulation
//-------------------------------------------------------------------------
if(para->solv->cosimulation == 1) {
/*.......................................................................
| Conditon 1: If synchronization point is reached,
| Action: Do data exchange
.......................................................................*/
if(fabs(para->mytime->t - t_cosim)<SMALL) {
if(para->outp->version==DEBUG)
ffd_log("FFD_solver(): Cosimulation, reached synchronization point",
FFD_NORMAL);
// Average the FFD simulation data
flag = average_time(para, var);
if(flag != 0) {
ffd_log("FFD_solver(): Could not average the data over time.",
FFD_ERROR);
return flag;
}
// the data for cosimulation
flag = read_cosim_data(para, var, BINDEX);
if(flag != 0) {
ffd_log("FFD_solver(): Could not read cosimulation data.", FFD_ERROR);
return flag;
}
flag = write_cosim_data(para, var);
if(flag != 0) {
ffd_log("FFD_solver(): Could not write cosimulation data.", FFD_ERROR);
return flag;
}
sprintf(msg, "ffd_solver(): Synchronized data at t=%f[s]\n", para->mytime->t);
ffd_log(msg, FFD_NORMAL);
// Set the next synchronization time
t_cosim += para->cosim->modelica->dt;
// Reset all the averaged data to 0
flag = reset_time_averaged_data(para, var);
if(flag != 0) {
ffd_log("FFD_solver(): Could not reset averaged data.",
FFD_ERROR);
return flag;
}
/*.......................................................................
| Check if Modelica asks to stop the simulation
.......................................................................*/
if(para->cosim->para->flag==0) {
// Stop the solver
next = 0;
sprintf(msg,
"ffd_solver(): Received stop command from Modelica at "
"FFD time: %f[s], Modelica Time: %f[s].",
para->mytime->t, para->cosim->modelica->t);
if(para->mytime->t==para->cosim->modelica->t)
ffd_log(msg, FFD_NORMAL);
else
ffd_log(msg, FFD_WARNING);
}
continue;
} // End of Conditon 1
/*.......................................................................
| Conditon 2: synchronization point is not reached ,
| but already miss the synchronization point
| Action: Stop simulation
.......................................................................*/
else if(para->mytime->t-t_cosim>SMALL) {
sprintf(msg,
"ffd_solver(): Mis-matched synchronization step with "
"t_ffd=%f[s], t_cosim=%f[s], dt_syn=%f[s], dt_ffd=%f[s].",
para->mytime->t, t_cosim,
para->cosim->modelica->dt, para->mytime->dt);
ffd_log(msg, FFD_ERROR);
sprintf(msg, "para->mytime->t - t_cosim=%lf", para->mytime->t - t_cosim);
ffd_log(msg, FFD_ERROR);
return 1;
} // end of Conditon 2
/*.......................................................................
| Conditon 3: synchronization point is not reached
| and not miss the synchronization point
| Action: Do FFD internal simulation and add data for future average
.......................................................................*/
else {
if(para->outp->version==DEBUG)
ffd_log("FFD_solver(): Cosimulation, prepare next step for FFD",
FFD_NORMAL);
// Integrate the data on the boundary surface
flag = surface_integrate(para, var, BINDEX);
if(flag != 0) {
ffd_log("FFD_solver(): "
"Could not average the data on boundary.",
FFD_ERROR);
return flag;
}
else if (para->outp->version==DEBUG)
ffd_log("FFD_solver(): completed surface integration",
FFD_NORMAL);
flag = add_time_averaged_data(para, var);
if(flag != 0) {
ffd_log("FFD_solver(): "
"Could not add the averaged data.",
FFD_ERROR);
return flag;
}
else if (para->outp->version==DEBUG)
ffd_log("FFD_solver(): completed time average",
FFD_NORMAL);
} // End of Condition 3
} // End of cosimulation
//-------------------------------------------------------------------------
// Process for single simulation
//-------------------------------------------------------------------------
else {
if(para->outp->version==DEBUG)
ffd_log("FFD_solver(): Single Simulation, prepare for next time step",
FFD_NORMAL);
// Start to record data for calculating mean velocity if needed
if(para->mytime->t>t_steady && para->outp->cal_mean==0) {
para->outp->cal_mean = 1;
flag = reset_time_averaged_data(para, var);
if(flag != 0) {
ffd_log("FFD_solver(): Could not reset averaged data.",
FFD_ERROR);
return flag;
}
else
ffd_log("FFD_solver(): Start to calculate mean properties.",
FFD_NORMAL);
}
if(para->outp->cal_mean==1) {
flag = add_time_averaged_data(para, var);
if(flag != 0) {
ffd_log("FFD_solver(): Could not add the averaged data.",
FFD_ERROR);
return 1;
}
}
next = para->mytime->step_current < step_total ? 1 : 0;
}
} // End of While loop
return flag;
} // End of FFD_solver( )
///////////////////////////////////////////////////////////////////////////////
/// Compare the names of boundaries and store the relationship
///
///\param para Pointer to FFD parameters
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int compare_boundary_names(PARA_DATA *para) {
int i, j, flag;
char **name1 = para->cosim->para->name;
char **name2 = para->bc->wallName;
char **name3 = para->cosim->para->portName;
char **name4 = para->bc->portName;
/****************************************************************************
| Compare the names of solid surfaces
****************************************************************************/
for(i=0; i<para->cosim->para->nSur; i++) {
/*-------------------------------------------------------------------------
| Assume we do not find the name
-------------------------------------------------------------------------*/
flag = 1;
/*-------------------------------------------------------------------------
| Check the wall names in FFD
-------------------------------------------------------------------------*/
for(j=0; j<para->bc->nb_wall&&flag!=0; j++) {
flag = strcmp(name1[i], name2[j]);
// If found the name
if(flag==0) {
// If the same name has been found before
if(para->bc->wallId[j]>0) {
sprintf(msg, "compare_boundary_names(): Modelica has "
"the same name \"%s\" for two BCs.", name1[i]);
ffd_log(msg, FFD_ERROR);
return 1;
}
// If no same name has been found before, use it
else {
sprintf(msg,
"compare_boundary_names(): Matched boundary name \"%s\".",
name1[i]);
ffd_log(msg, FFD_NORMAL);
para->bc->wallId[j] = i;
}
} // End of if(flag==0)
} // End of for(j=0; j<para->bc->nb_wall&&flag!=0; j++)
/*-------------------------------------------------------------------------
| Stop if name is not found
-------------------------------------------------------------------------*/
if(flag!=0) {
sprintf(msg, "compare_boundary_names(): Could not find the Modelica "
" wall boundary \"%s\" in FFD.", name1[i]);
ffd_log(msg, FFD_ERROR);
return 1;
}
} // Next Modelica Wall name
/****************************************************************************
| Compare the names of fluid ports
****************************************************************************/
ffd_log("Start to compare port names", FFD_NORMAL);
for(i=0; i<para->cosim->para->nPorts; i++) {
/*-------------------------------------------------------------------------
| Assume we do not find the name
-------------------------------------------------------------------------*/
flag = 1;
sprintf(msg, "\tModelica: port[%d]=%s", i, name3[i]);
ffd_log(msg, FFD_NORMAL);
/*-------------------------------------------------------------------------
| Check the FFD inlet and outlet names
-------------------------------------------------------------------------*/
for(j=0; j<para->bc->nb_port&&flag!=0; j++) {
flag = strcmp(name3[i], name4[j]);
sprintf(msg, "\tFFD: port[%d]=%s", j, name4[j]);
ffd_log(msg, FFD_NORMAL);
// If found the name
if(flag==0) {
// If the same name has been found before
if(para->bc->portId[j]>0) {
sprintf(msg,
"compare_boundary_names(): Modelica has the same name \"%s\" for two BCs.",
name3[i]);
ffd_log(msg, FFD_ERROR);
return 1;
}
// If no same name has been found before, use it
else {
sprintf(msg,
"compare_boundary_names(): Matched boundary name \"%s\".",
name3[i]);
ffd_log(msg, FFD_NORMAL);
para->bc->portId[j] = i;
}
} // End of if(flag==0)
}
/*-------------------------------------------------------------------------
| Stop if name is not found
-------------------------------------------------------------------------*/
if(flag!=0) {
sprintf(msg, "compare_boundary_names(): Could not find"
"the Modelica fluid port boundary \"%s\" in FFD.", name3[i]);
ffd_log(msg, FFD_ERROR);
return 1;
}
} // Next Modelica port name
return 0;
} // End of compare_boundary_names()
///////////////////////////////////////////////////////////////////////////////
/// Write the data in a format for SCI program
///
///\param para Pointer to FFD parameters
///\param var Pointer to FFD simulation variables
///\param name Pointer to the filename
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int write_SCI(PARA_DATA *para, REAL **var, char *name) {
int i, j, k;
int IPR, IU, IV, IW, IT, IC1, IC2, IC3, IC4, IC5, IC6, IC7;
int imax=para->geom->imax, jmax=para->geom->jmax;
int kmax = para->geom->kmax;
int IMAX = imax+2, IJMAX = (imax+2)*(jmax+2);
int n = para->mytime->step_current;
REAL *x = var[X], *y = var[Y], *z =var[Z];
REAL *u = var[VX], *v = var[VY], *w = var[VZ], *p = var[IP];
REAL *um = var[VXM], *vm = var[VYM], *wm = var[VZM], *d = var[TRACE];
REAL *T = var[TEMP], *Tm = var[TEMPM];
REAL *tmp1 = var[TMP1], *tmp2 = var[TMP2], *tmp3 = var[TMP3];
char *filename;
FILE *dataFile;
/****************************************************************************
| Allocate memory for filename
| Length of filename should be sizeof(ActualName) + 1
| Using sizeof(ActualName) will cause memory fault in free(filename)
****************************************************************************/
filename = (char *) malloc((strlen(name)+5)*sizeof(char));
if(filename==NULL) {
ffd_log("write_SCI(): Failed to allocate memory for file name",
FFD_ERROR);
return 1;
}
strcpy(filename, name);
strcat(filename, ".cfd");
// Open output file
if((dataFile=fopen(filename,"w"))==NULL) {
sprintf(msg, "write_SCI(): Failed to open file %s.", filename);
ffd_log(msg, FFD_ERROR);
return 1;
}
/****************************************************************************
| Identify the output varaible: 1 Yes; 0 No.
| IPR: Pressure; IU,IV,IW: velocity in x,y,z direction;
| IT: Temperature; IC1,IC2,IC3,IC4,IC5,IC6,IC6: other scalars
****************************************************************************/
IPR = 1;
IU = 1;
IV = 1;
IW = 1;
IT = 1;
IC1 = 0;
IC2 = 0;
IC3 = 0;
IC4 = 0;
IC5 = 0;
IC6 = 0;
IC7 = 0;
/****************************************************************************
| Convert varaible value from cell surface to cell center
****************************************************************************/
for(j=0; j<=jmax+1; j++) {
for(k=0; k<=kmax+1; k++) {
u[IX(imax+1,j,k)] = u[IX(imax,j,k)];
um[IX(imax+1,j,k)] = um[IX(imax,j,k)];
for(i=imax; i>=1; i--) {
u[IX(i,j,k)] = (REAL) 0.5 * (u[IX(i,j,k)]+u[IX(i-1,j,k)]);
um[IX(i,j,k)] = (REAL) 0.5 * (um[IX(i,j,k)]+um[IX(i-1,j,k)]);
}
}
}
for(i=0; i<=imax+1; i++) {
for(k=0; k<=kmax+1; k++) {
v[IX(i,jmax+1,k)] = v[IX(i,jmax,k)];
vm[IX(i,jmax+1,k)] = vm[IX(i,jmax,k)];
for(j=jmax; j>=1; j--) {
v[IX(i,j,k)] = (REAL) 0.5 * (v[IX(i,j,k)]+v[IX(i,j-1,k)]);
vm[IX(i,j,k)] = (REAL) 0.5 * (vm[IX(i,j,k)]+vm[IX(i,j-1,k)]);
}
}
}
for(i=0; i<=imax+1; i++) {
for(j=0; j<=jmax+1; j++) {
w[IX(i,j,kmax+1)] = w[IX(i,j,kmax)];
wm[IX(i,j,kmax+1)] = wm[IX(i,j,kmax)];
for(k=kmax; k>=1; k--) {
w[IX(i,j,k)] = (REAL) 0.5 * (w[IX(i,j,k)]+w[IX(i,j,k-1)]);
wm[IX(i,j,k)] = (REAL) 0.5 * (wm[IX(i,j,k)]+wm[IX(i,j,k-1)]);
}
}
}
/****************************************************************************
| Compute pressure value for the cornor of the domian
****************************************************************************/
//W-S-B
p[IX(0,0,0)] = (p[IX(0,1,0)]+p[IX(1,0,0)]+p[IX(0,0,1)]) / (REAL) 3.0;
//W-N-B
p[IX(0,jmax+1,0)] = ( p[IX(1,jmax+1,0)]+p[IX(0,jmax,0)]
+p[IX(0,jmax+1,1)]) / (REAL) 3.0;
//E-S-B
p[IX(imax+1,0,0)] = ( p[IX(imax,0,0)]+p[IX(imax+1,1,0)]
+p[IX(imax+1,0,1)]) / (REAL) 3.0;
//E-N-B
p[IX(imax+1,jmax+1,0)] = ( p[IX(imax,jmax+1,0)]+p[IX(imax+1,jmax,0)]
+p[IX(imax+1,jmax+1,1)]) / (REAL) 3.0;
//W-S-F
p[IX(0,0,kmax+1)] = ( p[IX(0,1,kmax+1)]+p[IX(1,0,kmax+1)]
+p[IX(0,0,kmax)]) / (REAL) 3.0;
//W-N-F
p[IX(0,jmax+1,kmax+1)] = ( p[IX(1,jmax+1,kmax+1)]+p[IX(0,jmax,kmax+1)]
+p[IX(0,jmax+1,kmax)]) / (REAL) 3.0;
//E-S-F
p[IX(imax+1,0,kmax+1)] = ( p[IX(imax,0,kmax+1)]+p[IX(imax+1,1,kmax+1)]
+p[IX(imax+1,0,kmax)]) / (REAL) 3.0;
//E-N-F
p[IX(imax+1,jmax+1,kmax+1)] = ( p[IX(imax,jmax+1,0)]+p[IX(imax+1,jmax,0)]
+p[IX(imax+1,jmax+1,kmax)]) / (REAL) 3.0;
/****************************************************************************
| Output domain length in x, y, z direction
****************************************************************************/
fprintf(dataFile, "%e\t%e\t%e\n", para->geom->Lx, para->geom->Ly, para->geom->Lz);
/****************************************************************************
| Output maximum cell number in x, y, z direction
****************************************************************************/
fprintf(dataFile, "%d\t%d\t%d\n", imax, jmax, kmax);
/****************************************************************************
| Output the varaibles needs to be exported
****************************************************************************/
fprintf(dataFile, "%d\t%d\t%d\t%d\t%d\t%d\n", IPR, IU, IV, IW, IT, IC1);
fprintf(dataFile, "%d\t%d\t%d\t%d\t%d\t%d\n", IC2, IC3, IC4, IC5, IC6, IC7);
/****************************************************************************
| Output the cooridates of cell center in x, y, z direction
****************************************************************************/
for(i=1; i<=imax; i++)
fprintf(dataFile, "%e\t", x[IX(i,j,k)]);
fprintf(dataFile, "\n");
for(j=1; j<=jmax; j++)
fprintf(dataFile, "%e\t", y[IX(i,j,k)]);
fprintf(dataFile, "\n");
for(k=1; k<=kmax; k++)
fprintf(dataFile, "%e\t", z[IX(i,j,k)]);
fprintf(dataFile, "\n");
/****************************************************************************
| Output the variables
| p: Pressure
| U: Velocity in X direction
| V: Velocity in Y direction
| W: Velocity in Z direction
| T: Temperature
****************************************************************************/
for(j=1; j<=jmax; j++)
for(i=1; i<=imax; i++) {
fprintf(dataFile, "%d\t%d\n", i,j);
if(IPR==1) {
for(k=1; k<=kmax; k++)
fprintf(dataFile, "%e\t", p[IX(i,j,k)]);
fprintf(dataFile, "\n");
}
if(IU==1) {
for(k=1; k<=kmax; k++)
fprintf(dataFile, "%e\t", u[IX(i,j,k)]);
fprintf(dataFile, "\n");
}
if(IV==1) {
for(k=1; k<=kmax; k++)
fprintf(dataFile, "%e\t", v[IX(i,j,k)]);
fprintf(dataFile, "\n");
}
if(IW==1) {
for(k=1; k<=kmax; k++)
fprintf(dataFile, "%e\t", w[IX(i,j,k)]);
fprintf(dataFile, "\n");
}
if(IT==1) {
for(k=1; k<=kmax; k++)
fprintf(dataFile, "%e\t", T[IX(i,j,k)]);
fprintf(dataFile, "\n");
}
for(k=1; k<=kmax; k++)
fprintf(dataFile, "%e\t", T[IX(i,j,k)]);
fprintf(dataFile, "\n");
// Extra line because SCI reads turbulence intensity data
}
fclose(dataFile);
sprintf(msg, "wrtie_SCI(): Wrote the SCI data file %s.", filename);
ffd_log(msg, FFD_NORMAL);
free(filename);
return 0;
} // End of write_SCI()
///////////////////////////////////////////////////////////////////////////////
/// Assign the Modelica solid surface thermal boundary condition data to FFD
///
///\param para Pointer to FFD parameters
///\param var Pointer to the FFD simulaiton variables
///\param BINDEX Pointer to boundary index
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int assign_thermal_bc(PARA_DATA *para, REAL **var, int **BINDEX) {
int i, j, k, it, id, modelicaId;
int imax = para->geom->imax, jmax = para->geom->jmax,
kmax = para->geom->kmax;
int IMAX = imax+2, IJMAX = (imax+2)*(jmax+2);
REAL sensibleHeat=para->cosim->modelica->sensibleHeat;
REAL latentHeat=para->cosim->modelica->latentHeat;
REAL *temHea, celVol;
/****************************************************************************
| Assign the boundary conditon if there is a solid surface
****************************************************************************/
if(para->bc->nb_wall>0) {
ffd_log("assign_thermal_bc(): Thermal conditions for solid surfaces:",
FFD_NORMAL);
temHea = (REAL *) malloc(para->bc->nb_wall*sizeof(REAL));
if(temHea==NULL) {
ffd_log("assign_thermal_bc(): Could not allocate memory for temHea.",
FFD_ERROR);
return 1;
}
//-------------------------------------------------------------------------
// Convert the data from Modelica order to FFD order
//-------------------------------------------------------------------------
for(j=0; j<para->bc->nb_wall; j++) {
i = para->bc->wallId[j];
switch(para->cosim->para->bouCon[i]) {
case 1: // Temperature
temHea[j] = para->cosim->modelica->temHea[i] - 273.15;
sprintf(msg, "\t%s: T=%f[degC]",
para->bc->wallName[j], temHea[j]);
ffd_log(msg, FFD_NORMAL);
break;
case 2: // Heat flow rate
temHea[j] = para->cosim->modelica->temHea[i] / para->bc->AWall[j];
sprintf(msg, "\t%s: Q_dot=%f[W/m2]",
para->bc->wallName[j], temHea[j]);
ffd_log(msg, FFD_NORMAL);
break;
default:
sprintf(msg,
"Invalid value (%d) for thermal boundary condition. "
"Expected value are 1->Fixed T; 2->Fixed heat flux",
para->cosim->para->bouCon[i]);
ffd_log(msg, FFD_ERROR);
return 1;
}
}
//-------------------------------------------------------------------------
// Assign the BC
//-------------------------------------------------------------------------
for(it=0; it<para->geom->index; it++) {
i = BINDEX[0][it];
j = BINDEX[1][it];
k = BINDEX[2][it];
id = BINDEX[4][it];
modelicaId = para->bc->wallId[id];
if(var[FLAGP][IX(i,j,k)]==SOLID)
switch(para->cosim->para->bouCon[modelicaId]) {
case 1:
var[TEMPBC][IX(i,j,k)] = temHea[id];
BINDEX[3][it] = 1; // Specified temperature
break;
case 2:
var[QFLUXBC][IX(i,j,k)] = temHea[id];
BINDEX[3][it] = 0; // Specified heat flux
break;
default:
sprintf(msg,
"assign_thermal_bc(): Thermal bc value BINDEX[3][%d]=%d "
"at [%d,%d,%d] was not valid.",
it, BINDEX[3][it], i, j, k);
ffd_log(msg, FFD_ERROR);
return 1;
} // End of switch(BINDEX[3][it])
}
free(temHea);
} // End of if(para->bc->nb_wall>0)
/****************************************************************************
| No action since there is not a solid surface
****************************************************************************/
else
ffd_log("assign_thermal_bc(): No solid surfaces:", FFD_NORMAL);
/****************************************************************************
| Calculate heat injected into the space
****************************************************************************/
sprintf(msg, "Convective sensible heat received by FFD is %f",
sensibleHeat);
ffd_log(msg, FFD_NORMAL);
FOR_EACH_CELL
if (var[FLAGP][IX(i,j,k)]==FLUID){
celVol = vol(para, var, i, j, k);
var[TEMPS][IX(i,j,k)] = sensibleHeat * celVol / para->geom->volFlu;
}
END_FOR
/****************************************************************************
| Data received, but not used in current version
****************************************************************************/
sprintf(msg, "Latent heat received by FFD is %f",
latentHeat);
ffd_log(msg, FFD_NORMAL);
return 0;
} // End of assign_thermal_bc()
///////////////////////////////////////////////////////////////////////////////
/// Write standard output data in a format for tecplot
///
///\param para Pointer to FFD parameters
///\param var Pointer to FFD simulation variables
///\param name Pointer to file name
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int write_tecplot_data(PARA_DATA *para, REAL **var, char *name) {
int i, j, k;
int imax=para->geom->imax, jmax=para->geom->jmax;
int kmax = para->geom->kmax;
int IMAX = imax+2, IJMAX = (imax+2)*(jmax+2);
REAL *x = var[X], *y = var[Y], *z =var[Z];
REAL *u = var[VX], *v = var[VY], *w = var[VZ], *p = var[IP];
REAL *d = var[TRACE];
REAL *T = var[TEMP];
REAL *flagp = var[FLAGP];
char *filename;
FILE *datafile;
/****************************************************************************
| Allocate memory for filename
| Length of filename should be sizeof(ActualName) + 1
| Using sizeof(ActualName) will cause memory fault in free(filename)
****************************************************************************/
filename = (char *) malloc((strlen(name)+5)*sizeof(char));
if(filename==NULL) {
ffd_log("write_tecplot_data(): Failed to allocate memory for file name",
FFD_ERROR);
return 1;
}
strcpy(filename, name);
strcat(filename, ".plt");
// Open output file
if((datafile=fopen(filename, "w"))==NULL) {
ffd_log("write_tecplot_data(): Failed to open output file!\n", FFD_ERROR);
return 1;
}
convert_to_tecplot(para, var);
fprintf(datafile, "TITLE = ");
fprintf(datafile, "\"dt=%fs, t=%fs, nu=%f, Lx=%f, Ly=%f, Lz=%f, ",
para->mytime->dt, para->mytime->t, para->prob->nu,
para->geom->Lx, para->geom->Ly, para->geom->Lz);
fprintf(datafile, "Nx=%d, Ny=%d, Nz=%d \"\n",
imax+2, jmax+2, kmax+2);
fprintf( datafile,
"VARIABLES =X, Y, Z, I, J, K, U, V, W, T, fu, fv \n");
fprintf( datafile, "ZONE F=POINT, I=%d, J=%d, K=%d\n", imax+2, jmax+2, kmax+2 );
FOR_ALL_CELL
fprintf(datafile, "%f\t%f\t%f\t%d\t%d\t%d\t",
x[IX(i,j,k)], y[IX(i,j,k)], z[IX(i,j,k)], i, j, k);
fprintf(datafile, "%f\t%f\t%f\t%f\t%f\t%f\n",
u[IX(i,j,k)], v[IX(i,j,k)], w[IX(i,j,k)], T[IX(i,j,k)],
flagp[IX(i,j,k)], p[IX(i,j,k)]);
END_FOR
sprintf(msg, "write_tecplot_data(): Wrote file %s.", filename);
ffd_log(msg, FFD_NORMAL);
free(filename);
fclose(datafile);
return 0;
} //write_tecplot_data()
///////////////////////////////////////////////////////////////////////////////
/// Write all available data in a format for tecplot
///
///\param para Pointer to FFD parameters
///\param var Pointer to FFD simulation variables
///\param name Pointer to file name
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int write_tecplot_all_data(PARA_DATA *para, REAL **var, char *name) {
int i, j, k;
int imax=para->geom->imax, jmax=para->geom->jmax;
int kmax = para->geom->kmax;
int IMAX = imax+2, IJMAX = (imax+2)*(jmax+2);
REAL *x = var[X], *y = var[Y], *z =var[Z];
char *filename;
FILE *dataFile;
/****************************************************************************
| Allocate memory for filename
| Length of filename should be sizeof(ActualName) + 1
| Using sizeof(ActualName) will cause memory fault in free(filename)
****************************************************************************/
filename = (char *) malloc((strlen(name)+5)*sizeof(char));
if(filename==NULL) {
ffd_log("write_tecplot_all_data(): Failed to allocate memory for file name",
FFD_ERROR);
return 1;
}
strcpy(filename, name);
strcat(filename, ".plt");
// Open output file
if((dataFile=fopen(filename,"w"))==NULL) {
sprintf(msg, "write_tecplot_data(): Failed to open output file %s.", filename);
ffd_log(msg, FFD_ERROR);
return 1;
}
convert_to_tecplot(para, var);
fprintf(dataFile, "TITLE = ");
// Print simulation, diemension and mesh information
fprintf(dataFile, "\"dt=%fs, t=%fs, nu=%f, Lx=%d, Ly=%d, Lz%d, ",
para->mytime->dt, para->mytime->t, para->prob->nu,
para->geom->Lx, para->geom->Ly, para->geom->Lz);
fprintf(dataFile, "Nx=%d, Ny=%d, Nz=%d \"\n", imax+2, jmax+2, kmax+2);
// Print variables
fprintf(dataFile, "VARIABLES = X, Y, Z, I, J, K, ");
fprintf(dataFile, "U, V, W, UM, VM, WM, US, VS, WS, ");
fprintf(dataFile, "P, ");
fprintf(dataFile, "T, TM, TS, ");
fprintf(dataFile, "GX, GY, GZ, ");
fprintf(dataFile, "FLAGU, FLAGV, FLAGW, FLAGP, ");
fprintf(dataFile, "VXBC, VYBC, VZBV, TEMPBC, ");
fprintf(dataFile, "QFLUX, QFLUXBC, ");
fprintf(dataFile, "AP, AN, AS, AW, AE, AF, AB, B, AP0, PP");
fprintf(dataFile, "\n");
fprintf(dataFile, "ZONE F=POINT, I=%d, J=%d, K=%d\n", imax+2, jmax+2, kmax+2 );
FOR_ALL_CELL
// Coordinates
fprintf(dataFile, "%f\t%f\t%f\t%d\t%d\t%d\t",
x[IX(i,j,k)], y[IX(i,j,k)], z[IX(i,j,k)], i, j, k);
// Velocities
fprintf(dataFile, "%f\t%f\t%f\t%f\t%f\t%f\t%f\t%f\t%f\t",
var[VX][IX(i,j,k)], var[VY][IX(i,j,k)], var[VZ][IX(i,j,k)],
var[VXM][IX(i,j,k)], var[VYM][IX(i,j,k)], var[VZM][IX(i,j,k)],
var[VXS][IX(i,j,k)], var[VYS][IX(i,j,k)], var[VZS][IX(i,j,k)]);
// Pressure
fprintf(dataFile, "%f\t", var[IP][IX(i,j,k)]);
// Temperature
fprintf(dataFile, "%f\t%f\t%f\t",
var[TEMP][IX(i,j,k)], var[TEMPM][IX(i,j,k)],
var[TEMPS][IX(i,j,k)]);
// Gravity
fprintf(dataFile, "%f\t%f\t%f\t",
var[GX][IX(i,j,k)], var[GY][IX(i,j,k)], var[GZ][IX(i,j,k)]);
// Flags for simulaiton
fprintf(dataFile, "%f\t%f\t%f\t%f\t",
var[FLAGU][IX(i,j,k)], var[FLAGV][IX(i,j,k)],
var[FLAGW][IX(i,j,k)], var[FLAGP][IX(i,j,k)]);
// Boundary conditions
fprintf(dataFile, "%f\t%f\t%f\t%f\t",
var[VXBC][IX(i,j,k)], var[VYBC][IX(i,j,k)],
var[VZBC][IX(i,j,k)], var[TEMPBC][IX(i,j,k)]);
// Heat flux
fprintf(dataFile, "%f\t%f\t",
var[QFLUX][IX(i,j,k)], var[QFLUXBC][IX(i,j,k)]);
// Coefficients
fprintf(dataFile, "%f\t%f\t%f\t%f\t%f\t%f\t%f\t%f\t%f\t%f\n",
var[AP][IX(i,j,k)], var[AN][IX(i,j,k)], var[AS][IX(i,j,k)],
var[AW][IX(i,j,k)], var[AE][IX(i,j,k)], var[AF][IX(i,j,k)],
var[AB][IX(i,j,k)], var[B][IX(i,j,k)], var[AP0][IX(i,j,k)],
var[PP][IX(i,j,k)]);
END_FOR
fclose(dataFile);
sprintf(msg, "write_tecplot_all_data(): Wrote file %s.", filename);
ffd_log(msg, FFD_NORMAL);
free(filename);
return 0;
} //write_tecplot_all_data()
///////////////////////////////////////////////////////////////////////////////
/// Assign the Modelica inlet and outlet boundary condition data to FFD
///
/// The inlet and outlet boundaries are not fixed and they can change during
/// the simulation. The reason is that the Modelica uses acausal modeling
/// and the flow direction can change during the simulation depending on the
/// pressure difference. As a result, the FFD has to change its inlet and outlet
/// boundry condition accordingly. The inlet or outlet boundary is decided
/// according to the flow rate para->cosim->modelica->mFloRarPor. The port is
/// inlet if mFloRarPor>0 and outlet if mFloRarPor<0. We will need to reset the
/// var[FLAGP][IX(i,j,k)] to apply the change of boundary conditions.
///
///\param para Pointer to FFD parameters
///\param var Pointer to the FFD simulaiton variables
///\param BINDEX Pointer to boundary index
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int assign_port_bc(PARA_DATA *para, REAL **var, int **BINDEX) {
int i, j, k, id, it, Xid, Cid;
int imax = para->geom->imax, jmax = para->geom->jmax;
int kmax = para->geom->kmax;
int IMAX = imax+2, IJMAX = (imax+2)*(jmax+2);
ffd_log("assign_port_bc():", FFD_NORMAL);
/****************************************************************************
| Convert the data from Modelica to FFD for the Inlet
****************************************************************************/
for(j=0; j<para->bc->nb_port; j++) {
i = para->bc->portId[j];
/*-------------------------------------------------------------------------
| Convert for mass flow rate and temperature
-------------------------------------------------------------------------*/
para->bc->velPort[j] = para->cosim->modelica->mFloRatPor[i]
/ (para->prob->rho*para->bc->APort[j]);
para->bc->TPort[j] = para->cosim->modelica->TPor[i] - 273.15;
sprintf(msg, "\t%s: vel=%f[m/s], T=%f[degC]",
para->bc->portName[j], para->bc->velPort[j],
para->bc->TPort[j]);
ffd_log(msg, FFD_NORMAL);
/*-------------------------------------------------------------------------
| Convert nXi types of species
-------------------------------------------------------------------------*/
for(Xid=0; Xid<para->cosim->para->nXi; Xid++) {
para->bc->XiPort[j][Xid] = para->cosim->modelica->XiPor[i][Xid];
sprintf(msg, "\tXi[%d]=%f", Xid, para->bc->XiPort[j][Xid]);
ffd_log(msg, FFD_NORMAL);
}
/*-------------------------------------------------------------------------
| Convert nC types of trace substances
-------------------------------------------------------------------------*/
for(Cid=0; Cid<para->cosim->para->nC; Cid++) {
para->bc->CPort[j][Cid] = para->cosim->modelica->CPor[i][Cid];
sprintf(msg, "\tC[%d]=%f", Cid, para->bc->CPort[j][Cid]);
ffd_log(msg, FFD_NORMAL);
}
}
/****************************************************************************
| Assign the BC
****************************************************************************/
for(it=0; it<para->geom->index; it++) {
i = BINDEX[0][it];
j = BINDEX[1][it];
k = BINDEX[2][it];
id = BINDEX[4][it];
/*-------------------------------------------------------------------------
| Only treat those inlet and outlet boundaries
-------------------------------------------------------------------------*/
if(var[FLAGP][IX(i,j,k)]==INLET || var[FLAGP][IX(i,j,k)]==OUTLET) {
// Set it to inlet if the flow velocity is positive or equal to 0
if(para->bc->velPort[id]>=0) {
var[FLAGP][IX(i,j,k)] = INLET;
var[TEMPBC][IX(i,j,k)] = para->bc->TPort[id];
for(Xid=0; Xid<para->cosim->para->nXi; Xid++)
var[Xi1BC+Xid][IX(i,j,k)] = para->bc->XiPort[id][Xid];
for(Cid=0; Cid<para->cosim->para->nC; Cid++)
var[C1BC+Cid][IX(i,j,k)] = para->bc->CPort[id][Cid];
if(i==0)
var[VXBC][IX(i,j,k)] = para->bc->velPort[id];
else if(i==imax+1)
var[VXBC][IX(i,j,k)] = -para->bc->velPort[id];
if(j==0)
var[VYBC][IX(i,j,k)] = para->bc->velPort[id];
else if(j==jmax+1)
var[VYBC][IX(i,j,k)] = -para->bc->velPort[id];
if(k==0)
var[VZBC][IX(i,j,k)] = para->bc->velPort[id];
else if(k==kmax+1)
var[VZBC][IX(i,j,k)] = -para->bc->velPort[id];
}
// Set it to outlet if the flow velocity is negative
else
var[FLAGP][IX(i,j,k)] = OUTLET;
}
}
return 0;
} // End of assign_inlet_outlet_bc()
///////////////////////////////////////////////////////////////////////////////
/// Integrate the cosimulation exchange data over the surfaces
///
/// Fluid port:
/// - T/Xi/C: sum(u*T*dA)
/// - m_dot: sum(u*dA)
///
/// Solid Surface Boundary:
/// - T: sum(T*dA)
/// - Q_dot: sum(q_dot*dA)
///
///\param para Pointer to FFD parameters
///\param var Pointer to FFD simulation variables
///\param BINDEX Pointer to the boundary index
///
///\return 0 if no error occurred
///////////////////////////////////////////////////////////////////////////////
int surface_integrate(PARA_DATA *para, REAL **var, int **BINDEX) {
int imax = para->geom->imax, jmax = para->geom->jmax;
int kmax = para->geom->kmax;
int i, j, k, it, bcid;
int IMAX = imax+2, IJMAX = (imax+2)*(jmax+2);
REAL vel_tmp, A_tmp;
/****************************************************************************
| Set the variable to 0
****************************************************************************/
if(para->outp->version==DEBUG)
ffd_log("surface_integrate(): Start to set the variable to 0",
FFD_NORMAL);
for(i=0; i<para->bc->nb_wall; i++)
para->bc->temHeaAve[i] = 0;
for(i=0; i<para->bc->nb_port; i++) {
para->bc->TPortAve[i] = 0;
para->bc->velPortAve[i] = 0;
for(j=0; j<para->bc->nb_Xi; j++)
para->bc->XiPortAve[i][j] = 0;
for(j=0; j<para->bc->nb_C; j++)
para->bc->CPortAve[i][j] = 0;
}
/****************************************************************************
| Go through all the boundary cells
****************************************************************************/
if(para->outp->version==DEBUG)
ffd_log("surface_integrate(): Start to sum all the cells", FFD_NORMAL);
for(it=0; it<para->geom->index; it++) {
i = BINDEX[0][it];
j = BINDEX[1][it];
k = BINDEX[2][it];
bcid = BINDEX[4][it];
if(i==0 || i==imax+1) {
vel_tmp = var[VX][IX(i,j,k)];
A_tmp = area_yz(para, var, i, j, k);
}
else if(j==0 || j==jmax+1) {
vel_tmp = var[VY][IX(i,j,k)];
A_tmp = area_zx(para, var, i, j, k);
}
else if(k==0 || k==kmax+1) {
vel_tmp = var[VZ][IX(i,j,k)];
A_tmp = area_xy(para, var, i, j, k);
}
/*-------------------------------------------------------------------------
| Set the thermal conditions data for Modelica.
| In FFD simulation, the BINDEX[3][it] indicates: 1->T, 0->Heat Flux.
| Those BINDEX[3][it] will be reset according to the Modelica data
| para->comsim->para->bouCon (1->Heat Flux, 2->T).
| Here is to give the Modelica the missing data (For instance, if Modelica
| send FFD Temperature, FFD should then send Modelica Heat Flux).
-------------------------------------------------------------------------*/
/*-------------------------------------------------------------------------
| Solid Wall
--------------------------------------------------------------------------*/
if(var[FLAGP][IX(i,j,k)]==SOLID) {
switch(BINDEX[3][it]) {
// FFD uses heat flux as BC to compute temperature
// Then send Modelica the tempearture
case 0:
para->bc->temHeaAve[bcid] += var[TEMP][IX(i,j,k)] * A_tmp;
break;
// FFD uses temperature as BC to compute heat flux
// Then send Modelica the heat flux
case 1:
para->bc->temHeaAve[bcid] += var[QFLUX][IX(i,j,k)] * A_tmp;
//sprintf(msg, "Cell(%d,%d,%d):\tQFLUX=%f,\tA=%f", i,j,k,var[QFLUX][IX(i,j,k)], A_tmp);
//ffd_log(msg, FFD_NORMAL);
break;
default:
sprintf(msg, "average_bc_area(): Thermal boundary (%d)"
"for cell (%d,%d,%d) was not defined",
BINDEX[3][it], i, j, k);
ffd_log(msg, FFD_ERROR);
return 1;
}
}
/*-------------------------------------------------------------------------
| Outlet
-------------------------------------------------------------------------*/
else if(var[FLAGP][IX(i,j,k)]==OUTLET) {
if(para->outp->version==DEBUG) {
sprintf(msg, "surface_integrate(): Set the outlet[%d, %d, %d]",
i, j, k);
ffd_log(msg, FFD_NORMAL);
}
para->bc->TPortAve[bcid] += var[TEMP][IX(i,j,k)] * A_tmp;
para->bc->velPortAve[bcid] += vel_tmp * A_tmp;
for(j=0; j<para->bc->nb_Xi; j++)
para->bc->XiPortAve[bcid][j] += var[Xi1+j][IX(i,j,k)] * A_tmp;
for(j=0; j<para->bc->nb_C; j++)
para->bc->CPortAve[bcid][j] += var[C1+j][IX(i,j,k)] * A_tmp;
}
/*-------------------------------------------------------------------------
| Inlet
-------------------------------------------------------------------------*/
else if(var[FLAGP][IX(i,j,k)]==INLET) {
if(para->outp->version==DEBUG) {
sprintf(msg, "surface_integrate(): Set 0 for inlet [%d,%d,%d].",
i, j, k);
ffd_log(msg, FFD_NORMAL);
}
para->bc->TPortAve[bcid] = 0;
para->bc->velPortAve[bcid] = 0;
for(j=0; j<para->bc->nb_Xi; j++)
para->bc->XiPortAve[bcid][j] = 0;
for(j=0; j<para->bc->nb_C; j++)
para->bc->CPortAve[bcid][j] = 0;
}
} // End of for(it=0; it<para->geom->index; it++)
return 0;
} // End of surface_integrate()