BCPressureData *NewBCPressureData()
{
BCPressureData *bc_pressure_data;
bc_pressure_data = ctalloc(BCPressureData, 1);
BCPressureDataNumPhases(bc_pressure_data) = 0;
BCPressureDataNumPatches(bc_pressure_data) = -1;
BCPressureDataTypes(bc_pressure_data) = NULL;
BCPressureDataCycleNumbers(bc_pressure_data) = NULL;
BCPressureDataPatchIndexes(bc_pressure_data) = NULL;
BCPressureDataBCTypes(bc_pressure_data) = NULL;
BCPressureDataValues(bc_pressure_data) = NULL;
return bc_pressure_data;
}
void LBInitializeBC(
Lattice * lattice,
Problem * problem,
ProblemData *problem_data)
{
/*------------------------------------------------------------*
* Local variables
*------------------------------------------------------------*/
/* Lattice variables */
Grid *grid = (lattice->grid);
Vector *pressure = (lattice->pressure);
Vector *perm = (lattice->perm);
CharVector *cellType = (lattice->cellType);
double time = (lattice->t);
/* Structures */
BCPressureData *bc_pressure_data = ProblemDataBCPressureData(problem_data);
TimeCycleData *time_cycle_data;
SubgridArray *subgrids = GridSubgrids(grid);
GrGeomSolid *gr_domain;
/* Patch variables */
double ***values;
double *patch_values = NULL;
int *fdir;
/* Grid parameters */
Subgrid *subgrid;
int nx, ny, nz;
int ix, iy, iz;
int nx_v, ny_v, nz_v;
/* Indices and counters */
int num_patches;
int num_phases;
int ipatch, is, i, j, k, ival;
int cycle_number, interval_number;
int r;
/* Physical variables and coefficients */
Subvector *sub_p;
double *pp;
Subvector *sub_perm;
double *permp;
Subcharvector *sub_cellType;
char *cellTypep;
double rho_g;
/* Communications */
VectorUpdateCommHandle *handle;
/*--------------------------
* Initializations
*--------------------------*/
rho_g = ProblemGravity(problem) * RHO;
num_patches = BCPressureDataNumPatches(bc_pressure_data);
gr_domain = ProblemDataGrDomain(problem_data);
num_phases = BCPressureDataNumPhases(bc_pressure_data);
if (num_patches > 0)
{
time_cycle_data = BCPressureDataTimeCycleData(bc_pressure_data);
values = ctalloc(double **, num_patches);
for (ipatch = 0; ipatch < num_patches; ipatch++)
{
values[ipatch] = ctalloc(double *, SubgridArraySize(subgrids));
cycle_number = BCPressureDataCycleNumber(bc_pressure_data, ipatch);
interval_number = TimeCycleDataComputeIntervalNumber(problem, time,
time_cycle_data, cycle_number);
switch (BCPressureDataType(bc_pressure_data, ipatch))
{
case 0:
{
BCPressureType0 *bc_pressure_type0;
GeomSolid *ref_solid;
double z, dz2;
double **elevations;
int ref_patch, iel;
bc_pressure_type0 = (BCPressureType0*)BCPressureDataIntervalValue(
bc_pressure_data, ipatch, interval_number);
ref_solid = ProblemDataSolid(problem_data,
BCPressureType0RefSolid(bc_pressure_type0));
ref_patch = BCPressureType0RefPatch(bc_pressure_type0);
/* Calculate elevations at (x,y) points on reference patch. */
elevations = CalcElevations(ref_solid, ref_patch, subgrids, problem_data);
ForSubgridI(is, subgrids)
{
/* subgrid = GridSubgrid(grid, is); */
subgrid = SubgridArraySubgrid(subgrids, is);
sub_p = VectorSubvector(pressure, is);
sub_perm = VectorSubvector(perm, is);
sub_cellType = CharVectorSubcharvector(cellType, is);
nx = SubgridNX(subgrid);
ny = SubgridNY(subgrid);
nz = SubgridNZ(subgrid);
ix = SubgridIX(subgrid);
iy = SubgridIY(subgrid);
iz = SubgridIZ(subgrid);
/* RDF: assume resolution is the same in all 3 directions */
r = SubgridRX(subgrid);
pp = SubvectorData(sub_p);
permp = SubvectorData(sub_perm);
cellTypep = SubcharvectorData(sub_cellType);
nx_v = SubvectorNX(sub_p);
ny_v = SubvectorNY(sub_p);
nz_v = SubvectorNZ(sub_p);
values[ipatch][is] = patch_values;
dz2 = RealSpaceDZ(0) / 2.0;
GrGeomPatchLoop(i, j, k, fdir, gr_domain, ipatch,
r, ix, iy, iz, nx, ny, nz,
{
ival = SubvectorEltIndex(sub_p, i, j, k);
iel = (i - ix) + (j - iy) * nx;
z = RealSpaceZ(k, 0) + fdir[2] * dz2;
pp[ival] = BCPressureType0Value(bc_pressure_type0)
- rho_g * (z - elevations[is][iel]);
cellTypep[ival] = 0;
});
tfree(elevations[is]);
} /* End subgrid loop */
tfree(elevations);
break;
}
case 1:
{
BCPressureType1 *bc_pressure_type1;
int num_points;
double x, y, z, dx2, dy2, dz2;
double unitx, unity, line_min, line_length, xy, slope;
int ip;
bc_pressure_type1 = (BCPressureType1*)BCPressureDataIntervalValue(bc_pressure_data, ipatch, interval_number);
ForSubgridI(is, subgrids)
{
/* subgrid = GridSubgrid(grid, is); */
subgrid = SubgridArraySubgrid(subgrids, is);
sub_p = VectorSubvector(pressure, is);
sub_perm = VectorSubvector(perm, is);
sub_cellType = CharVectorSubcharvector(cellType, is);
nx = SubgridNX(subgrid);
ny = SubgridNY(subgrid);
nz = SubgridNZ(subgrid);
ix = SubgridIX(subgrid);
iy = SubgridIY(subgrid);
iz = SubgridIZ(subgrid);
/* RDF: assume resolution is the same in all 3 directions */
r = SubgridRX(subgrid);
pp = SubvectorData(sub_p);
permp = SubvectorData(sub_perm);
cellTypep = SubcharvectorData(sub_cellType);
nx_v = SubvectorNX(sub_p);
ny_v = SubvectorNY(sub_p);
nz_v = SubvectorNZ(sub_p);
values[ipatch][is] = patch_values;
dx2 = RealSpaceDX(0) / 2.0;
dy2 = RealSpaceDY(0) / 2.0;
dz2 = RealSpaceDZ(0) / 2.0;
/* compute unit direction vector for piecewise linear line */
unitx = BCPressureType1XUpper(bc_pressure_type1) - BCPressureType1XLower(bc_pressure_type1);
unity = BCPressureType1YUpper(bc_pressure_type1) - BCPressureType1YLower(bc_pressure_type1);
line_length = sqrt(unitx * unitx + unity * unity);
unitx /= line_length;
unity /= line_length;
line_min = BCPressureType1XLower(bc_pressure_type1) * unitx
+ BCPressureType1YLower(bc_pressure_type1) * unity;
GrGeomPatchLoop(i, j, k, fdir, gr_domain, ipatch,
r, ix, iy, iz, nx, ny, nz,
{
ival = SubvectorEltIndex(sub_p, i, j, k);
x = RealSpaceX(i, 0) + fdir[0] * dx2;
y = RealSpaceY(j, 0) + fdir[1] * dy2;
z = RealSpaceZ(k, 0) + fdir[2] * dz2;
/* project center of BC face onto piecewise line */
xy = (x * unitx + y * unity - line_min) / line_length;
/* find two neighboring points */
ip = 1;
/* Kludge; this needs to be fixed. */
num_points = 2;
for (; ip < (num_points - 1); ip++)
{
if (xy < BCPressureType1Point(bc_pressure_type1, ip))
break;
}
/* compute the slope */
slope = ((BCPressureType1Value(bc_pressure_type1, ip) - BCPressureType1Value(bc_pressure_type1, (ip - 1)))
/ (BCPressureType1Point(bc_pressure_type1, ip) - BCPressureType1Point(bc_pressure_type1, (ip - 1))));
pp[ival] = BCPressureType1Value(bc_pressure_type1, ip - 1)
+ slope * (xy - BCPressureType1Point(
bc_pressure_type1, ip - 1))
- rho_g * z;
cellTypep[ival] = 0;
});
} /* End subgrid loop */
