Public Member Functions | Static Public Member Functions | Private Types | Private Member Functions | Static Private Member Functions | Private Attributes
boundaryLayerOptimisation Class Reference
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Public Member Functions

 boundaryLayerOptimisation (polyMeshGen &mesh)
 construct from polyMeshGen More...
 
 boundaryLayerOptimisation (polyMeshGen &mesh, const meshSurfaceEngine &)
 Construct from polyMeshGen and meshSurfaceEngine. More...
 
 ~boundaryLayerOptimisation ()
 
void setMaxNumIterations (const label maxNumIterations)
 set the maximum number of iterations More...
 
void setNumNormalsSmoothingIterations (const label nSmoothNormal)
 set the number of normal smoothing iterations (default is 5) More...
 
void recalculateNormals (const bool)
 shall normals be re-calculated (default true) More...
 
void setRelativeThicknessTolerance (const scalar)
 set the relative thickness tolerance (default 0.15) More...
 
void setFeatureSizeFactor (const scalar)
 set the feature size factor (default 0.3) More...
 
const edgeLongList & hairEdges () const
 return hair edges More...
 
const VRWGraph & hairEdgesAtBndPoint () const
 hair edges attached to a boundary point More...
 
const boolList & isBaseFace () const
 
const boolList & isExitFace () const
 boundary faces where the layers exit at the boundary More...
 
void optimiseLayer ()
 performs boundary layer optimisation More...
 

Static Public Member Functions

static void readSettings (const dictionary &, boundaryLayerOptimisation &)
 read the settings from dictionary More...
 

Private Types

enum  hairEdgeTypes_ {
  NONE = 0, ATEDGE = 1, ATCORNER = 2, BOUNDARY = 4,
  INSIDE = 8, FEATUREEDGE = 16
}
 
typedef std::map< label, std::pair< point, scalar > > patchNormalType
 
typedef std::map< label, patchNormalType > pointNormalsType
 

Private Member Functions

const meshSurfaceEngine & meshSurface () const
 access to mesh surface More...
 
const meshSurfacePartitioner & surfacePartitioner () const
 access to meshSurfacePartitioner More...
 
void calculateNormalVectors (const direction eType, pointNormalsType &) const
 
void calculateNormalVectorsSmother (const direction eType, pointNormalsType &)
 calculate normal vectors More...
 
void calculateHairEdges ()
 calculate hairEdges More...
 
void calculateHairVectorsAtTheBoundary (vectorField &)
 calculate hair vectors at the boundary More...
 
void optimiseHairNormalsAtTheBoundary ()
 
void optimiseHairNormalsInside ()
 optimise hair normals inside the mesh More...
 
void hairEdgesAtBndFace (const label cellI, const label baseFaceI, DynList< edge > &) const
 calculate hair edges at a boundary faces More...
 
scalar calculateThickness (const label heI, const label heJ) const
 
scalar calculateThicknessOverCell (const label heI, const label cellI, const label baseFaceI) const
 
void optimiseThicknessVariation (const direction edgeType=(INSIDE|BOUNDARY))
 optimise thickness variation More...
 
bool optimiseLayersAtExittingFaces ()
 optimise layers at exitting faces due to requests from the inside More...
 
void writeHairEdges (const fileName &fName, const direction eType, const vectorField &vecs) const
 write vector correcposing to hair edges. Helper for debugging More...
 
void writeHairEdges (const fileName &fName, const direction eType) const
 write selected hair edges into a file More...
 
 boundaryLayerOptimisation (const boundaryLayerOptimisation &)
 Disallow default bitwise copy construct. More...
 
void operator= (const boundaryLayerOptimisation &)
 Disallow default bitwise assignment. More...
 

Static Private Member Functions

static void writeVTK (const fileName &fName, const pointField &origin, const vectorField &vecs)
 write vectors into a VTK file. Helper for debugging More...
 

Private Attributes

polyMeshGen & mesh_
 reference to polyMeshGen More...
 
const meshSurfaceEngine * meshSurfacePtr_
 const pointer to meshSurfaceEngine More...
 
const bool deleteMeshSurface_
 
const meshSurfacePartitioner * partitionerPtr_
 mesh surface partitioner More...
 
edgeLongList hairEdges_
 boundary layer hairs More...
 
VRWGraph hairEdgesAtBndPoint_
 hair edges attached to a boundary point More...
 
VRWGraph hairEdgesNearHairEdge_
 hair edge to other hair edges More...
 
boolList isBndLayerBase_
 is boundary face a base for a prism in the bnd layer More...
 
boolList isExitFace_
 is boundary face part of a layer where a layer exits More...
 
List< direction > hairEdgeType_
 classification of hair edges More...
 
boolList thinnedHairEdge_
 stores information where boundary hairs are made thinner More...
 
label maxNumIterations_
 maximum number of iterations More...
 
label nSmoothNormals_
 number of iterations for smoothing of hairs More...
 
scalar relThicknessTol_
 relative tolerance for thickness variation More...
 
scalar featureSizeFactor_
 feature size factor used for curvature-based optimisation More...
 
bool reCalculateNormals_
 activate calculation of normals More...
 

Detailed Description

Definition at line 62 of file boundaryLayerOptimisation.H.

Member Typedef Documentation

◆ patchNormalType

typedef std::map<label, std::pair<point, scalar> > patchNormalType
private

calculate normal vector for all patches at a point points can be filtered by a type of hair edges

Definition at line 120 of file boundaryLayerOptimisation.H.

◆ pointNormalsType

typedef std::map<label, patchNormalType> pointNormalsType
private

Definition at line 121 of file boundaryLayerOptimisation.H.

Member Enumeration Documentation

◆ hairEdgeTypes_

enum hairEdgeTypes_
private
Enumerator
NONE 
ATEDGE 
ATCORNER 
BOUNDARY 
INSIDE 
FEATUREEDGE 

Definition at line 210 of file boundaryLayerOptimisation.H.

Constructor & Destructor Documentation

◆ boundaryLayerOptimisation() [1/3]

boundaryLayerOptimisation ( const boundaryLayerOptimisation &  )
private

Disallow default bitwise copy construct.

◆ boundaryLayerOptimisation() [2/3]

boundaryLayerOptimisation ( polyMeshGen &  mesh)

construct from polyMeshGen

Definition at line 40 of file boundaryLayerOptimisation.C.

References boundaryLayerOptimisation::calculateHairEdges().

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◆ boundaryLayerOptimisation() [3/3]

boundaryLayerOptimisation ( polyMeshGen &  mesh,
const meshSurfaceEngine &  mse 
)

Construct from polyMeshGen and meshSurfaceEngine.

Definition at line 63 of file boundaryLayerOptimisation.C.

◆ ~boundaryLayerOptimisation()

~boundaryLayerOptimisation ( )

Definition at line 90 of file boundaryLayerOptimisation.C.

References Foam::deleteDemandDrivenData(), boundaryLayerOptimisation::deleteMeshSurface_, boundaryLayerOptimisation::meshSurfacePtr_, and boundaryLayerOptimisation::partitionerPtr_.

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Member Function Documentation

◆ meshSurface()

const meshSurfaceEngine & meshSurface ( ) const
private

access to mesh surface

Definition at line 187 of file boundaryLayerOptimisationFunctions.C.

References Foam::abort(), Foam::FatalError, FatalErrorIn, boundaryLayerOptimisation::mesh_, and boundaryLayerOptimisation::meshSurfacePtr_.

Referenced by boundaryLayerOptimisation::calculateHairEdges(), boundaryLayerOptimisation::optimiseHairNormalsAtTheBoundary(), boundaryLayerOptimisation::optimiseHairNormalsInside(), boundaryLayerOptimisation::optimiseLayer(), and boundaryLayerOptimisation::surfacePartitioner().

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◆ surfacePartitioner()

const meshSurfacePartitioner & surfacePartitioner ( ) const
private

access to meshSurfacePartitioner

Definition at line 207 of file boundaryLayerOptimisationFunctions.C.

References Foam::abort(), Foam::FatalError, FatalErrorIn, boundaryLayerOptimisation::meshSurface(), and boundaryLayerOptimisation::partitionerPtr_.

Referenced by boundaryLayerOptimisation::calculateHairEdges().

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◆ calculateNormalVectors()

void calculateNormalVectors ( const direction  eType,
pointNormalsType &  pointPatchNormal 
) const
private

calculate point normals with respect to all patches at a point

create an entry in a map

sum normals of faces attached to a point

gather information about face normals on other processors

finally, calculate normal vectors

Definition at line 55 of file boundaryLayerOptimisationNormals.C.

References meshSurfaceEngine::boundaryFacePatches(), meshSurfaceEngine::bp(), meshSurfaceEngine::bpAtProcs(), meshSurfaceEngine::bpNeiProcs(), labelledPointScalar::coordinates(), Foam::help::exchangeMap(), meshSurfaceEngine::faceNormals(), forAll, forAllConstIter(), forAllIter, forAllRow, meshSurfaceEngine::globalToLocalBndPointAddressing(), refLabelledPointScalar::lps(), Foam::mag(), UPstream::myProcNo(), refLabelledPointScalar::objectLabel(), UPstream::parRun(), meshSurfaceEngine::pointFaces(), labelledPointScalar::pointLabel(), and labelledPointScalar::scalarValue().

Referenced by boundaryLayerOptimisation::optimiseHairNormalsInside().

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◆ calculateNormalVectorsSmother()

void calculateNormalVectorsSmother ( const direction  eType,
pointNormalsType &  pointPatchNormal 
)
private

calculate normal vectors

create an entry in a map

find patches at this point

create points

create points originating from triangles

create a new tetrahedron

create partTeMeshSimplex

activate volume optimizer

Definition at line 196 of file boundaryLayerOptimisationNormals.C.

References DynList< T, staticSize >::append(), DynList< T, staticSize >::appendIfNotIn(), meshSurfaceEngine::bp(), partTetMeshSimplex::centrePoint(), Foam::endl(), forAll, forAllRow, he, Foam::Info, Foam::mag(), partTriMesh::meshSurfacePointLabelInTriMesh(), n, volumeOptimizer::optimizeNodePosition(), partTriMesh::pointLabelInMeshSurface(), points, partTriMesh::points(), meshSurfaceEngine::points(), partTriMesh::pointTriangles(), labelledTri::region(), DynList< T, staticSize >::size(), meshSurfacePartitioner::surfaceEngine(), and partTriMesh::triangles().

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◆ calculateHairEdges()

void calculateHairEdges ( )
private

calculate hairEdges

detect layers in the mesh

mark boundary faces which are base face for the boundary layer

check if a face is an exiting face for a bnd layer

avoid edges at inter-processor boundaries

both faces have to be part of the same cell

check if the feature edge is attachd to exittin faces

classify hair edges as they require different tretment in the smoothing procedure

check if it is a boundary edge

calculate which other hair edges influence a hair edges and store it in a graph

find mesh faces comprising of the current hair edge

face must be a quad

check if the current face comprises of the hair edge

check if the opposite edge is also a hair edge

Definition at line 226 of file boundaryLayerOptimisationFunctions.C.

References polyMeshGenFaces::addFaceSubset(), polyMeshGenFaces::addFaceToSubset(), polyMeshGenPoints::addPointSubset(), polyMeshGenPoints::addPointToSubset(), DynList< T, staticSize >::append(), VRWGraph::appendIfNotIn(), boundaryLayerOptimisation::ATCORNER, boundaryLayerOptimisation::ATEDGE, polyMeshGenFaces::boundaries(), boundaryLayerOptimisation::BOUNDARY, meshSurfaceEngine::boundaryFaces(), meshSurfaceEngine::boundaryPointEdges(), meshSurfaceEngine::bp(), Foam::constant::universal::c, cells, polyMeshGenCells::cells(), meshSurfacePartitioner::corners(), Foam::e, meshSurfaceEngine::edgeFaces(), meshSurfacePartitioner::edgePoints(), meshSurfaceEngine::edges(), f(), f1, detectBoundaryLayers::faceInLayer(), meshSurfaceEngine::faceOwners(), polyMeshGenFaces::faces(), boundaryLayerOptimisation::FEATUREEDGE, meshSurfacePartitioner::featureEdges(), forAll, forAllRow, HashTable::found(), detectBoundaryLayers::hairEdges(), boundaryLayerOptimisation::hairEdges_, detectBoundaryLayers::hairEdgesAtBndPoint(), boundaryLayerOptimisation::hairEdgesAtBndPoint_, boundaryLayerOptimisation::hairEdgesNearHairEdge_, boundaryLayerOptimisation::hairEdgeType_, boundaryLayerOptimisation::INSIDE, boundaryLayerOptimisation::isBndLayerBase_, boundaryLayerOptimisation::isExitFace_, boundaryLayerOptimisation::mesh_, boundaryLayerOptimisation::meshSurface(), boundaryLayerOptimisation::NONE, VRWGraph::setRow(), List::setSize(), VRWGraph::setSize(), List::size(), LongList< T, Offset >::size(), VRWGraph::size(), UList::size(), VRWGraph::sizeOfRow(), boundaryLayerOptimisation::surfacePartitioner(), boundaryLayerOptimisation::thinnedHairEdge_, and polyMeshGen::write().

Referenced by boundaryLayerOptimisation::boundaryLayerOptimisation().

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◆ calculateHairVectorsAtTheBoundary()

void calculateHairVectorsAtTheBoundary ( vectorField &  hairVecs)
private

calculate hair vectors at the boundary

set the size of hairVecs

do not modify hair vectors at feature edges

this is a case of O-layer at a corner or feature edge

find the surface edges corresponding to the hair edge

find the vector at the same angle from both feature edges

collect data at inter-processor boundaries

filte out edges which are not relevant

calculate new normal vectors

Definition at line 323 of file boundaryLayerOptimisationNormals.C.

References Foam::abort(), LongList< T, Offset >::append(), meshSurfaceEngine::boundaryFaces(), meshSurfaceEngine::boundaryPointEdges(), meshSurfaceEngine::bp(), labelledPoint::coordinates(), Foam::e, meshSurfaceEngine::edgeFaces(), meshSurfaceEngine::edges(), Foam::endl(), Foam::help::exchangeMap(), face::faceEdge(), Foam::FatalError, FatalErrorIn, forAll, forAllConstIter(), forAllRow, found, meshSurfaceEngine::globalToLocalBndPointAddressing(), he, Foam::Info, Foam::mag(), UPstream::myProcNo(), face::normal(), UPstream::parRun(), labelledPoint::pointLabel(), points, Foam::pos(), face::prevLabel(), edge::vec(), face::which(), and Vector< scalar >::zero.

Referenced by boundaryLayerOptimisation::optimiseHairNormalsAtTheBoundary().

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◆ optimiseHairNormalsAtTheBoundary()

void optimiseHairNormalsAtTheBoundary ( )
private

optimise hair normals at the boundary these are the regions where boundary layers exit the domain

calculate direction of hair vector based on the surface normal

calculate hair vectors they point in the normal direction to the surface

calulate new normal vectors

keep existing hair vectors

smooth the variation of normals to reduce the twisting of faces

hair vectors at feature edges must not be modified

find the best fitting vector at the surface of the mesh

check if the neighbour hair edge shares a boundary face with the current hair edge

collect data at inter-processor boundaries

filte out edges which are not relevant

calculate new normal vectors

transfer new hair vectors to the hairVecs list

move vertices to the new locations

Definition at line 552 of file boundaryLayerOptimisationNormals.C.

References Foam::abort(), polyMeshGenCells::addressingData(), LongList< T, Offset >::append(), DynList< T, staticSize >::append(), boundaryLayerOptimisation::ATCORNER, boundaryLayerOptimisation::ATEDGE, boundaryLayerOptimisation::BOUNDARY, meshSurfaceEngine::boundaryFaces(), meshSurfaceEngine::bp(), boundaryLayerOptimisation::calculateHairVectorsAtTheBoundary(), labelledPoint::coordinates(), Foam::e, polyMeshGenAddressing::edgeAtProcs(), polyMeshGenAddressing::edgeNeiProcs(), polyMeshGenAddressing::edges(), Foam::endl(), Foam::help::exchangeMap(), face::faceEdge(), Foam::FatalError, FatalErrorIn, boundaryLayerOptimisation::FEATUREEDGE, forAll, forAllConstIter(), forAllRow, found, polyMeshGenAddressing::globalEdgeLabel(), meshSurfaceEngine::globalToLocalBndPointAddressing(), polyMeshGenAddressing::globalToLocalEdgeAddressing(), boundaryLayerOptimisation::hairEdges_, boundaryLayerOptimisation::hairEdgesAtBndPoint_, boundaryLayerOptimisation::hairEdgesNearHairEdge_, boundaryLayerOptimisation::hairEdgeType_, he, Foam::Info, Foam::mag(), boundaryLayerOptimisation::mesh_, boundaryLayerOptimisation::meshSurface(), UPstream::myProcNo(), boundaryLayerOptimisation::nSmoothNormals_, UPstream::parRun(), pFaces, polyMeshGenAddressing::pointEdges(), meshSurfaceEngine::pointFaces(), labelledPoint::pointLabel(), points, polyMeshGenPoints::points(), boundaryLayerOptimisation::reCalculateNormals_, Foam::help::scalarToText(), LongList< T, Offset >::size(), boundaryLayerOptimisation::writeHairEdges(), and Vector< scalar >::zero.

Referenced by boundaryLayerOptimisation::optimiseLayer().

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◆ optimiseHairNormalsInside()

void optimiseHairNormalsInside ( )
private

optimise hair normals inside the mesh

calculate direction of hair vector based on the surface normal

they point in the normal direction to the surface

calculate point normals with respect to all patches at a point

initialise boundary hair vectors. They influence internal hairs connected to them

initialise boundary hair vectors.

smooth the variation of normals to reduce twisting of faces

hair vectors at feature edges must not be modified

edges at inter-processor boundaries contribute at two sides are given weight 0.5

find the best fitting vector at the surface of the mesh

edges at inter-processor boundaries contribute at two sides are given weight 0.5

copy the existing hair vector

collect data at inter-processor boundaries

handle boundary points, only

calculate new normal vectors

transfer new hair vectors to the hairVecs list

move vertices to the new locations

Definition at line 825 of file boundaryLayerOptimisationNormals.C.

References Foam::abort(), polyMeshGenCells::addressingData(), LongList< T, Offset >::append(), boundaryLayerOptimisation::ATCORNER, boundaryLayerOptimisation::ATEDGE, boundaryLayerOptimisation::BOUNDARY, meshSurfaceEngine::boundaryPointEdges(), meshSurfaceEngine::bp(), boundaryLayerOptimisation::calculateNormalVectors(), labelledPoint::coordinates(), Foam::e, polyMeshGenAddressing::edgeAtProcs(), polyMeshGenAddressing::edgeNeiProcs(), meshSurfaceEngine::edges(), polyMeshGenAddressing::edges(), Foam::endl(), Foam::help::exchangeMap(), Foam::FatalError, FatalErrorIn, forAll, forAllConstIter(), forAllRow, found, polyMeshGenAddressing::globalEdgeLabel(), meshSurfaceEngine::globalToLocalBndPointAddressing(), polyMeshGenAddressing::globalToLocalEdgeAddressing(), boundaryLayerOptimisation::hairEdges_, boundaryLayerOptimisation::hairEdgesAtBndPoint_, boundaryLayerOptimisation::hairEdgesNearHairEdge_, boundaryLayerOptimisation::hairEdgeType_, he, Foam::Info, boundaryLayerOptimisation::INSIDE, Foam::mag(), boundaryLayerOptimisation::mesh_, boundaryLayerOptimisation::meshSurface(), UPstream::myProcNo(), n, boundaryLayerOptimisation::nSmoothNormals_, UPstream::parRun(), polyMeshGenAddressing::pointEdges(), labelledPoint::pointLabel(), points, polyMeshGenPoints::points(), boundaryLayerOptimisation::reCalculateNormals_, Foam::help::scalarToText(), LongList< T, Offset >::size(), boundaryLayerOptimisation::writeHairEdges(), and Vector< scalar >::zero.

Referenced by boundaryLayerOptimisation::optimiseLayer().

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◆ hairEdgesAtBndFace()

void hairEdgesAtBndFace ( const label  cellI,
const label  baseFaceI,
DynList< edge > &  hairEdges 
) const
private

calculate hair edges at a boundary faces

check cell topology

find the face attached to the edge after the current point

find the face attached to the edge before the current point

there exists a common edge which shall be used as a hair

Definition at line 49 of file boundaryLayerOptimisationThickness.C.

References DynList< T, staticSize >::append(), Foam::constant::universal::c, DynList< T, staticSize >::containsAtPosition(), Foam::e, f(), forAll, Foam::pos(), DynList< T, staticSize >::setSize(), List::size(), and DynList< T, staticSize >::size().

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◆ calculateThickness()

scalar calculateThickness ( const label  heI,
const label  heJ 
) const
private

calculate the thickness of the layer for edge heI respective to the height of edge heJ

references to hair edges

distance vector between the surface points of hair edges

calculate layer thickness

calculate layer height at the current point

calculate the height of the layer at the neighbour point

check if the current thickness is Ok for the local curvature

max allowed thickness and layer height due to curvature

max allowed neighbour hair thickness and layer height due to curvature

check the height variation

Definition at line 138 of file boundaryLayerOptimisationThickness.C.

References Foam::acos(), Foam::constant::atomic::alpha, beta(), he, Foam::mag(), Foam::max(), Foam::min(), Foam::help::nearestPointOnTheEdge(), points, Foam::sign(), and Foam::sin().

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◆ calculateThicknessOverCell()

scalar calculateThicknessOverCell ( const label  heI,
const label  cellI,
const label  baseFaceI 
) const
private

calculate thickness of the layer by checking intersections between the hair edge and the quad faces extruded from nighbouring faces

the base face must not contain the hair edge this is the case at exitting layers

Definition at line 236 of file boundaryLayerOptimisationThickness.C.

References Foam::constant::universal::c, f(), face::faceEdge(), forAll, he, Foam::help::lineFaceIntersection(), Foam::mag(), Foam::min(), points, and Foam::help::shareAnEdge().

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◆ optimiseThicknessVariation()

void optimiseThicknessVariation ( const direction  edgeType = (INSIDE|BOUNDARY))
private

optimise thickness variation

reduce thickness of the layer such that the variation of layer thickness It is an iterative process where the layer is thinned in the regions where the tangent is greater than the tolerance value or the curvature permits thicker boundary layers.

check if the hair edge intersects some other face in the cells attached to the hair edge

check if there exist any self-intersections

check thickness variation over all hair edges

make the hair edge shorter

collect data at inter-processor boundaries

reduce the information over all processors

move boundary vertices to the new positions

mark edges which may be changed

Definition at line 287 of file boundaryLayerOptimisationThickness.C.

References LongList< T, Offset >::append(), DynList< T, staticSize >::append(), meshSurfaceEngine::boundaryFaces(), meshSurfaceEngine::bp(), Foam::e, Foam::help::exchangeMap(), meshSurfaceEngine::faceOwners(), forAll, forAllConstIter(), forAllRow, found, meshSurfaceEngine::globalToLocalBndPointAddressing(), he, Foam::mag(), Foam::min(), UPstream::myProcNo(), n, UPstream::parRun(), pFaces, meshSurfaceEngine::pointFaces(), points, Foam::reduce(), s(), labelledScalar::scalarLabel(), edge::start(), List::transfer(), labelledScalar::value(), and face::which().

Referenced by boundaryLayerOptimisation::optimiseLayer().

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◆ optimiseLayersAtExittingFaces()

bool optimiseLayersAtExittingFaces ( )
private

optimise layers at exitting faces due to requests from the inside

find edge points inside the mesh with more than one hair edge attached to it

find the points with more than one hair edge which was modified in the previous procedure

Definition at line 481 of file boundaryLayerOptimisationFunctions.C.

References Foam::endl(), forAll, boundaryLayerOptimisation::hairEdges_, Foam::Info, boundaryLayerOptimisation::mesh_, polyMeshGenPoints::points(), Foam::reduce(), pointFieldPMG::size(), and boundaryLayerOptimisation::thinnedHairEdge_.

Referenced by boundaryLayerOptimisation::optimiseLayer().

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◆ writeVTK()

void writeVTK ( const fileName &  fName,
const pointField &  origin,
const vectorField &  vecs 
)
staticprivate

write vectors into a VTK file. Helper for debugging

write the header

write points

write lines

Definition at line 58 of file boundaryLayerOptimisationFunctions.C.

References Foam::abort(), Foam::FatalError, FatalErrorIn, forAll, Foam::nl, p, Vector< Cmpt >::x(), Vector< Cmpt >::y(), and Vector< Cmpt >::z().

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◆ writeHairEdges() [1/2]

void writeHairEdges ( const fileName &  fName,
const direction  eType,
const vectorField &  vecs 
) const
private

write vector correcposing to hair edges. Helper for debugging

count the number of hair edges matching this criteria

copy edge vector

write data to file

Definition at line 104 of file boundaryLayerOptimisationFunctions.C.

References Foam::abort(), Foam::FatalError, FatalErrorIn, forAll, he, points, and Foam::writeVTK().

Referenced by boundaryLayerOptimisation::optimiseHairNormalsAtTheBoundary(), and boundaryLayerOptimisation::optimiseHairNormalsInside().

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◆ writeHairEdges() [2/2]

void writeHairEdges ( const fileName &  fName,
const direction  eType 
) const
private

write selected hair edges into a file

count the number of hair edges matching this criteria

copy edge vector

write data to file

Definition at line 150 of file boundaryLayerOptimisationFunctions.C.

References forAll, he, points, and Foam::writeVTK().

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◆ operator=()

void operator= ( const boundaryLayerOptimisation &  )
private

Disallow default bitwise assignment.

◆ setMaxNumIterations()

void setMaxNumIterations ( const label  maxNumIterations)

set the maximum number of iterations

Definition at line 101 of file boundaryLayerOptimisation.C.

Referenced by boundaryLayerOptimisation::readSettings().

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◆ setNumNormalsSmoothingIterations()

void setNumNormalsSmoothingIterations ( const label  nSmoothNormal)

set the number of normal smoothing iterations (default is 5)

Definition at line 109 of file boundaryLayerOptimisation.C.

Referenced by boundaryLayerOptimisation::readSettings().

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◆ recalculateNormals()

void recalculateNormals ( const bool  shallRecalculate)

shall normals be re-calculated (default true)

Definition at line 116 of file boundaryLayerOptimisation.C.

References boundaryLayerOptimisation::reCalculateNormals_.

Referenced by boundaryLayerOptimisation::readSettings().

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◆ setRelativeThicknessTolerance()

void setRelativeThicknessTolerance ( const scalar  relThicknessTol)

set the relative thickness tolerance (default 0.15)

Definition at line 122 of file boundaryLayerOptimisation.C.

Referenced by boundaryLayerOptimisation::readSettings().

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◆ setFeatureSizeFactor()

void setFeatureSizeFactor ( const scalar  featureSizeFactor)

set the feature size factor (default 0.3)

Definition at line 130 of file boundaryLayerOptimisation.C.

Referenced by boundaryLayerOptimisation::readSettings().

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◆ hairEdges()

const edgeLongList & hairEdges ( ) const

return hair edges

Definition at line 137 of file boundaryLayerOptimisation.C.

References boundaryLayerOptimisation::hairEdges_.

◆ hairEdgesAtBndPoint()

const VRWGraph & hairEdgesAtBndPoint ( ) const

hair edges attached to a boundary point

Definition at line 142 of file boundaryLayerOptimisation.C.

References boundaryLayerOptimisation::hairEdgesAtBndPoint_.

◆ isBaseFace()

const boolList & isBaseFace ( ) const

boundary faces which serve as base faces of a boundary layer are set to true

Definition at line 147 of file boundaryLayerOptimisation.C.

References boundaryLayerOptimisation::isBndLayerBase_.

Referenced by meshOptimizer::optimizeBoundaryLayer().

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◆ isExitFace()

const boolList & isExitFace ( ) const

boundary faces where the layers exit at the boundary

Definition at line 152 of file boundaryLayerOptimisation.C.

References boundaryLayerOptimisation::isExitFace_.

◆ optimiseLayer()

void optimiseLayer ( )

performs boundary layer optimisation

create surface smoother

lock exitting faces and feature edges

calculate normals at the boundary

smoothing thickness variation of boundary hairs

optimise normals inside the mesh

optimise thickness variation inside the mesh

Definition at line 533 of file boundaryLayerOptimisationFunctions.C.

References LongList< T, Offset >::append(), boundaryLayerOptimisation::BOUNDARY, Foam::endl(), forAll, Foam::Info, boundaryLayerOptimisation::INSIDE, boundaryLayerOptimisation::isExitFace_, meshSurfaceOptimizer::lockBoundaryFaces(), meshSurfaceOptimizer::lockFeatureEdges(), boundaryLayerOptimisation::maxNumIterations_, boundaryLayerOptimisation::meshSurface(), boundaryLayerOptimisation::optimiseHairNormalsAtTheBoundary(), boundaryLayerOptimisation::optimiseHairNormalsInside(), boundaryLayerOptimisation::optimiseLayersAtExittingFaces(), boundaryLayerOptimisation::optimiseThicknessVariation(), meshSurfaceOptimizer::optimizeSurface(), Foam::reduce(), boundaryLayerOptimisation::thinnedHairEdge_, and meshSurfaceEngineModifier::updateGeometry().

Referenced by meshOptimizer::optimizeBoundaryLayer().

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◆ readSettings()

void readSettings ( const dictionary &  meshDict,
boundaryLayerOptimisation &  blOptimisation 
)
static

read the settings from dictionary

Definition at line 158 of file boundaryLayerOptimisation.C.

References Foam::exit(), Foam::FatalError, FatalErrorIn, dictionary::found(), dictionary::lookup(), Foam::readBool(), Foam::readLabel(), Foam::readScalar(), boundaryLayerOptimisation::recalculateNormals(), boundaryLayerOptimisation::setFeatureSizeFactor(), boundaryLayerOptimisation::setMaxNumIterations(), boundaryLayerOptimisation::setNumNormalsSmoothingIterations(), boundaryLayerOptimisation::setRelativeThicknessTolerance(), and dictionary::subDict().

Referenced by meshOptimizer::optimizeBoundaryLayer().

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Field Documentation

◆ mesh_

polyMeshGen& mesh_
private

reference to polyMeshGen

Definition at line 66 of file boundaryLayerOptimisation.H.

Referenced by boundaryLayerOptimisation::calculateHairEdges(), boundaryLayerOptimisation::meshSurface(), boundaryLayerOptimisation::optimiseHairNormalsAtTheBoundary(), boundaryLayerOptimisation::optimiseHairNormalsInside(), and boundaryLayerOptimisation::optimiseLayersAtExittingFaces().

◆ meshSurfacePtr_

const meshSurfaceEngine* meshSurfacePtr_
mutableprivate

const pointer to meshSurfaceEngine

Definition at line 69 of file boundaryLayerOptimisation.H.

Referenced by boundaryLayerOptimisation::meshSurface(), and boundaryLayerOptimisation::~boundaryLayerOptimisation().

◆ deleteMeshSurface_

const bool deleteMeshSurface_
private

Definition at line 70 of file boundaryLayerOptimisation.H.

Referenced by boundaryLayerOptimisation::~boundaryLayerOptimisation().

◆ partitionerPtr_

const meshSurfacePartitioner* partitionerPtr_
mutableprivate

mesh surface partitioner

Definition at line 73 of file boundaryLayerOptimisation.H.

Referenced by boundaryLayerOptimisation::surfacePartitioner(), and boundaryLayerOptimisation::~boundaryLayerOptimisation().

◆ hairEdges_

edgeLongList hairEdges_
private

boundary layer hairs

Definition at line 76 of file boundaryLayerOptimisation.H.

Referenced by boundaryLayerOptimisation::calculateHairEdges(), boundaryLayerOptimisation::hairEdges(), boundaryLayerOptimisation::optimiseHairNormalsAtTheBoundary(), boundaryLayerOptimisation::optimiseHairNormalsInside(), and boundaryLayerOptimisation::optimiseLayersAtExittingFaces().

◆ hairEdgesAtBndPoint_

VRWGraph hairEdgesAtBndPoint_
private

hair edges attached to a boundary point

Definition at line 79 of file boundaryLayerOptimisation.H.

Referenced by boundaryLayerOptimisation::calculateHairEdges(), boundaryLayerOptimisation::hairEdgesAtBndPoint(), boundaryLayerOptimisation::optimiseHairNormalsAtTheBoundary(), and boundaryLayerOptimisation::optimiseHairNormalsInside().

◆ hairEdgesNearHairEdge_

VRWGraph hairEdgesNearHairEdge_
private

hair edge to other hair edges

Definition at line 82 of file boundaryLayerOptimisation.H.

Referenced by boundaryLayerOptimisation::calculateHairEdges(), boundaryLayerOptimisation::optimiseHairNormalsAtTheBoundary(), and boundaryLayerOptimisation::optimiseHairNormalsInside().

◆ isBndLayerBase_

boolList isBndLayerBase_
private

is boundary face a base for a prism in the bnd layer

Definition at line 85 of file boundaryLayerOptimisation.H.

Referenced by boundaryLayerOptimisation::calculateHairEdges(), and boundaryLayerOptimisation::isBaseFace().

◆ isExitFace_

boolList isExitFace_
private

is boundary face part of a layer where a layer exits

Definition at line 88 of file boundaryLayerOptimisation.H.

Referenced by boundaryLayerOptimisation::calculateHairEdges(), boundaryLayerOptimisation::isExitFace(), and boundaryLayerOptimisation::optimiseLayer().

◆ hairEdgeType_

List<direction> hairEdgeType_
private

classification of hair edges

Definition at line 91 of file boundaryLayerOptimisation.H.

Referenced by boundaryLayerOptimisation::calculateHairEdges(), boundaryLayerOptimisation::optimiseHairNormalsAtTheBoundary(), and boundaryLayerOptimisation::optimiseHairNormalsInside().

◆ thinnedHairEdge_

boolList thinnedHairEdge_
private

stores information where boundary hairs are made thinner

Definition at line 94 of file boundaryLayerOptimisation.H.

Referenced by boundaryLayerOptimisation::calculateHairEdges(), boundaryLayerOptimisation::optimiseLayer(), and boundaryLayerOptimisation::optimiseLayersAtExittingFaces().

◆ maxNumIterations_

label maxNumIterations_
private

maximum number of iterations

Definition at line 97 of file boundaryLayerOptimisation.H.

Referenced by boundaryLayerOptimisation::optimiseLayer().

◆ nSmoothNormals_

label nSmoothNormals_
private

number of iterations for smoothing of hairs

Definition at line 100 of file boundaryLayerOptimisation.H.

Referenced by boundaryLayerOptimisation::optimiseHairNormalsAtTheBoundary(), and boundaryLayerOptimisation::optimiseHairNormalsInside().

◆ relThicknessTol_

scalar relThicknessTol_
private

relative tolerance for thickness variation

Definition at line 103 of file boundaryLayerOptimisation.H.

◆ featureSizeFactor_

scalar featureSizeFactor_
private

feature size factor used for curvature-based optimisation

Definition at line 106 of file boundaryLayerOptimisation.H.

◆ reCalculateNormals_

bool reCalculateNormals_
private

activate calculation of normals

Definition at line 109 of file boundaryLayerOptimisation.H.

Referenced by boundaryLayerOptimisation::optimiseHairNormalsAtTheBoundary(), boundaryLayerOptimisation::optimiseHairNormalsInside(), and boundaryLayerOptimisation::recalculateNormals().

The documentation for this class was generated from the following files:

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