//--------------------------------------------------------------------------
//-------- clip_min_distance_to_wall ---------------------------------------
//--------------------------------------------------------------------------
void
ShearStressTransportEquationSystem::clip_min_distance_to_wall()
{
// if this is a restart, then min distance has already been clipped
if (realm_.restarted_simulation())
return;
// okay, no restart: proceed with clipping of minimum wall distance
stk::mesh::BulkData & bulk_data = realm_.bulk_data();
stk::mesh::MetaData & meta_data = realm_.meta_data();
const int nDim = meta_data.spatial_dimension();
// extract fields required
GenericFieldType *exposedAreaVec = meta_data.get_field<GenericFieldType>(meta_data.side_rank(), "exposed_area_vector");
VectorFieldType *coordinates = meta_data.get_field<VectorFieldType>(stk::topology::NODE_RANK, realm_.get_coordinates_name());
// define vector of parent topos; should always be UNITY in size
std::vector<stk::topology> parentTopo;
// selector
stk::mesh::Selector s_locally_owned_union = meta_data.locally_owned_part()
&stk::mesh::selectUnion(wallBcPart_);
stk::mesh::BucketVector const& face_buckets =
realm_.get_buckets( meta_data.side_rank(), s_locally_owned_union );
for ( stk::mesh::BucketVector::const_iterator ib = face_buckets.begin();
ib != face_buckets.end() ; ++ib ) {
stk::mesh::Bucket & b = **ib ;
// extract connected element topology
b.parent_topology(stk::topology::ELEMENT_RANK, parentTopo);
ThrowAssert ( parentTopo.size() == 1 );
stk::topology theElemTopo = parentTopo[0];
// extract master element
MasterElement *meSCS = realm_.get_surface_master_element(theElemTopo);
// face master element
const int nodesPerFace = b.topology().num_nodes();
std::vector<int> face_node_ordinal_vec(nodesPerFace);
const stk::mesh::Bucket::size_type length = b.size();
for ( stk::mesh::Bucket::size_type k = 0 ; k < length ; ++k ) {
// get face
stk::mesh::Entity face = b[k];
int num_face_nodes = bulk_data.num_nodes(face);
// pointer to face data
const double * areaVec = stk::mesh::field_data(*exposedAreaVec, face);
// extract the connected element to this exposed face; should be single in size!
const stk::mesh::Entity* face_elem_rels = bulk_data.begin_elements(face);
ThrowAssert( bulk_data.num_elements(face) == 1 );
// get element; its face ordinal number and populate face_node_ordinal_vec
stk::mesh::Entity element = face_elem_rels[0];
const int face_ordinal = bulk_data.begin_element_ordinals(face)[0];
theElemTopo.side_node_ordinals(face_ordinal, face_node_ordinal_vec.begin());
// get the relations off of element
stk::mesh::Entity const * elem_node_rels = bulk_data.begin_nodes(element);
// loop over face nodes
for ( int ip = 0; ip < num_face_nodes; ++ip ) {
const int offSetAveraVec = ip*nDim;
const int opposingNode = meSCS->opposingNodes(face_ordinal,ip);
const int nearestNode = face_node_ordinal_vec[ip];
// left and right nodes; right is on the face; left is the opposing node
stk::mesh::Entity nodeL = elem_node_rels[opposingNode];
stk::mesh::Entity nodeR = elem_node_rels[nearestNode];
// extract nodal fields
const double * coordL = stk::mesh::field_data(*coordinates, nodeL );
const double * coordR = stk::mesh::field_data(*coordinates, nodeR );
double aMag = 0.0;
for ( int j = 0; j < nDim; ++j ) {
const double axj = areaVec[offSetAveraVec+j];
aMag += axj*axj;
}
aMag = std::sqrt(aMag);
// form unit normal and determine yp (approximated by 1/4 distance along edge)
double ypbip = 0.0;
for ( int j = 0; j < nDim; ++j ) {
const double nj = areaVec[offSetAveraVec+j]/aMag;
const double ej = 0.25*(coordR[j] - coordL[j]);
ypbip += nj*ej*nj*ej;
}
ypbip = std::sqrt(ypbip);
// assemble to nodal quantities
double *minD = stk::mesh::field_data(*minDistanceToWall_, nodeR );
*minD = std::max(*minD, ypbip);
}
}
}
}
//--------------------------------------------------------------------------
//-------- execute ---------------------------------------------------------
//--------------------------------------------------------------------------
void
AssembleScalarEdgeOpenSolverAlgorithm::execute()
{
stk::mesh::BulkData & bulk_data = realm_.bulk_data();
stk::mesh::MetaData & meta_data = realm_.meta_data();
// space for LHS/RHS; nodesPerElement*nodesPerElement and nodesPerElement
std::vector<double> lhs;
std::vector<double> rhs;
std::vector<stk::mesh::Entity> connected_nodes;
// deal with state
ScalarFieldType &scalarQNp1 = scalarQ_->field_of_state(stk::mesh::StateNP1);
// define vector of parent topos; should always be UNITY in size
std::vector<stk::topology> parentTopo;
// define some common selectors
stk::mesh::Selector s_locally_owned_union = meta_data.locally_owned_part()
&stk::mesh::selectUnion(partVec_);
stk::mesh::BucketVector const& face_buckets =
realm_.get_buckets( meta_data.side_rank(), s_locally_owned_union );
for ( stk::mesh::BucketVector::const_iterator ib = face_buckets.begin();
ib != face_buckets.end() ; ++ib ) {
stk::mesh::Bucket & b = **ib ;
// extract connected element topology
b.parent_topology(stk::topology::ELEMENT_RANK, parentTopo);
ThrowAssert ( parentTopo.size() == 1 );
stk::topology theElemTopo = parentTopo[0];
// volume master element
MasterElement *meSCS = realm_.get_surface_master_element(theElemTopo);
const int nodesPerElement = meSCS->nodesPerElement_;
// face master element
MasterElement *meFC = realm_.get_surface_master_element(b.topology());
const int nodesPerFace = meFC->nodesPerElement_;
std::vector<int> face_node_ordinal_vec(nodesPerFace);
// resize some things; matrix related
const int lhsSize = nodesPerElement*nodesPerElement;
const int rhsSize = nodesPerElement;
lhs.resize(lhsSize);
rhs.resize(rhsSize);
connected_nodes.resize(nodesPerElement);
// pointers
double *p_lhs = &lhs[0];
double *p_rhs = &rhs[0];
// size some things that are useful
const int num_face_nodes = b.topology().num_nodes();
std::vector<int> face_node_ordinals(num_face_nodes);
const stk::mesh::Bucket::size_type length = b.size();
for ( stk::mesh::Bucket::size_type k = 0 ; k < length ; ++k ) {
// zero lhs/rhs
for ( int p = 0; p < lhsSize; ++p )
p_lhs[p] = 0.0;
for ( int p = 0; p < rhsSize; ++p )
p_rhs[p] = 0.0;
// get face
stk::mesh::Entity face = b[k];
// pointer to face data
const double * mdot = stk::mesh::field_data(*openMassFlowRate_, face);
// extract the connected element to this exposed face; should be single in size!
const stk::mesh::Entity* face_elem_rels = bulk_data.begin_elements(face);
ThrowAssert( bulk_data.num_elements(face) == 1 );
// get element; its face ordinal number and populate face_node_ordinal_vec
stk::mesh::Entity element = face_elem_rels[0];
const int face_ordinal = bulk_data.begin_element_ordinals(face)[0];
theElemTopo.side_node_ordinals(face_ordinal, face_node_ordinal_vec.begin());
//==========================================
// gather nodal data off of element; n/a
//==========================================
const stk::mesh::Entity* elem_node_rels = bulk_data.begin_nodes(element);
const int num_nodes = bulk_data.num_nodes(element);
// sanity check on num nodes
ThrowAssert( num_nodes == nodesPerElement );
for ( int ni = 0; ni < num_nodes; ++ni ) {
stk::mesh::Entity node = elem_node_rels[ni];
// set connected nodes
connected_nodes[ni] = node;
}
// loop over face nodes
for ( int ip = 0; ip < num_face_nodes; ++ip ) {
const int nearestNode = face_node_ordinal_vec[ip];
// left and right nodes; right is on the face; left is the opposing node
stk::mesh::Entity nodeR = elem_node_rels[nearestNode];
const double qR = *stk::mesh::field_data( scalarQNp1, nodeR );
const double qEntrain = *stk::mesh::field_data( *bcScalarQ_, nodeR );
//================================
// advection first (and only)
//================================
const double tmdot = mdot[ip];
const int rowR = nearestNode*nodesPerElement;
// advection; leaving the domain
if ( tmdot > 0.0 ) {
// total advection
const double aflux = tmdot*qR;
p_rhs[nearestNode] -= aflux;
// upwind lhs
p_lhs[rowR+nearestNode] += tmdot;
}
else {
// extrainment; advect in from specified value
const double aflux = tmdot*qEntrain;
p_rhs[nearestNode] -= aflux;
}
}
apply_coeff(connected_nodes, rhs, lhs, __FILE__);
}
}
}
//--------------------------------------------------------------------------
//-------- execute ---------------------------------------------------------
//--------------------------------------------------------------------------
void
AssembleScalarElemOpenSolverAlgorithm::execute()
{
stk::mesh::BulkData & bulk_data = realm_.bulk_data();
stk::mesh::MetaData & meta_data = realm_.meta_data();
const int nDim = meta_data.spatial_dimension();
const double small = 1.0e-16;
// extract user advection options (allow to potentially change over time)
const std::string dofName = scalarQ_->name();
const double alphaUpw = realm_.get_alpha_upw_factor(dofName);
const double hoUpwind = realm_.get_upw_factor(dofName);
// one minus flavor..
const double om_alphaUpw = 1.0-alphaUpw;
// space for LHS/RHS; nodesPerElement*nodesPerElement and nodesPerElement
std::vector<double> lhs;
std::vector<double> rhs;
std::vector<int> scratchIds;
std::vector<double> scratchVals;
std::vector<stk::mesh::Entity> connected_nodes;
// ip values; only boundary
std::vector<double> coordBip(nDim);
// pointers to fixed values
double *p_coordBip = &coordBip[0];
// nodal fields to gather
std::vector<double> ws_face_coordinates;
std::vector<double> ws_scalarQNp1;
std::vector<double> ws_bcScalarQ;
// master element
std::vector<double> ws_face_shape_function;
// deal with state
ScalarFieldType &scalarQNp1 = scalarQ_->field_of_state(stk::mesh::StateNP1);
ScalarFieldType &densityNp1 = density_->field_of_state(stk::mesh::StateNP1);
// define vector of parent topos; should always be UNITY in size
std::vector<stk::topology> parentTopo;
// define some common selectors
stk::mesh::Selector s_locally_owned_union = meta_data.locally_owned_part()
&stk::mesh::selectUnion(partVec_);
stk::mesh::BucketVector const& face_buckets =
realm_.get_buckets( meta_data.side_rank(), s_locally_owned_union );
for ( stk::mesh::BucketVector::const_iterator ib = face_buckets.begin();
ib != face_buckets.end() ; ++ib ) {
stk::mesh::Bucket & b = **ib ;
// extract connected element topology
b.parent_topology(stk::topology::ELEMENT_RANK, parentTopo);
ThrowAssert ( parentTopo.size() == 1 );
stk::topology theElemTopo = parentTopo[0];
// volume master element
MasterElement *meSCS = realm_.get_surface_master_element(theElemTopo);
const int nodesPerElement = meSCS->nodesPerElement_;
// face master element
MasterElement *meFC = realm_.get_surface_master_element(b.topology());
const int nodesPerFace = meFC->nodesPerElement_;
const int numScsBip = meFC->numIntPoints_;
std::vector<int> face_node_ordinal_vec(nodesPerFace);
// resize some things; matrix related
const int lhsSize = nodesPerElement*nodesPerElement;
const int rhsSize = nodesPerElement;
lhs.resize(lhsSize);
rhs.resize(rhsSize);
scratchIds.resize(rhsSize);
scratchVals.resize(rhsSize);
connected_nodes.resize(nodesPerElement);
// algorithm related; element
ws_face_coordinates.resize(nodesPerFace*nDim);
ws_scalarQNp1.resize(nodesPerFace);
ws_bcScalarQ.resize(nodesPerFace);
ws_face_shape_function.resize(numScsBip*nodesPerFace);
// pointers
double *p_lhs = &lhs[0];
double *p_rhs = &rhs[0];
double *p_face_coordinates = &ws_face_coordinates[0];
double *p_scalarQNp1 = &ws_scalarQNp1[0];
double *p_bcScalarQ = &ws_bcScalarQ[0];
double *p_face_shape_function = &ws_face_shape_function[0];
// shape functions
meFC->shape_fcn(&p_face_shape_function[0]);
const stk::mesh::Bucket::size_type length = b.size();
for ( stk::mesh::Bucket::size_type k = 0 ; k < length ; ++k ) {
// zero lhs/rhs
for ( int p = 0; p < lhsSize; ++p )
p_lhs[p] = 0.0;
for ( int p = 0; p < rhsSize; ++p )
p_rhs[p] = 0.0;
// get face
stk::mesh::Entity face = b[k];
// pointer to face data
const double * mdot = stk::mesh::field_data(*openMassFlowRate_, face);
//======================================
// gather nodal data off of face
//======================================
stk::mesh::Entity const * face_node_rels = bulk_data.begin_nodes(face);
int num_face_nodes = bulk_data.num_nodes(face);
// sanity check on num nodes
ThrowAssert( num_face_nodes == nodesPerFace );
for ( int ni = 0; ni < num_face_nodes; ++ni ) {
stk::mesh::Entity node = face_node_rels[ni];
// gather scalars
p_scalarQNp1[ni] = *stk::mesh::field_data(scalarQNp1, node);
p_bcScalarQ[ni] = *stk::mesh::field_data(*bcScalarQ_, node);
// gather vectors
double * coords = stk::mesh::field_data(*coordinates_, node);
const int offSet = ni*nDim;
for ( int i=0; i < nDim; ++i ) {
p_face_coordinates[offSet+i] = coords[i];
}
}
// extract the connected element to this exposed face; should be single in size!
const stk::mesh::Entity* face_elem_rels = bulk_data.begin_elements(face);
ThrowAssert( bulk_data.num_elements(face) == 1 );
// get element; its face ordinal number and populate face_node_ordinal_vec
stk::mesh::Entity element = face_elem_rels[0];
const int face_ordinal = bulk_data.begin_element_ordinals(face)[0];
theElemTopo.side_node_ordinals(face_ordinal, face_node_ordinal_vec.begin());
// mapping from ip to nodes for this ordinal
const int *ipNodeMap = meSCS->ipNodeMap(face_ordinal);
//==========================================
// gather nodal data off of element; n/a
//==========================================
stk::mesh::Entity const * elem_node_rels = bulk_data.begin_nodes(element);
int num_nodes = bulk_data.num_nodes(element);
// sanity check on num nodes
ThrowAssert( num_nodes == nodesPerElement );
for ( int ni = 0; ni < num_nodes; ++ni ) {
// set connected nodes
connected_nodes[ni] = elem_node_rels[ni];
}
// loop over face nodes
for ( int ip = 0; ip < numScsBip; ++ip ) {
const int opposingNode = meSCS->opposingNodes(face_ordinal,ip);
const int nearestNode = ipNodeMap[ip];
const int offSetSF_face = ip*nodesPerFace;
// left and right nodes; right is on the face; left is the opposing node
stk::mesh::Entity nodeL = elem_node_rels[opposingNode];
stk::mesh::Entity nodeR = elem_node_rels[nearestNode];
// zero out vector quantities
for ( int j = 0; j < nDim; ++j )
p_coordBip[j] = 0.0;
// interpolate to bip
double qIp = 0.0;
double qIpEntrain = 0.0;
for ( int ic = 0; ic < nodesPerFace; ++ic ) {
const double r = p_face_shape_function[offSetSF_face+ic];
qIp += r*p_scalarQNp1[ic];
qIpEntrain += r*p_bcScalarQ[ic];
const int offSetFN = ic*nDim;
for ( int j = 0; j < nDim; ++j ) {
p_coordBip[j] += r*p_face_coordinates[offSetFN+j];
}
}
// Peclet factor; along the edge is fine
const double densL = *stk::mesh::field_data(densityNp1, nodeL);
const double densR = *stk::mesh::field_data(densityNp1, nodeR);
const double diffCoeffL = *stk::mesh::field_data(*diffFluxCoeff_, nodeL);
const double diffCoeffR = *stk::mesh::field_data(*diffFluxCoeff_, nodeR);
const double scalarQNp1R = *stk::mesh::field_data(scalarQNp1, nodeR);
const double *vrtmL = stk::mesh::field_data(*velocityRTM_, nodeL);
const double *vrtmR = stk::mesh::field_data(*velocityRTM_, nodeR);
const double *coordL = stk::mesh::field_data(*coordinates_, nodeL);
const double *coordR = stk::mesh::field_data(*coordinates_, nodeR);
const double *dqdxR = stk::mesh::field_data(*dqdx_, nodeR);
double udotx = 0.0;
double dqR = 0.0;
for ( int i = 0; i < nDim; ++i ) {
const double dxi = coordR[i] - coordL[i];
udotx += 0.5*dxi*(vrtmL[i] + vrtmR[i]);
// extrapolation
const double dx_bip = coordBip[i] - coordR[i];
dqR += dx_bip*dqdxR[i]*hoUpwind;
}
const double qIpUpw = scalarQNp1R + dqR;
const double diffIp = 0.5*(diffCoeffL/densL + diffCoeffR/densR);
const double pecfac = pecletFunction_->execute(std::abs(udotx)/(diffIp+small));
const double om_pecfac = 1.0-pecfac;
//================================
// advection first (and only)
//================================
const double tmdot = mdot[ip];
const int rowR = nearestNode*nodesPerElement;
// advection; leaving the domain
if ( tmdot > 0.0 ) {
// central; is simply qIp
// upwind
const double qUpwind = alphaUpw*qIpUpw + (om_alphaUpw)*qIp;
// total advection
const double aflux = tmdot*(pecfac*qUpwind+om_pecfac*qIp);
p_rhs[nearestNode] -= aflux;
// upwind lhs
p_lhs[rowR+nearestNode] += tmdot*pecfac*alphaUpw;
// central part
const double fac = tmdot*(pecfac*om_alphaUpw+om_pecfac);
for ( int ic = 0; ic < nodesPerFace; ++ic ) {
const double r = p_face_shape_function[offSetSF_face+ic];
const int nn = face_node_ordinal_vec[ic];
p_lhs[rowR+nn] += r*fac;
}
}
else {
// extrainment; advect in from specified value
const double aflux = tmdot*qIpEntrain;
p_rhs[nearestNode] -= aflux;
}
}
apply_coeff(connected_nodes, scratchIds, scratchVals, rhs, lhs, __FILE__);
}
}
}
//--------------------------------------------------------------------------
//-------- execute ---------------------------------------------------------
//--------------------------------------------------------------------------
void
AssemblePressureForceBCSolverAlgorithm::execute()
{
stk::mesh::BulkData & bulk_data = realm_.bulk_data();
stk::mesh::MetaData & meta_data = realm_.meta_data();
const int nDim = meta_data.spatial_dimension();
// space for LHS/RHS; nodesPerElem*nDim*nodesPerElem*nDim and nodesPerElem*nDim
std::vector<double> lhs;
std::vector<double> rhs;
std::vector<stk::mesh::Entity> connected_nodes;
// nodal fields to gather
std::vector<double> ws_face_coordinates;
std::vector<double> ws_bcScalarQ;
// master element
std::vector<double> ws_face_shape_function;
// define vector of parent topos; should always be UNITY in size
std::vector<stk::topology> parentTopo;
// define some common selectors
stk::mesh::Selector s_locally_owned_union = meta_data.locally_owned_part()
&stk::mesh::selectUnion(partVec_);
stk::mesh::BucketVector const& face_buckets =
realm_.get_buckets( meta_data.side_rank(), s_locally_owned_union );
for ( stk::mesh::BucketVector::const_iterator ib = face_buckets.begin();
ib != face_buckets.end() ; ++ib ) {
stk::mesh::Bucket & b = **ib ;
// extract connected element topology
b.parent_topology(stk::topology::ELEMENT_RANK, parentTopo);
ThrowAssert ( parentTopo.size() == 1 );
stk::topology theElemTopo = parentTopo[0];
// volume master element
MasterElement *meSCS = realm_.get_surface_master_element(theElemTopo);
const int nodesPerElement = meSCS->nodesPerElement_;
// face master element
MasterElement *meFC = realm_.get_surface_master_element(b.topology());
const int nodesPerFace = meFC->nodesPerElement_;
std::vector<int> face_node_ordinal_vec(nodesPerFace);
// resize some things; matrix related
const int lhsSize = nodesPerElement*nDim*nodesPerElement*nDim;
const int rhsSize = nodesPerElement*nDim;
lhs.resize(lhsSize);
rhs.resize(rhsSize);
connected_nodes.resize(nodesPerElement);
// algorithm related; element
ws_face_coordinates.resize(nodesPerFace*nDim);
ws_bcScalarQ.resize(nodesPerFace);
ws_face_shape_function.resize(nodesPerFace*nodesPerFace);
// pointers
double *p_lhs = &lhs[0];
double *p_rhs = &rhs[0];
double *p_face_coordinates = &ws_face_coordinates[0];
double *p_bcScalarQ = &ws_bcScalarQ[0];
double *p_face_shape_function = &ws_face_shape_function[0];
// shape functions
if (use_shifted_integration_)
{
meFC->shifted_shape_fcn(&p_face_shape_function[0]);
}
else{
meFC->shape_fcn(&p_face_shape_function[0]);
}
const size_t length = b.size();
for ( size_t k = 0 ; k < length ; ++k ) {
// zero lhs/rhs
for ( int p = 0; p < lhsSize; ++p )
p_lhs[p] = 0.0;
for ( int p = 0; p < rhsSize; ++p )
p_rhs[p] = 0.0;
// get face
stk::mesh::Entity face = b[k];
//======================================
// gather nodal data off of face
//======================================
stk::mesh::Entity const * face_node_rels = bulk_data .begin_nodes(face);
int num_face_nodes = bulk_data.num_nodes(face);
// sanity check on num nodes
ThrowAssert( num_face_nodes == nodesPerFace );
for ( int ni = 0; ni < num_face_nodes; ++ni ) {
stk::mesh::Entity node = face_node_rels[ni];
p_bcScalarQ[ni] = *stk::mesh::field_data(*bcScalarQ_, node);
// gather vectors
double * coords = stk::mesh::field_data(*coordinates_, node);
const int offSet = ni*nDim;
for ( int i=0; i < nDim; ++i ) {
p_face_coordinates[offSet+i] = coords[i];
}
}
// extract the connected element to this exposed face; should be single in size!
const stk::mesh::Entity* face_elem_rels = bulk_data.begin_elements(face);
ThrowAssert( bulk_data.num_elements(face) == 1 );
// get element; its face ordinal number and populate face_node_ordinal_vec
stk::mesh::Entity element = face_elem_rels[0];
const int face_ordinal = bulk_data.begin_element_ordinals(face)[0];
theElemTopo.side_node_ordinals(face_ordinal, face_node_ordinal_vec.begin());
//==========================================
// gather nodal data off of element; n/a
//==========================================
stk::mesh::Entity const * elem_node_rels = bulk_data.begin_nodes(element);
int num_nodes = bulk_data.num_nodes(element);
// sanity check on num nodes
ThrowAssert( num_nodes == nodesPerElement );
for ( int ni = 0; ni < num_nodes; ++ni ) {
stk::mesh::Entity node = elem_node_rels[ni];
// set connected nodes
connected_nodes[ni] = node;
}
// pointer to face data
double * areaVec = stk::mesh::field_data(*exposedAreaVec_, face);
// loop over face nodes
for ( int ip = 0; ip < num_face_nodes; ++ip ) {
const int nearestNode = face_node_ordinal_vec[ip];
const int offSetSF_face = ip*nodesPerFace;
// interpolate to bip
double fluxBip = 0.0;
for ( int ic = 0; ic < nodesPerFace; ++ic ) {
const double r = p_face_shape_function[offSetSF_face+ic];
fluxBip += r*p_bcScalarQ[ic];
}
// assemble for each of the ith component
for ( int i = 0; i < nDim; ++i ) {
const int indexR = nearestNode*nDim + i;
p_rhs[indexR] -= fluxBip*areaVec[ip*nDim+i];
// RHS only, no need to populate LHS (is zeroed out)
}
}
apply_coeff(connected_nodes, rhs, lhs, __FILE__);
}
}
}
//--------------------------------------------------------------------------
//-------- execute ---------------------------------------------------------
//--------------------------------------------------------------------------
void
SurfaceForceAndMomentAlgorithm::execute()
{
// check to see if this is a valid step to process output file
const int timeStepCount = realm_.get_time_step_count();
const bool processMe = (timeStepCount % frequency_) == 0 ? true : false;
// do not waste time here
if ( !processMe )
return;
// common
stk::mesh::BulkData & bulk_data = realm_.bulk_data();
stk::mesh::MetaData & meta_data = realm_.meta_data();
const int nDim = meta_data.spatial_dimension();
// set min and max values
double yplusMin = 1.0e8;
double yplusMax = -1.0e8;
// nodal fields to gather
std::vector<double> ws_pressure;
std::vector<double> ws_density;
std::vector<double> ws_viscosity;
// master element
std::vector<double> ws_face_shape_function;
// deal with state
ScalarFieldType &densityNp1 = density_->field_of_state(stk::mesh::StateNP1);
// define vector of parent topos; should always be UNITY in size
std::vector<stk::topology> parentTopo;
const double currentTime = realm_.get_current_time();
// local force and moment; i.e., to be assembled
double l_force_moment[9] = {};
// work force, moment and radius; i.e., to be pushed to cross_product()
double ws_p_force[3] = {};
double ws_v_force[3] = {};
double ws_t_force[3] = {};
double ws_tau[3] = {};
double ws_moment[3] = {};
double ws_radius[3] = {};
// will need surface normal
double ws_normal[3] = {};
// centroid
double centroid[3] = {};
for ( size_t k = 0; k < parameters_.size(); ++k)
centroid[k] = parameters_[k];
// define some common selectors
stk::mesh::Selector s_locally_owned_union = meta_data.locally_owned_part()
&stk::mesh::selectUnion(partVec_);
stk::mesh::BucketVector const& face_buckets =
realm_.get_buckets( meta_data.side_rank(), s_locally_owned_union );
for ( stk::mesh::BucketVector::const_iterator ib = face_buckets.begin();
ib != face_buckets.end() ; ++ib ) {
stk::mesh::Bucket & b = **ib ;
// face master element
MasterElement *meFC = realm_.get_surface_master_element(b.topology());
const int nodesPerFace = meFC->nodesPerElement_;
std::vector<int> face_node_ordinal_vec(nodesPerFace);
// extract connected element topology
b.parent_topology(stk::topology::ELEMENT_RANK, parentTopo);
ThrowAssert ( parentTopo.size() == 1 );
stk::topology theElemTopo = parentTopo[0];
// extract master element for this element topo
MasterElement *meSCS = realm_.get_surface_master_element(theElemTopo);
// algorithm related; element
ws_pressure.resize(nodesPerFace);
ws_density.resize(nodesPerFace);
ws_viscosity.resize(nodesPerFace);
ws_face_shape_function.resize(nodesPerFace*nodesPerFace);
// pointers
double *p_pressure = &ws_pressure[0];
double *p_density = &ws_density[0];
double *p_viscosity = &ws_viscosity[0];
double *p_face_shape_function = &ws_face_shape_function[0];
// shape functions
if ( useShifted_ )
meFC->shifted_shape_fcn(&p_face_shape_function[0]);
else
meFC->shape_fcn(&p_face_shape_function[0]);
const stk::mesh::Bucket::size_type length = b.size();
for ( stk::mesh::Bucket::size_type k = 0 ; k < length ; ++k ) {
// get face
stk::mesh::Entity face = b[k];
// face node relations
stk::mesh::Entity const * face_node_rels = bulk_data.begin_nodes(face);
//======================================
// gather nodal data off of face
//======================================
for ( int ni = 0; ni < nodesPerFace; ++ni ) {
stk::mesh::Entity node = face_node_rels[ni];
// gather scalars
p_pressure[ni] = *stk::mesh::field_data(*pressure_, node);
p_density[ni] = *stk::mesh::field_data(densityNp1, node);
p_viscosity[ni] = *stk::mesh::field_data(*viscosity_, node);
}
// pointer to face data
const double * areaVec = stk::mesh::field_data(*exposedAreaVec_, face);
// extract the connected element to this exposed face; should be single in size!
const stk::mesh::Entity* face_elem_rels = bulk_data.begin_elements(face);
ThrowAssert( bulk_data.num_elements(face) == 1 );
// get element; its face ordinal number and populate face_node_ordinal_vec
stk::mesh::Entity element = face_elem_rels[0];
const int face_ordinal = bulk_data.begin_element_ordinals(face)[0];
theElemTopo.side_node_ordinals(face_ordinal, face_node_ordinal_vec.begin());
// get the relations off of element
stk::mesh::Entity const * elem_node_rels = bulk_data.begin_nodes(element);
for ( int ip = 0; ip < nodesPerFace; ++ip ) {
// offsets
const int offSetAveraVec = ip*nDim;
const int offSetSF_face = ip*nodesPerFace;
// interpolate to bip
double pBip = 0.0;
double rhoBip = 0.0;
double muBip = 0.0;
for ( int ic = 0; ic < nodesPerFace; ++ic ) {
const double r = p_face_shape_function[offSetSF_face+ic];
pBip += r*p_pressure[ic];
rhoBip += r*p_density[ic];
muBip += r*p_viscosity[ic];
}
// extract nodal fields
stk::mesh::Entity node = face_node_rels[ip];
const double * coord = stk::mesh::field_data(*coordinates_, node );
const double *duidxj = stk::mesh::field_data(*dudx_, node );
double *pressureForce = stk::mesh::field_data(*pressureForce_, node );
double *tauWall = stk::mesh::field_data(*tauWall_, node );
double *yplus = stk::mesh::field_data(*yplus_, node );
const double assembledArea = *stk::mesh::field_data(*assembledArea_, node );
// divU and aMag
double divU = 0.0;
double aMag = 0.0;
for ( int j = 0; j < nDim; ++j) {
divU += duidxj[j*nDim+j];
aMag += areaVec[offSetAveraVec+j]*areaVec[offSetAveraVec+j];
}
aMag = std::sqrt(aMag);
// normal
for ( int i = 0; i < nDim; ++i ) {
const double ai = areaVec[offSetAveraVec+i];
ws_normal[i] = ai/aMag;
}
// load radius; assemble force -sigma_ij*njdS and compute tau_ij njDs
for ( int i = 0; i < nDim; ++i ) {
const double ai = areaVec[offSetAveraVec+i];
ws_radius[i] = coord[i] - centroid[i];
// set forces
ws_v_force[i] = 2.0/3.0*muBip*divU*includeDivU_*ai;
ws_p_force[i] = pBip*ai;
pressureForce[i] += pBip*ai;
double dflux = 0.0;
double tauijNj = 0.0;
const int offSetI = nDim*i;
for ( int j = 0; j < nDim; ++j ) {
const int offSetTrans = nDim*j+i;
dflux += -muBip*(duidxj[offSetI+j] + duidxj[offSetTrans])*areaVec[offSetAveraVec+j];
tauijNj += -muBip*(duidxj[offSetI+j] + duidxj[offSetTrans])*ws_normal[j];
}
// accumulate viscous force and set tau for component i
ws_v_force[i] += dflux;
ws_tau[i] = tauijNj;
}
// compute total force and tangential tau
double tauTangential = 0.0;
for ( int i = 0; i < nDim; ++i ) {
ws_t_force[i] = ws_p_force[i] + ws_v_force[i];
double tauiTangential = (1.0-ws_normal[i]*ws_normal[i])*ws_tau[i];
for ( int j = 0; j < nDim; ++j ) {
if ( i != j )
tauiTangential -= ws_normal[i]*ws_normal[j]*ws_tau[j];
}
tauTangential += tauiTangential*tauiTangential;
}
// assemble nodal quantities; scaled by area for L2 lumped nodal projection
const double areaFac = aMag/assembledArea;
*tauWall += std::sqrt(tauTangential)*areaFac;
cross_product(&ws_t_force[0], &ws_moment[0], &ws_radius[0]);
// assemble force and moment
for ( int j = 0; j < 3; ++j ) {
l_force_moment[j] += ws_p_force[j];
l_force_moment[j+3] += ws_v_force[j];
l_force_moment[j+6] += ws_moment[j];
}
// deal with yplus
const int opposingNode = meSCS->opposingNodes(face_ordinal,ip);
const int nearestNode = face_node_ordinal_vec[ip];
// left and right nodes; right is on the face; left is the opposing node
stk::mesh::Entity nodeL = elem_node_rels[opposingNode];
stk::mesh::Entity nodeR = elem_node_rels[nearestNode];
// extract nodal fields
const double * coordL = stk::mesh::field_data(*coordinates_, nodeL );
const double * coordR = stk::mesh::field_data(*coordinates_, nodeR );
// determine yp (approximated by 1/4 distance along edge)
double ypBip = 0.0;
for ( int j = 0; j < nDim; ++j ) {
const double nj = ws_normal[j];
const double ej = 0.25*(coordR[j] - coordL[j]);
ypBip += nj*ej*nj*ej;
}
ypBip = std::sqrt(ypBip);
const double tauW = std::sqrt(tauTangential);
const double uTau = std::sqrt(tauW/rhoBip);
const double yplusBip = rhoBip*ypBip/muBip*uTau;
// nodal field
*yplus += yplusBip*areaFac;
// min and max
yplusMin = std::min(yplusMin, yplusBip);
yplusMax = std::max(yplusMax, yplusBip);
}
}
}
if ( processMe ) {
// parallel assemble and output
double g_force_moment[9] = {};
stk::ParallelMachine comm = NaluEnv::self().parallel_comm();
// Parallel assembly of L2
stk::all_reduce_sum(comm, &l_force_moment[0], &g_force_moment[0], 9);
// min/max
double g_yplusMin = 0.0, g_yplusMax = 0.0;
stk::all_reduce_min(comm, &yplusMin, &g_yplusMin, 1);
stk::all_reduce_max(comm, &yplusMax, &g_yplusMax, 1);
// deal with file name and banner
if ( NaluEnv::self().parallel_rank() == 0 ) {
std::ofstream myfile;
myfile.open(outputFileName_.c_str(), std::ios_base::app);
myfile << std::setprecision(6)
<< std::setw(w_)
<< currentTime << std::setw(w_)
<< g_force_moment[0] << std::setw(w_) << g_force_moment[1] << std::setw(w_) << g_force_moment[2] << std::setw(w_)
<< g_force_moment[3] << std::setw(w_) << g_force_moment[4] << std::setw(w_) << g_force_moment[5] << std::setw(w_)
<< g_force_moment[6] << std::setw(w_) << g_force_moment[7] << std::setw(w_) << g_force_moment[8] << std::setw(w_)
<< g_yplusMin << std::setw(w_) << g_yplusMax << std::endl;
myfile.close();
}
}
}
//--------------------------------------------------------------------------
//-------- execute ---------------------------------------------------------
//--------------------------------------------------------------------------
void
AssembleContinuityElemOpenSolverAlgorithm::execute()
{
stk::mesh::BulkData & bulk_data = realm_.bulk_data();
stk::mesh::MetaData & meta_data = realm_.meta_data();
const int nDim = meta_data.spatial_dimension();
// extract noc
const std::string dofName = "pressure";
const double includeNOC
= (realm_.get_noc_usage(dofName) == true) ? 1.0 : 0.0;
// space for LHS/RHS; nodesPerElem*nodesPerElem and nodesPerElem
std::vector<double> lhs;
std::vector<double> rhs;
std::vector<stk::mesh::Entity> connected_nodes;
// ip values; both boundary and opposing surface
std::vector<double> uBip(nDim);
std::vector<double> rho_uBip(nDim);
std::vector<double> GpdxBip(nDim);
std::vector<double> coordBip(nDim);
std::vector<double> coordScs(nDim);
// pointers to fixed values
double *p_uBip = &uBip[0];
double *p_rho_uBip = &rho_uBip[0];
double *p_GpdxBip = &GpdxBip[0];
double *p_coordBip = &coordBip[0];
double *p_coordScs = &coordScs[0];
// nodal fields to gather
std::vector<double> ws_coordinates;
std::vector<double> ws_pressure;
std::vector<double> ws_vrtm;
std::vector<double> ws_Gpdx;
std::vector<double> ws_density;
std::vector<double> ws_bcPressure;
// master element
std::vector<double> ws_shape_function;
std::vector<double> ws_shape_function_lhs;
std::vector<double> ws_face_shape_function;
// time step
const double dt = realm_.get_time_step();
const double gamma1 = realm_.get_gamma1();
const double projTimeScale = dt/gamma1;
// deal with interpolation procedure
const double interpTogether = realm_.get_mdot_interp();
const double om_interpTogether = 1.0-interpTogether;
// deal with state
ScalarFieldType &densityNp1 = density_->field_of_state(stk::mesh::StateNP1);
// define vector of parent topos; should always be UNITY in size
std::vector<stk::topology> parentTopo;
// define some common selectors
stk::mesh::Selector s_locally_owned_union = meta_data.locally_owned_part()
&stk::mesh::selectUnion(partVec_);
stk::mesh::BucketVector const& face_buckets =
realm_.get_buckets( meta_data.side_rank(), s_locally_owned_union );
for ( stk::mesh::BucketVector::const_iterator ib = face_buckets.begin();
ib != face_buckets.end() ; ++ib ) {
stk::mesh::Bucket & b = **ib ;
// extract connected element topology
b.parent_topology(stk::topology::ELEMENT_RANK, parentTopo);
ThrowAssert ( parentTopo.size() == 1 );
stk::topology theElemTopo = parentTopo[0];
// volume master element
MasterElement *meSCS = realm_.get_surface_master_element(theElemTopo);
const int nodesPerElement = meSCS->nodesPerElement_;
const int numScsIp = meSCS->numIntPoints_;
// face master element
MasterElement *meFC = realm_.get_surface_master_element(b.topology());
const int nodesPerFace = b.topology().num_nodes();
const int numScsBip = meFC->numIntPoints_;
std::vector<int> face_node_ordinal_vec(nodesPerFace);
// resize some things; matrix related
const int lhsSize = nodesPerElement*nodesPerElement;
const int rhsSize = nodesPerElement;
lhs.resize(lhsSize);
rhs.resize(rhsSize);
connected_nodes.resize(nodesPerElement);
// algorithm related; element
ws_coordinates.resize(nodesPerElement*nDim);
ws_pressure.resize(nodesPerElement);
ws_vrtm.resize(nodesPerFace*nDim);
ws_Gpdx.resize(nodesPerFace*nDim);
ws_density.resize(nodesPerFace);
ws_bcPressure.resize(nodesPerFace);
ws_shape_function.resize(numScsIp*nodesPerElement);
ws_shape_function_lhs.resize(numScsIp*nodesPerElement);
ws_face_shape_function.resize(numScsBip*nodesPerFace);
// pointers
double *p_lhs = &lhs[0];
double *p_rhs = &rhs[0];
double *p_coordinates = &ws_coordinates[0];
double *p_pressure = &ws_pressure[0];
double *p_vrtm = &ws_vrtm[0];
double *p_Gpdx = &ws_Gpdx[0];
double *p_density = &ws_density[0];
double *p_bcPressure = &ws_bcPressure[0];
double *p_shape_function = &ws_shape_function[0];
double *p_shape_function_lhs = shiftPoisson_ ? &ws_shape_function[0] : reducedSensitivities_ ? &ws_shape_function_lhs[0] : &ws_shape_function[0];
double *p_face_shape_function = &ws_face_shape_function[0];
// shape functions; interior
if ( shiftPoisson_ )
meSCS->shifted_shape_fcn(&p_shape_function[0]);
else
meSCS->shape_fcn(&p_shape_function[0]);
if ( !shiftPoisson_ && reducedSensitivities_ )
meSCS->shifted_shape_fcn(&p_shape_function_lhs[0]);
// shape functions; boundary
if ( shiftMdot_ )
meFC->shifted_shape_fcn(&p_face_shape_function[0]);
else
meFC->shape_fcn(&p_face_shape_function[0]);
const stk::mesh::Bucket::size_type length = b.size();
for ( stk::mesh::Bucket::size_type k = 0 ; k < length ; ++k ) {
// zero lhs/rhs
for ( int p = 0; p < lhsSize; ++p )
p_lhs[p] = 0.0;
for ( int p = 0; p < rhsSize; ++p )
p_rhs[p] = 0.0;
// get face
stk::mesh::Entity face = b[k];
//======================================
// gather nodal data off of face
//======================================
stk::mesh::Entity const * face_node_rels = bulk_data.begin_nodes(face);
int num_face_nodes = bulk_data.num_nodes(face);
// sanity check on num nodes
ThrowAssert( num_face_nodes == nodesPerFace );
for ( int ni = 0; ni < num_face_nodes; ++ni ) {
stk::mesh::Entity node = face_node_rels[ni];
// gather scalars
p_density[ni] = *stk::mesh::field_data(densityNp1, node);
p_bcPressure[ni] = *stk::mesh::field_data(*pressureBc_, node);
// gather vectors
const double * vrtm = stk::mesh::field_data(*velocityRTM_, node);
const double * Gjp = stk::mesh::field_data(*Gpdx_, node);
const int offSet = ni*nDim;
for ( int j=0; j < nDim; ++j ) {
p_vrtm[offSet+j] = vrtm[j];
p_Gpdx[offSet+j] = Gjp[j];
}
}
// pointer to face data
const double * areaVec = stk::mesh::field_data(*exposedAreaVec_, face);
// extract the connected element to this exposed face; should be single in size!
const stk::mesh::Entity* face_elem_rels = bulk_data.begin_elements(face);
ThrowAssert( bulk_data.num_elements(face) == 1 );
// get element; its face ordinal number and populate face_node_ordinal_vec
stk::mesh::Entity element = face_elem_rels[0];
const stk::mesh::ConnectivityOrdinal* face_elem_ords = bulk_data.begin_element_ordinals(face);
const int face_ordinal = face_elem_ords[0];
theElemTopo.side_node_ordinals(face_ordinal, face_node_ordinal_vec.begin());
// mapping from ip to nodes for this ordinal
const int *ipNodeMap = meSCS->ipNodeMap(face_ordinal);
//======================================
// gather nodal data off of element
//======================================
stk::mesh::Entity const * elem_node_rels = bulk_data.begin_nodes(element);
int num_nodes = bulk_data.num_nodes(element);
// sanity check on num nodes
ThrowAssert( num_nodes == nodesPerElement );
for ( int ni = 0; ni < num_nodes; ++ni ) {
stk::mesh::Entity node = elem_node_rels[ni];
// set connected nodes
connected_nodes[ni] = node;
// gather scalars
p_pressure[ni] = *stk::mesh::field_data(*pressure_, node);
// gather vectors
const double * coords = stk::mesh::field_data(*coordinates_, node);
const int offSet = ni*nDim;
for ( int j=0; j < nDim; ++j ) {
p_coordinates[offSet+j] = coords[j];
}
}
// loop over boundary ips
for ( int ip = 0; ip < numScsBip; ++ip ) {
const int nearestNode = ipNodeMap[ip];
const int opposingScsIp = meSCS->opposingFace(face_ordinal,ip);
// zero out vector quantities
for ( int j = 0; j < nDim; ++j ) {
p_uBip[j] = 0.0;
p_rho_uBip[j] = 0.0;
p_GpdxBip[j] = 0.0;
p_coordBip[j] = 0.0;
p_coordScs[j] = 0.0;
}
double rhoBip = 0.0;
// interpolate to bip
double pBip = 0.0;
const int offSetSF_face = ip*nodesPerFace;
for ( int ic = 0; ic < nodesPerFace; ++ic ) {
const int fn = face_node_ordinal_vec[ic];
const double r = p_face_shape_function[offSetSF_face+ic];
const double rhoIC = p_density[ic];
rhoBip += r*rhoIC;
pBip += r*p_bcPressure[ic];
const int offSetFN = ic*nDim;
const int offSetEN = fn*nDim;
for ( int j = 0; j < nDim; ++j ) {
p_uBip[j] += r*p_vrtm[offSetFN+j];
p_rho_uBip[j] += r*rhoIC*p_vrtm[offSetFN+j];
p_GpdxBip[j] += r*p_Gpdx[offSetFN+j];
p_coordBip[j] += r*p_coordinates[offSetEN+j];
}
}
// data at interior opposing face
double pScs = 0.0;
const int offSetSF_elem = opposingScsIp*nodesPerElement;
for ( int ic = 0; ic < nodesPerElement; ++ic ) {
const double r = p_shape_function[offSetSF_elem+ic];
pScs += r*p_pressure[ic];
const int offSet = ic*nDim;
for ( int j = 0; j < nDim; ++j ) {
p_coordScs[j] += r*p_coordinates[offSet+j];
}
}
// form axdx, asq and mdot (without dp/dn or noc)
double asq = 0.0;
double axdx = 0.0;
double mdot = 0.0;
for ( int j = 0; j < nDim; ++j ) {
const double dxj = p_coordBip[j] - p_coordScs[j];
const double axj = areaVec[ip*nDim+j];
asq += axj*axj;
axdx += axj*dxj;
mdot += (interpTogether*p_rho_uBip[j] + om_interpTogether*rhoBip*p_uBip[j]
+ projTimeScale*p_GpdxBip[j])*axj;
}
const double inv_axdx = 1.0/axdx;
// deal with noc
double noc = 0.0;
for ( int j = 0; j < nDim; ++j ) {
const double dxj = p_coordBip[j] - p_coordScs[j];
const double axj = areaVec[ip*nDim+j];
const double kxj = axj - asq*inv_axdx*dxj; // NOC
noc += kxj*p_GpdxBip[j];
}
// lhs for pressure system
int rowR = nearestNode*nodesPerElement;
for ( int ic = 0; ic < nodesPerElement; ++ic ) {
const double r = p_shape_function_lhs[offSetSF_elem+ic];
p_lhs[rowR+ic] += r*asq*inv_axdx;
}
// final mdot
mdot += -projTimeScale*((pBip-pScs)*asq*inv_axdx + noc*includeNOC);
// residual
p_rhs[nearestNode] -= mdot/projTimeScale;
}
apply_coeff(connected_nodes, rhs, lhs, __FILE__);
}
}
}
//--------------------------------------------------------------------------
//-------- execute ---------------------------------------------------------
//--------------------------------------------------------------------------
void
ComputeLowReynoldsSDRWallAlgorithm::execute()
{
stk::mesh::BulkData & bulk_data = realm_.bulk_data();
stk::mesh::MetaData & meta_data = realm_.meta_data();
const int nDim = meta_data.spatial_dimension();
// nodal fields to gather
std::vector<double> ws_density;
std::vector<double> ws_viscosity;
// master element
std::vector<double> ws_face_shape_function;
// deal with state
ScalarFieldType &densityNp1 = density_->field_of_state(stk::mesh::StateNP1);
// define vector of parent topos; should always be UNITY in size
std::vector<stk::topology> parentTopo;
// define some common selectors
stk::mesh::Selector s_locally_owned_union = meta_data.locally_owned_part()
&stk::mesh::selectUnion(partVec_);
stk::mesh::BucketVector const& face_buckets =
realm_.get_buckets( meta_data.side_rank(), s_locally_owned_union );
for ( stk::mesh::BucketVector::const_iterator ib = face_buckets.begin();
ib != face_buckets.end() ; ++ib ) {
stk::mesh::Bucket & b = **ib ;
// extract connected element topology
b.parent_topology(stk::topology::ELEMENT_RANK, parentTopo);
ThrowAssert ( parentTopo.size() == 1 );
stk::topology theElemTopo = parentTopo[0];
// extract master element
MasterElement *meSCS = realm_.get_surface_master_element(theElemTopo);
// face master element
MasterElement *meFC = realm_.get_surface_master_element(b.topology());
const int nodesPerFace = b.topology().num_nodes();
std::vector<int> face_node_ordinal_vec(nodesPerFace);
// algorithm related; element
ws_density.resize(nodesPerFace);
ws_viscosity.resize(nodesPerFace);
ws_face_shape_function.resize(nodesPerFace*nodesPerFace);
// pointers
double *p_density = &ws_density[0];
double *p_viscosity = &ws_viscosity[0];
double *p_face_shape_function = &ws_face_shape_function[0];
// shape functions
if ( useShifted_ )
meFC->shifted_shape_fcn(&p_face_shape_function[0]);
else
meFC->shape_fcn(&p_face_shape_function[0]);
const stk::mesh::Bucket::size_type length = b.size();
for ( stk::mesh::Bucket::size_type k = 0 ; k < length ; ++k ) {
// get face
stk::mesh::Entity face = b[k];
//======================================
// gather nodal data off of face
//======================================
stk::mesh::Entity const * face_node_rels = bulk_data.begin_nodes(face);
int num_face_nodes = bulk_data.num_nodes(face);
// sanity check on num nodes
ThrowAssert( num_face_nodes == nodesPerFace );
for ( int ni = 0; ni < num_face_nodes; ++ni ) {
stk::mesh::Entity node = face_node_rels[ni];
// gather scalars
p_density[ni] = *stk::mesh::field_data(densityNp1, node);
p_viscosity[ni] = *stk::mesh::field_data(*viscosity_, node);
}
// pointer to face data
const double * areaVec = stk::mesh::field_data(*exposedAreaVec_, face);
// extract the connected element to this exposed face; should be single in size!
const stk::mesh::Entity* face_elem_rels = bulk_data.begin_elements(face);
ThrowAssert( bulk_data.num_elements(face) == 1 );
// get element; its face ordinal number and populate face_node_ordinal_vec
stk::mesh::Entity element = face_elem_rels[0];
const int face_ordinal = bulk_data.begin_element_ordinals(face)[0];
theElemTopo.side_node_ordinals(face_ordinal, face_node_ordinal_vec.begin());
// get the relations off of element
stk::mesh::Entity const * elem_node_rels = bulk_data.begin_nodes(element);
// loop over face nodes
for ( int ip = 0; ip < num_face_nodes; ++ip ) {
const int offSetAveraVec = ip*nDim;
const int opposingNode = meSCS->opposingNodes(face_ordinal,ip);
const int nearestNode = face_node_ordinal_vec[ip];
// left and right nodes; right is on the face; left is the opposing node
stk::mesh::Entity nodeL = elem_node_rels[opposingNode];
stk::mesh::Entity nodeR = elem_node_rels[nearestNode];
// extract nodal fields
const double * coordL = stk::mesh::field_data(*coordinates_, nodeL );
const double * coordR = stk::mesh::field_data(*coordinates_, nodeR );
// aMag
double aMag = 0.0;
for ( int j = 0; j < nDim; ++j ) {
const double axj = areaVec[offSetAveraVec+j];
aMag += axj*axj;
}
aMag = std::sqrt(aMag);
// interpolate to bip
double rhoBip = 0.0;
double muBip = 0.0;
const int offSetSF_face = ip*nodesPerFace;
for ( int ic = 0; ic < nodesPerFace; ++ic ) {
const double r = p_face_shape_function[offSetSF_face+ic];
rhoBip += r*p_density[ic];
muBip += r*p_viscosity[ic];
}
const double nuBip = muBip/rhoBip;
// determine yp (approximated by 1/4 distance along edge)
double ypbip = 0.0;
for ( int j = 0; j < nDim; ++j ) {
const double nj = areaVec[offSetAveraVec+j]/aMag;
const double ej = 0.25*(coordR[j] - coordL[j]);
ypbip += nj*ej*nj*ej;
}
ypbip = std::sqrt(ypbip);
// compute low Re wall sdr
const double lowReSdr = wallFactor_*6.0*nuBip/betaOne_/ypbip/ypbip;
// assemble to nodal quantities; will normalize and assemble in driver
double * assembledWallArea = stk::mesh::field_data(*assembledWallArea_, nodeR );
double * sdrBc = stk::mesh::field_data(*sdrBc_, nodeR );
*assembledWallArea += aMag;
*sdrBc += lowReSdr*aMag;
}
}
}
}
