ENH: snappyHexMesh: directional smoothing support

This commit is contained in:
mattijs
2018-04-11 10:24:18 +01:00
parent e80739b80a
commit cb4ce1ffec
9 changed files with 1211 additions and 9 deletions

View File

@ -299,6 +299,12 @@ castellatedMeshControls
// // with e.g. dynamic refinement/unrefinement.
// // - cellLevel will include any directional refinement
// // (i.e. it will be the maximum of all three directions)
//
// // Optional directional expansion-ratio smoothing (after all
// // refinement). This will try to smooth out edge/cell size jumps
// // Specify smoothing direction and number of iterations
// nSmoothExpansion 100;
// smoothDirection (1 0 0);
//}
}

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@ -585,6 +585,8 @@ Foam::shellSurfaces::shellSurfaces
distances_.setSize(shellI);
levels_.setSize(shellI);
dirLevels_.setSize(shellI);
smoothDirection_.setSize(shellI);
nSmoothExpansion_.setSize(shellI);
extendedGapLevel_.setSize(shellI);
extendedGapMode_.setSize(shellI);
@ -661,6 +663,13 @@ Foam::shellSurfaces::shellSurfaces
}
}
// Directional smoothing
// ~~~~~~~~~~~~~~~~~~~~~
smoothDirection_[shellI] =
dict.lookupOrDefault("smoothDirection", vector::zero);
nSmoothExpansion_[shellI] =
dict.lookupOrDefault("nSmoothExpansion", 0);
// Gap specification
@ -803,6 +812,18 @@ Foam::labelPairList Foam::shellSurfaces::directionalSelectLevel() const
}
const Foam::labelList& Foam::shellSurfaces::nSmoothExpansion() const
{
return nSmoothExpansion_;
}
const Foam::vectorField& Foam::shellSurfaces::smoothDirection() const
{
return smoothDirection_;
}
void Foam::shellSurfaces::findHigherLevel
(
const pointField& pt,

View File

@ -86,8 +86,17 @@ private:
//- Per shell per distance the refinement level
labelListList levels_;
//- Per shell any additional directional refinement
List<Tuple2<labelPair,labelVector>> dirLevels_;
// Directional
//- Per shell any additional directional refinement
List<Tuple2<labelPair,labelVector>> dirLevels_;
//- Per shell the smoothing direction
vectorField smoothDirection_;
//- Per shell the directional smoothing iterations
labelList nSmoothExpansion_;
// Gap level refinement
@ -231,6 +240,12 @@ public:
const direction dir,
labelList& shell
) const;
//- Per shell the smoothing direction
const vectorField& smoothDirection() const;
//- Per shell the directional smoothing iterations
const labelList& nSmoothExpansion() const;
};

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@ -0,0 +1,258 @@
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2018 OpenCFD Ltd.
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::PointIntegrateData
Description
Integrate along selected edges using PointEdgeWave.
SourceFiles
PointIntegrateDataI.H
\*---------------------------------------------------------------------------*/
#ifndef PointIntegrateData_H
#define PointIntegrateData_H
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
// Forward declaration of classes
class Istream;
class Ostream;
template<class DataType>
class PointIntegrateData;
// Forward declaration of friend functions and operators
template<class DataType>
Ostream& operator<<(Ostream&, const PointIntegrateData<DataType>&);
template<class DataType>
Istream& operator>>(Istream&, PointIntegrateData<DataType>&);
/*---------------------------------------------------------------------------*\
Class PointIntegrateData declaration
\*---------------------------------------------------------------------------*/
template<class DataType>
class PointIntegrateData
{
private:
// Private data
//- Valid flag
bool valid_;
//- Integrated data
DataType data_;
public:
//- Class used to pass extra data
class trackingData
{
public:
UList<DataType>& edgeData_;
trackingData(UList<DataType>& edgeData)
:
edgeData_(edgeData)
{}
};
// Constructors
//- Construct null
inline PointIntegrateData();
//- Construct from data
inline PointIntegrateData(const DataType& data);
// Member Functions
// Access
//- Const access the data
inline const DataType& data() const
{
return data_;
};
// Needed by PointEdgeWave
//- Check whether original (invalid) value.
template<class TrackingData>
inline bool valid(TrackingData& td) const;
//- Check for identical geometrical data. Used for cyclics checking.
template<class TrackingData>
inline bool sameGeometry
(
const PointIntegrateData<DataType>&,
const scalar tol,
TrackingData& td
) const;
//- Convert origin to relative vector to leaving point
// (= point coordinate)
template<class TrackingData>
inline void leaveDomain
(
const polyPatch& patch,
const label patchPointi,
const point& pos,
TrackingData& td
);
//- Convert relative origin to absolute by adding entering point
template<class TrackingData>
inline void enterDomain
(
const polyPatch& patch,
const label patchPointi,
const point& pos,
TrackingData& td
);
//- Apply rotation matrix to the data
template<class TrackingData>
inline void transform
(
const tensor& rotTensor,
TrackingData& td
);
//- Influence of edge on point
template<class TrackingData>
inline bool updatePoint
(
const polyMesh& mesh,
const label pointI,
const label edgeI,
const PointIntegrateData<DataType>& edgeInfo,
const scalar tol,
TrackingData& td
);
//- Influence of different value on same point.
// Merge new and old info.
template<class TrackingData>
inline bool updatePoint
(
const polyMesh& mesh,
const label pointI,
const PointIntegrateData<DataType>& newPointInfo,
const scalar tol,
TrackingData& td
);
//- Influence of different value on same point.
// No information about current position whatsoever.
template<class TrackingData>
inline bool updatePoint
(
const PointIntegrateData<DataType>& newPointInfo,
const scalar tol,
TrackingData& td
);
//- Influence of point on edge.
template<class TrackingData>
inline bool updateEdge
(
const polyMesh& mesh,
const label edgeI,
const label pointI,
const PointIntegrateData<DataType>& pointInfo,
const scalar tol,
TrackingData& td
);
//- Same (like operator==)
template<class TrackingData>
inline bool equal
(
const PointIntegrateData<DataType>&,
TrackingData& td
) const;
// Member Operators
// Needed for List IO
inline bool operator==(const PointIntegrateData<DataType>&) const;
inline bool operator!=(const PointIntegrateData<DataType>&) const;
// IOstream Operators
friend Ostream& operator<< <DataType>
(
Ostream&,
const PointIntegrateData<DataType>&
);
friend Istream& operator>> <DataType>
(
Istream&,
PointIntegrateData<DataType>&
);
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
//- Data associated with PointIntegrateData types is contiguous
template<>
inline bool contiguous<PointIntegrateData<scalar>>()
{
return true;
}
template<>
inline bool contiguous<PointIntegrateData<vector>>()
{
return true;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#include "PointIntegrateDataI.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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@ -0,0 +1,304 @@
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2018 OpenCFD Ltd.
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "polyMesh.H"
#include "transform.H"
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
template<class DataType>
inline Foam::PointIntegrateData<DataType>::PointIntegrateData()
:
valid_(false)
{}
template<class DataType>
inline Foam::PointIntegrateData<DataType>::PointIntegrateData
(
const DataType& data
)
:
valid_(true),
data_(data)
{}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
template<class DataType>
template<class TrackingData>
inline bool Foam::PointIntegrateData<DataType>::valid(TrackingData& td) const
{
return valid_;
}
template<class DataType>
template<class TrackingData>
inline bool Foam::PointIntegrateData<DataType>::sameGeometry
(
const PointIntegrateData<DataType>&,
const scalar tol,
TrackingData& td
) const
{
return true;
}
template<class DataType>
template<class TrackingData>
inline void Foam::PointIntegrateData<DataType>::leaveDomain
(
const polyPatch& patch,
const label patchPointi,
const point& pos,
TrackingData& td
)
{}
template<class DataType>
template<class TrackingData>
inline void Foam::PointIntegrateData<DataType>::enterDomain
(
const polyPatch& patch,
const label patchPointi,
const point& pos,
TrackingData& td
)
{}
template<class DataType>
template<class TrackingData>
inline void Foam::PointIntegrateData<DataType>::transform
(
const tensor& rotTensor,
TrackingData& td
)
{
this->data_ = Foam::transform(rotTensor, this->data_);
}
template<class DataType>
template<class TrackingData>
inline bool Foam::PointIntegrateData<DataType>::updatePoint
(
const polyMesh& mesh,
const label pointI,
const label edgeI,
const PointIntegrateData<DataType>& edgeInfo,
const scalar tol,
TrackingData& td
)
{
// Update point from an edge
if (!valid_)
{
if (!edgeInfo.valid_)
{
FatalErrorInFunction<< "edgeInfo:" << edgeInfo << exit(FatalError);
}
this->operator=(edgeInfo);
return true;
}
else
{
return false;
}
}
template<class DataType>
template<class TrackingData>
inline bool Foam::PointIntegrateData<DataType>::updatePoint
(
const polyMesh& mesh,
const label pointI,
const PointIntegrateData<DataType>& newPointInfo,
const scalar tol,
TrackingData& td
)
{
// Update point from coupled point
if (!valid_)
{
if (!newPointInfo.valid_)
{
FatalErrorInFunction<< "newPointInfo:" << newPointInfo
<< exit(FatalError);
}
this->operator=(newPointInfo);
return true;
}
else
{
return false;
}
}
template<class DataType>
template<class TrackingData>
inline bool Foam::PointIntegrateData<DataType>::updatePoint
(
const PointIntegrateData<DataType>& newPointInfo,
const scalar tol,
TrackingData& td
)
{
if (!valid_)
{
if (!newPointInfo.valid_)
{
FatalErrorInFunction<< "newPointInfo:" << newPointInfo
<< exit(FatalError);
}
this->operator=(newPointInfo);
return true;
}
else
{
return false;
}
}
template<class DataType>
template<class TrackingData>
inline bool Foam::PointIntegrateData<DataType>::updateEdge
(
const polyMesh& mesh,
const label edgeI,
const label pointI,
const PointIntegrateData<DataType>& pointInfo,
const scalar tol,
TrackingData& td
)
{
if (!valid_)
{
if (!pointInfo.valid(td))
{
FatalErrorInFunction<< "problem: invalid point:"
<< mesh.points()[pointI]
<< " data:" << pointInfo
<< exit(FatalError);
}
this->data_ = pointInfo.data_ + td.edgeData_[edgeI];
this->valid_ = true;
return true;
}
else
{
return false;
}
}
//- Same (like operator==)
template<class DataType>
template<class TrackingData>
inline bool Foam::PointIntegrateData<DataType>::equal
(
const PointIntegrateData<DataType>& pi,
TrackingData& td
) const
{
if (!valid_)
{
return false;
}
else if (!pi.valid_)
{
FatalErrorInFunction << "pi:" << pi
<< exit(FatalError);
return false;
}
else
{
return this->data_ == pi.data_;
}
}
// * * * * * * * * * * * * * * * Member Operators * * * * * * * * * * * * * //
template<class DataType>
inline bool Foam::PointIntegrateData<DataType>::operator==
(
const Foam::PointIntegrateData<DataType>& rhs
)
const
{
return this->data_ == rhs.data_;
}
template<class DataType>
inline bool Foam::PointIntegrateData<DataType>::operator!=
(
const Foam::PointIntegrateData<DataType>& rhs
)
const
{
return !(*this == rhs);
}
// * * * * * * * * * * * * * * * Friend Operators * * * * * * * * * * * * * //
template<class DataType>
inline Foam::Ostream& Foam::operator<<
(
Ostream& os,
const PointIntegrateData<DataType>& pd
)
{
if (os.format() == IOstream::ASCII)
{
return os << pd.valid_ << token::SPACE << pd.data();
}
else
{
return os << pd.valid_ << pd.data();
}
}
template<class DataType>
inline Foam::Istream& Foam::operator>>
(
Istream& is,
PointIntegrateData<DataType>& pd
)
{
return is >> pd.valid_ >> pd.data_;
}
// ************************************************************************* //

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@ -668,7 +668,7 @@ void Foam::snappyLayerDriver::handleFeatureAngle
(
const indirectPrimitivePatch& pp,
const labelList& meshEdges,
const scalar minCos,
const scalar minAngle,
pointField& patchDisp,
labelList& patchNLayers,
List<extrudeMode>& extrudeStatus
@ -676,7 +676,10 @@ void Foam::snappyLayerDriver::handleFeatureAngle
{
const fvMesh& mesh = meshRefiner_.mesh();
Info<< nl << "Handling feature edges ..." << endl;
const scalar minCos = Foam::cos(degToRad(minAngle));
Info<< nl << "Handling feature edges (angle < " << minAngle
<< ") ..." << endl;
if (minCos < 1-SMALL)
{
@ -3647,7 +3650,7 @@ void Foam::snappyLayerDriver::addLayers
(
pp,
meshEdges,
degToRad(layerParams.featureAngle()),
layerParams.featureAngle(),
patchDisp,
patchNLayers,

View File

@ -218,7 +218,7 @@ private:
(
const indirectPrimitivePatch& pp,
const labelList& meshEdges,
const scalar minCos,
const scalar minAngle,
pointField& patchDisp,
labelList& patchNLayers,
List<extrudeMode>& extrudeStatus

View File

@ -3,7 +3,7 @@
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2015 OpenFOAM Foundation
\\/ M anipulation | Copyright (C) 2015-2017 OpenCFD Ltd.
\\/ M anipulation | Copyright (C) 2015-2018 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
@ -41,6 +41,9 @@ License
#include "labelVector.H"
#include "profiling.H"
#include "searchableSurfaces.H"
#include "PointIntegrateData.H"
#include "PointEdgeWave.H"
#include "OBJstream.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
@ -1627,7 +1630,6 @@ Foam::label Foam::snappyRefineDriver::directionalShellRefine
for (direction dir = 0; dir < vector::nComponents; dir++)
{
// Select the cells that need to be refined in certain direction:
//
// - cell inside/outside shell
// - original cellLevel (using mapping) mentioned in levelIncrement
// - dirCellLevel not yet up to cellLevel+levelIncrement
@ -1786,6 +1788,576 @@ Foam::label Foam::snappyRefineDriver::directionalShellRefine
}
void Foam::snappyRefineDriver::getVirtualEdgeLength
(
const vector& userDirection,
const labelList& pointLabels,
const PackedBoolList& isXFace,
scalarField& maxUserSize
) const
{
const fvMesh& mesh = meshRefiner_.mesh();
const labelList& own = mesh.faceOwner();
const labelList& nei = mesh.faceNeighbour();
const vectorField& fA = mesh.faceAreas();
const pointField& faceCentres = mesh.faceCentres();
const pointField& cellCentres = mesh.cellCentres();
scalarField sumWeights(mesh.nCells(), 0.0);
scalarField sumArea(mesh.nCells(), 0.0);
forAll(own, facei)
{
const scalar fc = (faceCentres[facei]&userDirection);
const scalar cc = (cellCentres[own[facei]]&userDirection);
// Calculate 'pyramid volume'
scalar pyr3Vol = (fA[facei]&userDirection)*(fc-cc);
sumWeights[own[facei]] += pyr3Vol;
sumArea[own[facei]] += mag(fA[facei]&userDirection);
}
forAll(nei, facei)
{
const scalar fc = (faceCentres[facei]&userDirection);
const scalar cc = (cellCentres[nei[facei]]&userDirection);
// Calculate 'pyramid volume'
scalar pyr3Vol = (fA[facei]&userDirection)*(cc-fc);
sumWeights[nei[facei]] += pyr3Vol;
sumArea[nei[facei]] += mag(fA[facei]&userDirection);
}
const scalarField cellSize(2*sumWeights/sumArea);
maxUserSize.setSize(mesh.nPoints());
maxUserSize = -GREAT;
forAll(pointLabels, i)
{
label pointi = pointLabels[i];
const labelList& pFaces = mesh.pointFaces()[pointi];
scalar& maxSz = maxUserSize[pointi];
forAll(pFaces, pFacei)
{
label facei = pFaces[pFacei];
if (isXFace[facei])
{
const point& fc = faceCentres[facei];
if (((cellCentres[own[facei]]-fc)&userDirection) > 0.0)
{
maxSz = max(maxSz, cellSize[own[facei]]);
}
if (mesh.isInternalFace(facei))
{
if (((cellCentres[nei[facei]]-fc)&userDirection) > 0.0)
{
maxSz = max(maxSz, cellSize[nei[facei]]);
}
}
}
}
}
syncTools::syncPointList
(
mesh,
maxUserSize,
maxEqOp<scalar>(),
-GREAT
);
}
Foam::label Foam::snappyRefineDriver::directionalSmooth
(
const refinementParameters& refineParams
)
{
addProfiling(split, "snappyHexMesh::refine::smooth");
Info<< nl
<< "Directional expansion ratio smoothing" << nl
<< "-------------------------------------" << nl
<< endl;
fvMesh& mesh = meshRefiner_.mesh();
const pointField& points = mesh.points();
const searchableSurfaces& geometry = meshRefiner_.surfaces().geometry();
const shellSurfaces& shells = meshRefiner_.shells();
label iter = 0;
forAll(shells.nSmoothExpansion(), shellI)
{
if (shells.nSmoothExpansion()[shellI] > 0)
{
label surfi = shells.shells()[shellI];
const vector& userDirection = shells.smoothDirection()[shellI];
// Extract inside points
labelList pointLabels;
PackedBoolList isInsidePoint(mesh.nPoints());
{
// Get inside points
List<volumeType> volType;
geometry[surfi].getVolumeType(points, volType);
forAll(volType, pointi)
{
if (volType[pointi] == volumeType::INSIDE)
{
isInsidePoint.set(pointi);
}
}
pointLabels = isInsidePoint.used();
}
const edgeList& edges = mesh.edges();
const labelListList& pointEdges = mesh.pointEdges();
// Mark all directed edges
PackedBoolList isXEdge(edges.size());
{
forAll(edges, edgei)
{
const edge& e = edges[edgei];
vector eVec(e.vec(points));
eVec /= mag(eVec);
if (mag(eVec&userDirection) > 0.9)
{
isXEdge.set(edgei);
}
}
}
// Mark all directed faces (with all points inside the region)
PackedBoolList isXFace(mesh.nFaces());
{
const vectorField& faceAreas = mesh.faceAreas();
const faceList& faces = mesh.faces();
forAll(faces, facei)
{
const face& f = faces[facei];
bool allInRegion = true;
for (label pointi : f)
{
if (!isInsidePoint[pointi])
{
allInRegion = false;
break;
}
}
if (allInRegion)
{
vector n(faceAreas[facei]);
n /= mag(n);
if (mag(n&userDirection) > 0.9)
{
isXFace[facei] = true;
}
}
}
}
// Get left and right local edge
labelList leftEdge(points.size(), -1);
labelList rightEdge(points.size(), -1);
forAll(pointLabels, i)
{
label pointi = pointLabels[i];
const labelList& pEdges = pointEdges[pointi];
forAll(pEdges, pEdgei)
{
label edgei = pEdges[pEdgei];
const edge& e = edges[edgei];
label otherPointi = e.otherVertex(pointi);
vector eVec(points[otherPointi]-points[pointi]);
eVec /= mag(eVec);
scalar cosAngle = (eVec&userDirection);
if (cosAngle < -0.9)
{
leftEdge[pointi] = edgei;
}
else if (cosAngle > 0.9)
{
rightEdge[pointi] = edgei;
}
}
}
pointField newPoints(points);
Info<< "Smoothing " << geometry[surfi].name() << ':' << nl
<< " Direction : " << userDirection << nl
<< " Number of points : "
<< returnReduce(pointLabels.size(), sumOp<label>())
<< " (out of " << mesh.globalData().nTotalPoints()
<< ")" << nl
<< " Number of directed edges : "
<< returnReduce(isXEdge.count(), sumOp<label>())
<< " (out of " << returnReduce(edges.size(), sumOp<label>())
<< ")" << nl
<< " Number of directed faces : "
<< returnReduce(isXFace.count(), sumOp<label>())
<< " (out of " << mesh.globalData().nTotalFaces()
<< ")" << nl
<< " Iterations : "
<< shells.nSmoothExpansion()[shellI] << nl
<< endl;
for (iter = 0; iter < shells.nSmoothExpansion()[shellI]; iter++)
{
if (debug)
{
const_cast<Time&>(mesh.time())++;
}
// Determine size of connected edge
scalarField leftEdgeMag(points.size(), -GREAT);
scalarField rightEdgeMag(points.size(), -GREAT);
{
forAll(edges, edgei)
{
if (isXEdge[edgei])
{
const edge& e = edges[edgei];
forAll(e, fp)
{
label pointi = e[fp];
if (leftEdge[pointi] == edgei)
{
leftEdgeMag[pointi] = e.mag(points);
}
else if (rightEdge[pointi] == edgei)
{
rightEdgeMag[pointi] = e.mag(points);
}
}
}
}
syncTools::syncPointList
(
mesh,
leftEdgeMag,
maxEqOp<scalar>(),
-GREAT
);
syncTools::syncPointList
(
mesh,
rightEdgeMag,
maxEqOp<scalar>(),
-GREAT
);
}
// Get local characteristic size (in provided direction) on all
// points
scalarField maxUserSize;
getVirtualEdgeLength
(
userDirection,
pointLabels,
isXFace,
maxUserSize
);
// Determine average edge
scalarField avgEdgeMag(edges.size(), 0.0);
forAll(edges, edgei)
{
if (isXEdge[edgei])
{
const edge& e = edges[edgei];
label nSum = 0;
// Add both contributions from e[0]. One will be the
// edge itself.
if (leftEdgeMag[e[0]] > 0.0)
{
avgEdgeMag[edgei] += leftEdgeMag[e[0]];
nSum++;
}
if (rightEdgeMag[e[0]] > 0.0)
{
avgEdgeMag[edgei] += rightEdgeMag[e[0]];
nSum++;
}
else if (maxUserSize[e[0]] > 0.0)
{
// Dangling point. Characteristic length from cell
// size
avgEdgeMag[edgei] += maxUserSize[e[0]];
nSum++;
}
// Make sure we don't add the edge itself from e[1]
if (leftEdge[e[1]] == edgei)
{
// leftEdge is edgei. Use right contribtion
if (rightEdgeMag[e[1]] > 0.0)
{
avgEdgeMag[edgei] += rightEdgeMag[e[1]];
nSum++;
}
else if (maxUserSize[e[1]] > 0.0)
{
avgEdgeMag[edgei] += maxUserSize[e[1]];
nSum++;
}
}
else if (leftEdgeMag[e[1]] > 0.0)
{
avgEdgeMag[edgei] += leftEdgeMag[e[1]];
nSum++;
}
if (nSum > 0)
{
avgEdgeMag[edgei] /= nSum;
}
}
}
// Edge integration
// ~~~~~~~~~~~~~~~~
// Using edge mag
List<PointIntegrateData<scalar>> pointData(mesh.nPoints());
List<PointIntegrateData<scalar>> edgeData(mesh.nEdges());
// Using average edge mag
List<PointIntegrateData<scalar>> avgPointData(mesh.nPoints());
List<PointIntegrateData<scalar>> avgEdgeData(mesh.nEdges());
{
DynamicList<label> seedPoints;
DynamicList<PointIntegrateData<scalar>> seedData;
DynamicList<PointIntegrateData<scalar>> avgSeedData;
{
forAll(pointLabels, i)
{
label pointi = pointLabels[i];
label leftEdgei = leftEdge[pointi];
if (leftEdgeMag[pointi] <= 0.0)
{
// Boundary to the left.
seedPoints.append(pointi);
seedData.append(0.0);
avgSeedData.append(0.0);
}
else if (leftEdgei != -1)
{
const edge& leftE = edges[leftEdgei];
label otherPointi = leftE.otherVertex(pointi);
if (!isInsidePoint[otherPointi])
{
seedPoints.append(pointi);
seedData.append(leftEdgeMag[pointi]);
avgSeedData.append(avgEdgeMag[leftEdgei]);
}
}
}
}
// Prevent walking on all non-isXEdge edges by setting valid
// flag.
const PointIntegrateData<scalar> dummyData(-123);
forAll(edges, edgei)
{
const edge& e = edges[edgei];
if (!isXEdge[edgei])
{
edgeData[edgei] = dummyData;
avgEdgeData[edgei] = dummyData;
}
else if (!isInsidePoint[e[0]] || !isInsidePoint[e[1]])
{
edgeData[edgei] = dummyData;
avgEdgeData[edgei] = dummyData;
}
}
forAll(isInsidePoint, pointi)
{
if (!isInsidePoint[pointi])
{
pointData[pointi] = dummyData;
avgPointData[pointi] = dummyData;
}
}
// Integrate edgeMag
{
scalarField edgeMag(edges.size());
forAll(edges, edgei)
{
edgeMag[edgei] = edges[edgei].mag(points);
}
PointIntegrateData<scalar>::trackingData td(edgeMag);
// Do all calculations
PointEdgeWave
<
PointIntegrateData<scalar>,
PointIntegrateData<scalar>::trackingData
> calc
(
mesh,
seedPoints,
seedData,
pointData,
edgeData,
returnReduce(edges.size(), sumOp<label>()),
td
);
}
// Integrate avgEdgeMag
{
PointIntegrateData<scalar>::trackingData td(avgEdgeMag);
// Do all calculations
PointEdgeWave
<
PointIntegrateData<scalar>,
PointIntegrateData<scalar>::trackingData
> calc
(
mesh,
seedPoints,
avgSeedData,
avgPointData,
avgEdgeData,
returnReduce(edges.size(), sumOp<label>()),
td
);
}
}
// Update position
forAll(pointLabels, zonePointi)
{
label meshPointi = pointLabels[zonePointi];
if (pointData[meshPointi].data() >= 0.0)
{
newPoints[meshPointi] +=
userDirection
* (
avgPointData[meshPointi].data()
- pointData[meshPointi].data()
);
}
}
// Smooth new position with average of non-moving points
{
pointField unsmoothedPoints(newPoints);
scalarField sumOther(mesh.nPoints(), 0.0);
labelList nSumOther(mesh.nPoints(), 0);
forAll(edges, edgei)
{
const edge& e = edges[edgei];
sumOther[e[0]] +=
(unsmoothedPoints[e[1]]&userDirection);
nSumOther[e[0]]++;
sumOther[e[1]] +=
(unsmoothedPoints[e[0]]&userDirection);
nSumOther[e[1]]++;
}
syncTools::syncPointList
(
mesh,
sumOther,
plusEqOp<scalar>(),
0.0
);
syncTools::syncPointList
(
mesh,
nSumOther,
plusEqOp<label>(),
0
);
for (auto pointi : pointLabels)
{
label leftEdgei = leftEdge[pointi];
bool isSeedPoint = false;
if (leftEdgeMag[pointi] <= 0.0)
{
isSeedPoint = true;
}
else if (leftEdgei != -1)
{
const edge& e = edges[leftEdgei];
label otherPointi = e.otherVertex(pointi);
if (!isInsidePoint[otherPointi])
{
isSeedPoint = true;
}
}
if (!isSeedPoint)
{
scalar smoothPos =
0.5
*(
(unsmoothedPoints[pointi]&userDirection)
+sumOther[pointi]/nSumOther[pointi]
);
vector& v = newPoints[pointi];
v += (smoothPos-(v&userDirection))*userDirection;
}
}
}
// Move mesh to new location
vectorField disp(newPoints-mesh.points());
syncTools::syncPointList
(
mesh,
disp,
maxMagSqrEqOp<vector>(),
point::zero
);
mesh.movePoints(mesh.points()+disp);
if (debug&meshRefinement::MESH)
{
Pout<< "Writing directional smooting iteration "
<< iter << " mesh to time " << meshRefiner_.timeName()
<< endl;
meshRefiner_.write
(
meshRefinement::debugType(debug),
meshRefinement::writeType
(
meshRefinement::writeLevel()
| meshRefinement::WRITEMESH
),
mesh.time().path()/meshRefiner_.timeName()
);
}
}
}
}
return iter;
}
void Foam::snappyRefineDriver::baffleAndSplitMesh
(
const refinementParameters& refineParams,
@ -2285,6 +2857,12 @@ void Foam::snappyRefineDriver::doRefine
100 // maxIter
);
if (max(meshRefiner_.shells().nSmoothExpansion()) > 0)
{
directionalSmooth(refineParams);
}
// Introduce baffles at surface intersections. Remove sections unreachable
// from keepPoint.
baffleAndSplitMesh

View File

@ -38,6 +38,8 @@ SourceFiles
#include "labelList.H"
#include "PackedBoolList.H"
#include "labelVector.H"
#include "vector.H"
#include "scalarField.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@ -144,7 +146,7 @@ class snappyRefineDriver
const label maxIter
);
// Directional refinement
// Directional refinement and smoothing
//- Refine (directional) all cells inside/outside shell
label directionalShellRefine
@ -153,6 +155,21 @@ class snappyRefineDriver
const label maxIter
);
//- Calculate local edge length from cell volumes
void getVirtualEdgeLength
(
const vector& userDirection,
const labelList& pointLabels,
const PackedBoolList& isXFace,
scalarField& maxUserSize
) const;
//- Smooth the directional expansion ratio
label directionalSmooth
(
const refinementParameters& refineParams
);
//- Add baffles and remove unreachable cells
void baffleAndSplitMesh
(