void EQS_KD2D::Validate( PROJECT* project, int np, NODE** node,
int ne, NODE** cent, ELEM** elem )
{
// -------------------------------------------------------------------------------------
// Check K and D for minmum flow velocity (Reynolds number) in surrounding nodes
// define the limit of Re, where K and D will be set to their minimum
double minRe = 10.0;
// for each node: determine the maximum Reynolds number from surrounding nodes
double* maxRe = (double*) MEMORY::memo.Array_nd( np );
for( int n=0; n<np; n++ )
{
NODE* nd = node[n];
int no = nd->Getno();
double U = nd->v.U;
double V = nd->v.V;
double H = nd->v.S - nd->z;
maxRe[no] = 4.0 * H * sqrt( U*U + V*V ) / project->vk;
// check also surrounding nodes, if Reynolds number is too small at node ndi
if( maxRe[no] < minRe )
{
for( int j=0; j<nd->noel; j++ )
{
ELEM* el = nd->el[j];
for( int k=0; k<el->Getncn(); k++ )
{
NODE* ndk = el->Getnode(k);
double U = ndk->v.U;
double V = ndk->v.V;
double H = ndk->v.S - ndk->z;
double Re = H * 4.0 * sqrt( U*U + V*V ) / project->vk;
if( Re > maxRe[no] )
{
maxRe[no] = Re;
if( maxRe[no] > minRe ) break;
}
}
if( maxRe[no] > minRe ) break;
}
}
}
# ifdef _MPI_
project->subdom.Mpi_max( maxRe );
# endif
for( int n=0; n<np; n++ )
{
NODE* nd = node[n];
int no = nd->Getno();
// set the turbulence at nodes with very small Reynolds numbers to the minimum
if( maxRe[no] < minRe )
{
nd->v.K = project->minK;
nd->v.D = project->minD;
}
}
MEMORY::memo.Detach( maxRe );
if( quarterShape )
{
for( int e=0; e<ne; e++ )
{
ELEM* el = elem[e];
if( isFS( el->flag, ELEM::kRegion) && el->Getncn() == 4 )
{
int no = el->Getno();
NODE* nd = cent[no];
double U = nd->v.U;
double V = nd->v.V;
double H = nd->v.S - nd->z;
double c_maxRe = 4.0 * H * sqrt( U*U + V*V ) / project->vk;
// check also surrounding nodes, if Reynolds number is too small at node ndi
if( c_maxRe < minRe )
{
for( int k=0; k<el->Getncn(); k++ )
{
NODE* ndk = el->Getnode(k);
double U = ndk->v.U;
double V = ndk->v.V;
double H = ndk->v.S - ndk->z;
double Re = H * 4.0 * sqrt( U*U + V*V ) / project->vk;
if( Re > c_maxRe )
{
c_maxRe = Re;
if( c_maxRe > minRe ) break;
}
}
}
// set the turbulence at nodes with very small Reynolds numbers to the minimum
if( c_maxRe < minRe )
{
nd->v.K = project->minK;
nd->v.D = project->minD;
}
}
}
}
// -------------------------------------------------------------------------------------
// try to interpolate nodes with negative values from surrounding nodes
// Note: This interpolation is not so helpful in all cases.
// ***PENDING*** MPI broadcasting of averaged nodal values Kave and Dave
// from surrounding elements.
/*
GRID* rg = project->M2D->region;
int* cnK = (int*) MEMORY::memo.Array_el( rg->Getne() );
int* cnD = (int*) MEMORY::memo.Array_el( rg->Getne() );
double* elK = (double*) MEMORY::memo.Array_el( rg->Getne() );
double* elD = (double*) MEMORY::memo.Array_el( rg->Getne() );
int iter;
for( iter=0; iter<0; iter++ )
{
int further = false;
for( int e=0; e<rg->Getne(); e++ )
{
ELEM* el = rg->Getelem(e);
int no = el->Getno();
int ncn = el->getncn();
cnK[no] = cnD[no] = 0;
elK[no] = elD[no] = 0.0;
for( int i=0; i<ncn; i++ )
{
NODE* nd = el->Getnode(i);
if( isFS(nd->flag, NODE::kDry) ) continue;
double K = nd->v.K;
if( K > 0.0 )
{
elK[no] += K;
cnK[no]++;
}
double D = nd->v.D;
if( D > 0.0 )
{
elD[no] += D;
cnD[no]++;
}
}
}
for( int n=0; n<np; n++ )
{
NODE* nd = node[n];
if( nd->v.K <= 0.0 )
{
further = true;
int cntK = 0;
double Kave = 0.0;
for( int i=0; i<nd->noel; i++ )
{
ELEM* el = nd->el[i];
int no = el->Getno();
if( cnK[no] )
{
Kave += elK[no];
cntK += cnK[no];
}
}
if( cntK ) nd->v.K = Kave / cntK;
}
if( nd->v.D <= 0.0 )
{
further = true;
int cntD = 0;
double Dave = 0.0;
for( int i=0; i<nd->noel; i++ )
{
ELEM* el = nd->el[i];
int no = el->Getno();
if( cnD[no] )
{
Dave += elD[no];
cntD += cnD[no];
}
}
if( cntD ) nd->v.D = Dave / cntD;
}
}
if( !further ) break;
}
MEMORY::memo.Detach( cnK );
MEMORY::memo.Detach( cnD );
MEMORY::memo.Detach( elK );
MEMORY::memo.Detach( elD );
if( iter )
{
REPORT::rpt.Message( "\n%-25s%s %d %s\n", " (EQS_KD2D::Validate)",
"interpolation of negative values in", iter, "iterations" );
}
*/
// -------------------------------------------------------------------------------------
// check K and D for minimum values
for( int n=0; n<np; n++ )
{
NODE* nd = node[n];
if( nd->v.K < project->minK || nd->v.D < project->minD )
{
nd->v.K = project->minK;
nd->v.D = project->minD;
}
}
if( quarterShape )
{
for( int e=0; e<ne; e++ )
{
ELEM* el = elem[e];
if( isFS( el->flag, ELEM::kRegion) && el->Getncn() == 4 )
{
int no = el->Getno();
NODE* nd = cent[no];
if( nd->v.K < project->minK || nd->v.D < project->minD )
{
nd->v.K = project->minK;
nd->v.D = project->minD;
}
}
}
}
}
double* MODEL::Rot2D()
{
int np = region->Getnp();
int ne = region->Getne();
// -------------------------------------------------------------------------------------
// allocate memory for rotation of flow field
// -------------------------------------------------------------------------------------
double* rot = (double*) MEMORY::memo.Array_nd( np );
double* wgt = (double*) MEMORY::memo.Array_nd( np );
for( int n=0; n<np; n++ ) rot[n] = wgt[n] = 0.0;
// -------------------------------------------------------------------------------------
// loop on elements
// -------------------------------------------------------------------------------------
for( int e=0; e<ne; e++ )
{
ELEM* elem = region->Getelem(e);
SHAPE* shape = elem->GetQShape();
int ngp = shape->ngp; // number of GAUSS points
int nnd = shape->nnd; // number of corner nodes
// -----------------------------------------------------------------------------------
// compute coordinates relative to first node
double x[kMaxNodes2D], y[kMaxNodes2D];
x[0] = elem->nd[0]->x;
y[0] = elem->nd[0]->y;
for( int i=1; i<nnd; i++ )
{
x[i] = elem->nd[i]->x - *x;
y[i] = elem->nd[i]->y - *y;
}
x[0] = y[0] = 0.0;
// -----------------------------------------------------------------------------------
// use GAUSS point integration to solve momentum and continuity
for( int g=0; g<ngp; g++ )
{
// form JACOBIAN transformation matrix ---------------------------------------------
double trafo[2][2];
double* dfdxPtr = shape->dfdx[g];
double* dfdyPtr = shape->dfdy[g];
double detj = shape->jacobi2D( nnd, dfdxPtr, dfdyPtr, x, y, trafo );
double weight = detj * shape->weight[g];
// compute values of shape functions at GP g ---------------------------------------
double* n = shape->f[g];
double dndx[kMaxNodes2D], dndy[kMaxNodes2D];
for( int i=0; i<nnd; i++ )
{
dndx[i] = trafo[0][0] * dfdxPtr[i] + trafo[0][1] * dfdyPtr[i];
dndy[i] = trafo[1][0] * dfdxPtr[i] + trafo[1][1] * dfdyPtr[i];
}
// compute flow parameters and their derivatives -----------------------------------
double dUdy = 0.0;
double dVdx = 0.0;
for( int i=0; i<nnd; i++ )
{
NODE* node = elem->nd[i];
dUdy += dndy[i] * node->v.U;
dVdx += dndx[i] * node->v.V;
}
// compute rotation ----------------------------------------------------------------
double f = weight * ( dVdx - dUdy );
for( int i=0; i<nnd; i++ )
{
NODE* nd = elem->nd[i];
int no = nd->Getno();
rot[no] += f;
wgt[no] += weight;
}
}
}
subdom->Mpi_assemble( rot );
subdom->Mpi_assemble( wgt );
// -------------------------------------------------------------------------------------
// solve for rotation
for( int n=0; n<np; n++ )
{
rot[n] /= wgt[n];
}
// -------------------------------------------------------------------------------------
MEMORY::memo.Detach( wgt );
return rot;
}
void MODEL::MPI_Comm_Dry( PROJECT* project, int initialize )
{
# ifdef _MPI_
DRYREW* dryRew = ®ion->dryRew;
SUBDOM* subdom = &project->subdom;
INFACE* inface = subdom->inface;
// loop on all interfaces: exchange dry flag -----------------------------------------------------
// set sub->dry flag for dry interface nodes in adjacent subdomains
for( int s=0; s<subdom->npr; s++ )
{
MPI_Status status;
int np = inface[s].np;
if( np > 0 )
{
// initialize the flag "nd->sub->dry" --------------------------------------------------------
for( int n=0; n<np; n++ )
{
NODE* nd = inface[s].node[n];
SUB* sub = nd->sub;
while( sub )
{
if( sub->no == s ) sub->dry = false;
sub = sub->next;
}
if( isFS(nd->flag, NODE::kDry) ) inface[s].sia1[n] = true;
else inface[s].sia1[n] = false;
}
// exchange data on interface nodes ----------------------------------------------------------
MPI_Sendrecv( inface[s].sia1, np, MPI_CHAR, s, 1,
inface[s].ria1, np, MPI_CHAR, s, 1,
MPI_COMM_WORLD, &status );
// set the flag "nd->sub->dry" for dry nodes in adjacent subdomain and -----------------------
// adjust water elevation (necessary for just wetted interface nodes)
for( int n=0; n<np; n++ )
{
NODE* nd = inface[s].node[n];
if( inface[s].ria1[n] )
{
SUB* sub = nd->sub;
while( sub )
{
if( sub->no == s ) sub->dry = true;
sub = sub->next;
}
}
}
}
}
// average data across domains (necessary for wetting interfaces) --------------------------------
if( initialize )
{
MPI_Status status;
int rgnp = region->Getnp();
int* cnt = (int*) MEMORY::memo.Array_nd( rgnp );
for( int n=0; n<rgnp; n++ ) cnt[n] = 1;
for( int s=0; s<subdom->npr; s++ )
{
int npinf = inface[s].np;
if( npinf > 0 )
{
for( int n=0; n<npinf; n++ )
{
NODE* nd = inface[s].node[n];
inface[s].send[3*n] = nd->v.U;
inface[s].send[3*n+1] = nd->v.V;
inface[s].send[3*n+2] = nd->v.S;
}
}
}
for( int s=0; s<subdom->npr; s++ )
{
int npinf = inface[s].np;
if( npinf > 0 )
{
MPI_Sendrecv( inface[s].send, 3*npinf, MPI_DOUBLE, s, 1,
inface[s].recv, 3*npinf, MPI_DOUBLE, s, 1,
MPI_COMM_WORLD, &status );
for( int n=0; n<npinf; n++ )
{
NODE* nd = inface[s].node[n];
SUB* sub = nd->sub;
while( sub )
{
if( sub->no == s )
{
if( !sub->dry )
{
nd->v.U += inface[s].recv[3*n];
nd->v.V += inface[s].recv[3*n+1];
nd->v.S += inface[s].recv[3*n+2];
cnt[nd->Getno()]++;
}
}
sub = sub->next;
}
}
}
}
for( int n=0; n<rgnp; n++ )
{
if( cnt[n] > 1 )
{
NODE* nd = region->Getnode(n);
nd->v.U /= cnt[n];
nd->v.V /= cnt[n];
nd->v.S /= cnt[n];
}
}
MEMORY::memo.Detach( cnt );
}
# ifdef kDebug_2
{
char text[200];
sprintf( text, "### DEBUGGING: List of dry interface nodes...\n\n" );
REPORT::rpt.Output( text, 1 );
for( int s=0; s<subdom->npr; s++ )
{
int np = inface[s].np;
if( np > 0 )
{
sprintf( text, "interface to domain %d\n", s+1 );
REPORT::rpt.Output( text, 1 );
for( int n=0; n<np; n++ )
{
NODE* nd = inface[s].node[n];
SUB* sub = nd->sub;
while( sub )
{
if( sub->no == s )
{
if( sub->dry )
{
if( isFS(nd->flag, NODE::kDry) )
{
sprintf( text, "dry interface node %5d: dry\n", nd->Getname() );
REPORT::rpt.Output( text, 1 );
}
else
{
sprintf( text, "wet interface node %5d: dry\n", nd->Getname() );
REPORT::rpt.Output( text, 1 );
}
}
else
{
if( isFS(nd->flag, NODE::kDry) )
{
sprintf( text, "dry interface node %5d: wet\n", nd->Getname() );
REPORT::rpt.Output( text, 1 );
}
else
{
sprintf( text, "wet interface node %5d: wet\n", nd->Getname() );
REPORT::rpt.Output( text, 1 );
}
}
}
sub = sub->next;
}
}
}
}
}
# endif // #ifdef kDebug_2
# endif // #ifdef _MPI_
}
void EQS_D2D::Validate( int np, NODE** node, PROJECT* project )
{
// for( int iter=0; iter<1000; iter++ )
// {
// int further = false;
//
// for( int i=0; i<np; i++ )
// {
// NODE* nd = node[i];
//
// if( isFS(nd->flag, NODE::kDry) ) continue;
//
// double U = nd->v.U;
// double V = nd->v.V;
// double Us = sqrt( nd->cf * (U*U + V*V) );
//
// double H = nd->v.S - nd->z;
// if( H <= 0.0 ) H = project->hmin;
//
// if( nd->v.D <= 0.0 )
// {
// further = true;
//
// int noel = nd->noel;
//
// double Dave = 0.0;
// int cntD = 0;
//
// for( int j=0; j<noel; j++ )
// {
// ELEM* el = nd->el[j];
//
// for( int k=0; k<el->getnnd(); k++ )
// {
// double D = el->nd[k]->v.D;
// if( D > 0.0 )
// {
// Dave += D;
// cntD++;
// }
// }
// }
//
// // ***PENDING*** MPI broadcasting of averaged values ...
//
// if( cntD > 0 )
// {
// nd->v.D = Dave / cntD;
// }
// }
// }
//
// if( !further ) break;
// }
// -------------------------------------------------------------------------------------
for( int i=0; i<np; i++ )
{
NODE* nd = node[i];
int no = nd->Getno();
if( isFS(nd->flag, NODE::kDry) ) continue;
if( nd->v.D < project->minD )
{
nd->v.K = project->minK;
nd->v.D = project->minD;
}
}
}
int REORDER::removeFront( ELEM *el, REOFRONT **frnt, int num )
{
int i, ncn;
ncn = el->Getncn();
el->mark = false;
for( i=0; i<ncn; i++ )
{
NODE *nd;
REOFRONT *fr, *fr_prev;
nd = el->nd[i];
fr = *frnt;
fr_prev = NULL;
while( fr )
{
if( fr->node == nd ) break;
fr_prev = fr;
fr = fr->next;
}
// wenn der Knoten in der Liste steht ...
if( fr )
{
fr->miss++;
if( fr->miss == nd->noel )
{
// Knoten war mit dem Element 'el' neu hinzugekommen
// und kann nun wieder entfernt werden
num--;
if( fr_prev )
fr_prev->next = fr->next;
else
*frnt = fr->next;
}
}
// ... andernfalls wird er nun wieder aktiv
else
{
if( nd->noel > 1 )
{
fr = &frontPtr[nd->Getno()];
if( fr_prev )
fr_prev->next = fr;
else
*frnt = fr;
fr->next = NULL;
fr->miss = 1;
num++;
}
}
}
return num;
}
int REORDER::updateFront( ELEM *el, REOFRONT **frnt, int num, int histflg )
{
int i, ncn;
ncn = el->Getncn();
el->mark = true;
for( i=0; i<ncn; i++ )
{
NODE *nd;
REOFRONT *fr, *fr_prev;
nd = el->nd[i];
fr = *frnt;
fr_prev = NULL;
while( fr )
{
if( fr->node == nd ) break;
fr_prev = fr;
fr = fr->next;
}
// wenn der Knoten bereits in der Liste steht ...
if ( fr )
{
fr->miss--;
if ( !fr->miss )
{
// Knoten ist mit dem Element 'el' komplett und
// wird aus der Liste aktiver Knoten entfernt
num--;
if (histflg)
fr->hist = 0;
if (fr_prev)
fr_prev->next = fr->next;
else
*frnt = fr->next;
}
}
// ... andernfalls wird er an die Liste angehaengt
else
{
if( nd->noel > 1)
{
fr = &frontPtr[nd->Getno()];
if( fr_prev )
fr_prev->next = fr;
else
*frnt = fr;
fr->next = NULL;
fr->miss = nd->noel - 1;
if( histflg )
fr->hist = hist_cnt++;
num++;
}
}
}
return (num);
}
