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fix for inlet/outlet

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This commit is contained in:
eap 2022-06-29 18:29:30 +03:00
parent d5d777a7f9
commit 4430578f93
3 changed files with 251 additions and 67 deletions
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4
src/StdMeshers/StdMeshers_Cartesian_3D.cxx
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@ -6403,10 +6403,10 @@ bool StdMeshers_Cartesian_3D::Compute(SMESH_Mesh & theMesh,
const StdMeshers_ViscousLayers* hypViscousLayers = _hypViscousLayers;
_hypViscousLayers = nullptr;
StdMeshers_Cartesian_VL::ViscousBuilder builder( hypViscousLayers );
StdMeshers_Cartesian_VL::ViscousBuilder builder( hypViscousLayers, theMesh, theShape );
std::string error;
TopoDS_Shape offsetShape = builder.MakeOffsetShape( theShape, error );
TopoDS_Shape offsetShape = builder.MakeOffsetShape( theShape, theMesh, error );
if ( offsetShape.IsNull() )
throw SALOME_Exception( error );

288
src/StdMeshers/StdMeshers_Cartesian_VL.cxx
View File

@ -85,6 +85,7 @@ namespace
TopoDS_Shape _initShape;
TopoDS_Shape _offsetShape;
int _initShapeID;
bool _hasVL;
bool _toCheckCoinc; // to check if nodes on shape boundary coincide
};
@ -241,11 +242,8 @@ namespace
*/
//================================================================================
bool computeVLHeight( const StdMeshers_ViscousLayers* hyp,
SMESHDS_Mesh * mesh,
const TopoDS_Shape & shape,
std::vector< double > & vlH,
std::set< TGeomID > & shapesWVL )
void computeVLHeight( const StdMeshers_ViscousLayers* hyp,
std::vector< double > & vlH )
{
const double T = hyp->GetTotalThickness();
const double f = hyp->GetStretchFactor();
@ -257,35 +255,6 @@ namespace
for ( double h = h0 * f; (int)vlH.size() < N-1; h *= f )
vlH.push_back( h + vlH.back() );
vlH.push_back( T );
TopTools_IndexedMapOfShape faces;
TopExp::MapShapes( shape, TopAbs_FACE, faces );
if ( hyp->IsToIgnoreShapes() )
{
for ( int i = 1; i <= faces.Size(); ++i )
shapesWVL.insert( mesh->ShapeToIndex( faces( i )));
for ( TGeomID& sID : hyp->GetBndShapes() )
shapesWVL.erase( sID );
}
else
{
for ( TGeomID& sID : hyp->GetBndShapes() )
shapesWVL.insert( sID );
}
for ( TGeomID fID : shapesWVL )
{
const TopoDS_Shape & face = mesh->IndexToShape( fID );
for ( TopExp_Explorer exp( face, TopAbs_EDGE ); exp.More(); exp.Next() )
shapesWVL.insert( mesh->ShapeToIndex( exp.Current() ));
for ( TopExp_Explorer exp( face, TopAbs_VERTEX ); exp.More(); exp.Next() )
shapesWVL.insert( mesh->ShapeToIndex( exp.Current() ));
}
return !shapesWVL.empty();
}
//================================================================================
@ -491,6 +460,75 @@ namespace
return true;
}
//================================================================================
/*!
* \brief Create faces from edges
* \param [inout] theEOS - shape to treat
* \param [inout] theMesh - offset mesh to fill in
* \param [inout] theN2E - map of node to VLEdge
* \param [inout] theFaceID - ID of WOVL FACE for new faces to set on
* \return bool - ok
*/
//================================================================================
bool makeFaces( VLEdgesOnShape & theEOS,
SMESH_Mesh* theMesh,
TNode2VLEdge & theN2E,
const TGeomID theFaceID)
{
SMESHDS_SubMesh* sm = theMesh->GetMeshDS()->MeshElements( theEOS._offsetShape );
if ( !sm || sm->NbElements() == 0 )
return true;
SMESH_MeshEditor editor( theMesh );
SMESH_MeshEditor::ElemFeatures elem2D( SMDSAbs_Face );
std::vector< const SMDS_MeshNode* > fNodes( 4 );
std::vector<const SMDS_MeshElement *> foundVolum;
std::vector< VLEdge*> edgesVec;
for ( SMDS_ElemIteratorPtr eIt = sm->GetElements(); eIt->more(); )
{
const SMDS_MeshElement* edge = eIt->next();
if ( edge->GetType() != SMDSAbs_Edge )
continue;
const int nbNodes = 2; //edge->NbCornerNodes();
edgesVec.resize( nbNodes );
fNodes.resize( nbNodes * 2 );
for ( int i = 0; i < nbNodes; ++i )
{
const SMDS_MeshNode* n = edge->GetNode( i );
if ( !theN2E.IsBound( n ))
return false;
edgesVec[ i ] = theN2E( n );
}
size_t nbFaces = edgesVec[0]->_nodes.size() - 1;
for ( size_t iF = 0; iF < nbFaces; ++iF )
{
fNodes[ 0 ] = edgesVec[ 0 ]->_nodes[ iF ].Node();
fNodes[ 1 ] = edgesVec[ 1 ]->_nodes[ iF ].Node();
fNodes[ 2 ] = edgesVec[ 1 ]->_nodes[ iF + 1 ].Node();
fNodes[ 3 ] = edgesVec[ 0 ]->_nodes[ iF + 1 ].Node();
if ( const SMDS_MeshElement* face = editor.AddElement( fNodes, elem2D ))
{
theMesh->GetMeshDS()->SetMeshElementOnShape( face, theFaceID );
if ( SMDS_Mesh::GetElementsByNodes( fNodes, foundVolum, SMDSAbs_Volume ))
{
TIDSortedElemSet faces = { face }, volumes = { foundVolum[0] };
editor.Reorient2DBy3D( faces, volumes, /*outside=*/true );
}
}
}
editor.ClearLastCreated();
// move the face to the top of prisms, on mesh boundary
//theMesh->GetMeshDS()->ChangeElementNodes( face, fNodes.data(), nbNodes );
}
return true;
}
//================================================================================
/*!
* \brief Append the offset mesh to the initial one
@ -594,12 +632,13 @@ namespace
const int nbNodes = offElem->NbCornerNodes();
iniNodes.resize( nbNodes );
iniNodesBnd.resize( nbNodes );
//edgesVec.resize( nbNodes );
for ( int i = 0; i < nbNodes; ++i )
{
const SMDS_MeshNode* nOff = offElem->GetNode( i );
const SMDS_MeshNode* nIni = initMDS->FindNode( nOff->GetID() + theNShift );
iniNodes[ i ] = nIni;
if ( !theN2E.IsBound( nOff ))
break;
VLEdge* vlEd = theN2E( nOff );
const SMDS_MeshNode* nOffBnd = vlEd->_nodes.back().Node();
const SMDS_MeshNode* nIniBnd = initMDS->FindNode( nOffBnd->GetID() + theNShift );
@ -619,6 +658,80 @@ namespace
}
return;
}
//================================================================================
/*!
* \brief set elements of WOVL face to sub-meshes
* \param [in] theEOS - vlEdges of a sub-shape
* \param [inout] theMesh - the mesh
* \param [in] theN2E - map of node to vlEdge
* \param [in] theNShift - nb of nodes in the mesh before adding the offset mesh
*/
//================================================================================
void setBnd2FVWL( VLEdgesOnShape & theEOS,
SMESH_Mesh* theInitMesh,
SMESH_Mesh* theOffsMesh,
//const TNode2VLEdge & theN2E,
const smIdType theNShift )
{
SMESHDS_Mesh* offsetMDS = theOffsMesh->GetMeshDS();
SMESHDS_Mesh* initMDS = theInitMesh->GetMeshDS();
SMESHDS_SubMesh* sm = offsetMDS->MeshElements( theEOS._offsetShape );
if ( !sm || ( sm->NbElements() + sm->NbNodes() == 0 ))
return;
for ( SMDS_NodeIteratorPtr nIt = sm->GetNodes(); nIt->more(); )
{
const SMDS_MeshNode* offNode = nIt->next();
const SMDS_MeshNode* iniNode = initMDS->FindNode( offNode->GetID() + theNShift );
initMDS->UnSetNodeOnShape( iniNode );
switch( theEOS._initShape.ShapeType() ) {
case TopAbs_FACE: initMDS->SetNodeOnFace( iniNode, TopoDS::Face( theEOS._initShape ));
break;
case TopAbs_EDGE: initMDS->SetNodeOnEdge( iniNode, TopoDS::Edge( theEOS._initShape ));
break;
case TopAbs_VERTEX: initMDS->SetNodeOnVertex( iniNode, TopoDS::Vertex( theEOS._initShape ));
break;
default:;
}
}
std::vector< const SMDS_MeshNode* > iniNodes;
for ( SMDS_ElemIteratorPtr eIt = sm->GetElements(); eIt->more(); )
{
const SMDS_MeshElement* offElem = eIt->next();
// if ( offElem->GetType() != SMDSAbs_Face )
// continue;
int nbNodes = offElem->NbCornerNodes();
iniNodes.resize( nbNodes );
for ( int i = 0; i < nbNodes; ++i )
{
const SMDS_MeshNode* nOff = offElem->GetNode( i );
const SMDS_MeshNode* nIni = initMDS->FindNode( nOff->GetID() + theNShift );
iniNodes[ i ] = nIni;
}
if ( const SMDS_MeshElement* iniElem = initMDS->FindElement( iniNodes ))
{
initMDS->UnSetElementOnShape( iniElem );
initMDS->SetMeshElementOnShape( iniElem, theEOS._initShapeID );
for ( const SMDS_MeshNode* n : iniNodes )
if ( n->GetPosition()->GetDim() == 3 )
{
initMDS->UnSetNodeOnShape( n );
if ( theEOS._initShape.ShapeType() == TopAbs_FACE )
initMDS->SetNodeOnFace( n, theEOS._initShapeID );
else
initMDS->SetNodeOnEdge( n, theEOS._initShapeID );
}
}
}
return;
}
} // namespace
@ -639,9 +752,50 @@ SMESH_Mesh* StdMeshers_Cartesian_VL::ViscousBuilder::MakeOffsetMesh()
*/
//================================================================================
StdMeshers_Cartesian_VL::ViscousBuilder::ViscousBuilder( const StdMeshers_ViscousLayers* hyp )
StdMeshers_Cartesian_VL::ViscousBuilder::ViscousBuilder( const StdMeshers_ViscousLayers* hyp,
const SMESH_Mesh & mainMesh,
const TopoDS_Shape & mainShape)
: _hyp( hyp ), _offsetMesh( new TmpMesh )
{
// find shapes with viscous layers
TopTools_IndexedMapOfShape faces;
TopExp::MapShapes( mainShape, TopAbs_FACE, faces );
const SMESHDS_Mesh* iniMDS = mainMesh.GetMeshDS();
if ( hyp->IsToIgnoreShapes() )
{
for ( int i = 1; i <= faces.Size(); ++i )
_shapesWVL.insert( iniMDS->ShapeToIndex( faces( i )));
for ( TGeomID& sID : hyp->GetBndShapes() )
_shapesWVL.erase( sID );
}
else
{
for ( TGeomID& sID : hyp->GetBndShapes() )
_shapesWVL.insert( sID );
}
for ( TGeomID fID : _shapesWVL )
{
const TopoDS_Shape & face = iniMDS->IndexToShape( fID );
for ( TopExp_Explorer exp( face, TopAbs_EDGE ); exp.More(); exp.Next() )
_shapesWVL.insert( iniMDS->ShapeToIndex( exp.Current() ));
for ( TopExp_Explorer exp( face, TopAbs_VERTEX ); exp.More(); exp.Next() )
_shapesWVL.insert( iniMDS->ShapeToIndex( exp.Current() ));
}
// find EDGE and adjacent FACEs w/o VL
for ( int i = 1; i <= faces.Size(); ++i )
{
const TopoDS_Shape& face = faces( i );
TGeomID fID = iniMDS->ShapeToIndex( face );
if ( _shapesWVL.count( fID ))
continue;
for ( TopExp_Explorer exp( face, TopAbs_EDGE ); exp.More(); exp.Next() )
_edge2facesWOVL[ iniMDS->ShapeToIndex( exp.Current() )].push_back( fID );
}
return;
}
//================================================================================
@ -659,6 +813,7 @@ StdMeshers_Cartesian_VL::ViscousBuilder::~ViscousBuilder()
/*!
* \brief Create an offset shape from a given one
* \param [in] theShape - input shape
* \param [in] theMesh - main mesh
* \param [out] theError - error description
* \return TopoDS_Shape - result offset shape
*/
@ -666,32 +821,30 @@ StdMeshers_Cartesian_VL::ViscousBuilder::~ViscousBuilder()
TopoDS_Shape
StdMeshers_Cartesian_VL::ViscousBuilder::MakeOffsetShape(const TopoDS_Shape & theShape,
SMESH_Mesh & theMesh,
std::string & theError )
{
// TopoDS_Shape S = theShape;
// BRep_Builder aBuilder;
// TopoDS_Compound comp;
// aBuilder.MakeCompound( comp );
// for ( TopExp_Explorer e( theShape, TopAbs_FACE); e.More(); e.Next() )
// {
// aBuilder.Add( comp, e.Current());
// e.Next();
// if ( !e.More() )
// break;
// }
// S = comp;
double offset = -_hyp->GetTotalThickness();
double tol = Precision::Confusion();
_makeOffset.Initialize( theShape, offset, tol, BRepOffset_Skin, /*Intersection=*/false,
/*selfInter=*/false, GeomAbs_Intersection );
// exclude inlet FACEs
SMESHDS_Mesh* meshDS = theMesh.GetMeshDS();
for ( TopExp_Explorer fEx( theShape, TopAbs_FACE ); fEx.More(); fEx.Next() )
{
TGeomID fID = meshDS->ShapeToIndex( fEx.Current() );
if ( !_shapesWVL.count( fID ))
_makeOffset.SetOffsetOnFace( TopoDS::Face( fEx.Current()), 0 );
}
_makeOffset.MakeOffsetShape();
if ( _makeOffset.IsDone() )
{
_offsetShape = _makeOffset.Shape();
SMESH_MesherHelper::WriteShape( _offsetShape );////
_offsetMesh->ShapeToMesh( _offsetShape );
_offsetMesh->GetSubMesh( _offsetShape )->DependsOn();
//SMESH_MesherHelper::WriteShape( _offsetShape );
return _offsetShape;
}
@ -752,11 +905,9 @@ bool StdMeshers_Cartesian_VL::ViscousBuilder::MakeViscousLayers( SMESH_Mesh &
SMESHDS_Mesh* initMDS = theMesh.GetMeshDS();
offsetMDS->SetAllCellsNotMarked();
// Compute heights of viscous layers and finds FACEs with VL
// Compute heights of viscous layers
std::vector< double > vlH;
std::set< int > shapesWVL;
if ( !computeVLHeight( _hyp, initMDS, theShape, vlH, shapesWVL ))
return false;
computeVLHeight( _hyp, vlH );
std::vector< VLEdgesOnShape > edgesOnShape;
edgesOnShape.reserve( offsetMDS->MaxShapeIndex() + 1 );
@ -776,7 +927,10 @@ bool StdMeshers_Cartesian_VL::ViscousBuilder::MakeViscousLayers( SMESH_Mesh &
EOS._initShape = shapes( i );
EOS._offsetShape = getOffsetSubShape( EOS._initShape );
EOS._initShapeID = initMDS->ShapeToIndex( EOS._initShape );
EOS._hasVL = _shapesWVL.count( EOS._initShapeID );
EOS._toCheckCoinc = false;
if ( !EOS._hasVL )
continue;
// project boundary nodes of offset mesh to boundary of init mesh
// (new nodes are created in the offset mesh)
@ -809,7 +963,7 @@ bool StdMeshers_Cartesian_VL::ViscousBuilder::MakeViscousLayers( SMESH_Mesh &
// create nodes of layers
if ( _hyp->GetNumberLayers() > 1 )
{
if ( shapesWVL.count( EOS._initShapeID ))
//if ( _shapesWVL.count( EOS._initShapeID ))
for ( size_t i = 0; i < EOS._edges.size(); ++i )
{
divideVLEdge( &EOS._edges[ i ], vlH, offsetMDS );
@ -823,12 +977,31 @@ bool StdMeshers_Cartesian_VL::ViscousBuilder::MakeViscousLayers( SMESH_Mesh &
for ( size_t i = 0; i < edgesOnShape.size(); ++i )
{
VLEdgesOnShape& EOS = edgesOnShape[ i ];
if ( EOS._initShape.ShapeType() == TopAbs_FACE )
if ( EOS._initShape.ShapeType() == TopAbs_FACE && EOS._hasVL )
{
if ( !makePrisms( EOS, _offsetMesh, n2e ))
prismsOk = false;
}
}
if ( prismsOk )
{
// create faces on FACEs WOVL
for ( size_t i = 0; i < edgesOnShape.size(); ++i )
{
VLEdgesOnShape& EOS = edgesOnShape[ i ];
if ( EOS._initShape.ShapeType() == TopAbs_EDGE && EOS._hasVL )
{
auto e2f = _edge2facesWOVL.find( EOS._initShapeID );
if ( e2f != _edge2facesWOVL.end() && !e2f->second.empty() )
{
TopoDS_Shape f = initMDS->IndexToShape( e2f->second[0] );
TopoDS_Shape f2 = getOffsetSubShape( f );
//cout << e2f->second[0] << " OFF " << offsetMDS->ShapeToIndex( f2 ) << endl;
makeFaces( EOS, _offsetMesh, n2e, offsetMDS->ShapeToIndex( f2 ) );
}
}
}
}
// copy offset mesh to the main one
initMDS->Modified();
@ -854,7 +1027,10 @@ bool StdMeshers_Cartesian_VL::ViscousBuilder::MakeViscousLayers( SMESH_Mesh &
for ( size_t i = 0; i < edgesOnShape.size(); ++i )
{
VLEdgesOnShape& EOS = edgesOnShape[ i ];
if ( EOS._hasVL )
setBnd2Sub( EOS, &theMesh, _offsetMesh, n2e, nShift, nodesToCheckCoinc );
else
setBnd2FVWL( EOS, &theMesh, _offsetMesh, nShift );
}
// merge coincident nodes

10
src/StdMeshers/StdMeshers_Cartesian_VL.hxx
View File

@ -27,6 +27,9 @@
#define __StdMeshers_Cartesian_VL_HXX__
#include <BRepOffset_MakeOffset.hxx>
#include <set>
#include <map>
#include <vector>
class StdMeshers_ViscousLayers;
class SMESH_Mesh;
@ -37,10 +40,13 @@ namespace StdMeshers_Cartesian_VL
{
public:
ViscousBuilder( const StdMeshers_ViscousLayers* hypViscousLayers );
ViscousBuilder( const StdMeshers_ViscousLayers* hypViscousLayers,
const SMESH_Mesh & theMesh,
const TopoDS_Shape & theShape);
~ViscousBuilder();
TopoDS_Shape MakeOffsetShape(const TopoDS_Shape & theShape,
SMESH_Mesh & theMesh,
std::string & theError );
SMESH_Mesh* MakeOffsetMesh();
@ -56,6 +62,8 @@ namespace StdMeshers_Cartesian_VL
BRepOffset_MakeOffset _makeOffset;
SMESH_Mesh* _offsetMesh;
TopoDS_Shape _offsetShape;
std::set< int > _shapesWVL; // shapes with viscous layers
std::map< int, std::vector< int > > _edge2facesWOVL; // EDGE 2 FACEs w/o VL
};
}