292 lines
7.8 KiB
C
292 lines
7.8 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | foam-extend: Open Source CFD
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\\ / O peration | Version: 3.2
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\\ / A nd | Web: http://www.foam-extend.org
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\\/ M anipulation | For copyright notice see file Copyright
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-------------------------------------------------------------------------------
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License
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This file is part of foam-extend.
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foam-extend is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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foam-extend is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with foam-extend. If not, see <http://www.gnu.org/licenses/>.
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\*---------------------------------------------------------------------------*/
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#include "channelIndex.H"
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#include "boolList.H"
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#include "syncTools.H"
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#include "OFstream.H"
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#include "meshTools.H"
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#include "Time.H"
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#include "SortableList.H"
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// * * * * * * * * * * * * * Static Member Data * * * * * * * * * * * * * * //
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template<>
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const char* Foam::NamedEnum<Foam::vector::components, 3>::names[] =
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{
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"x",
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"y",
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"z"
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};
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const Foam::NamedEnum<Foam::vector::components, 3>
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Foam::channelIndex::vectorComponentsNames_;
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// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
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// Determines face blocking
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void Foam::channelIndex::walkOppositeFaces
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(
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const polyMesh& mesh,
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const labelList& startFaces,
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boolList& blockedFace
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)
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{
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const cellList& cells = mesh.cells();
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const faceList& faces = mesh.faces();
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label nBnd = mesh.nFaces() - mesh.nInternalFaces();
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DynamicList<label> frontFaces(startFaces);
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forAll(frontFaces, i)
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{
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label faceI = frontFaces[i];
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blockedFace[faceI] = true;
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}
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while (returnReduce(frontFaces.size(), sumOp<label>()) > 0)
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{
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// Transfer across.
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boolList isFrontBndFace(nBnd, false);
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forAll(frontFaces, i)
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{
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label faceI = frontFaces[i];
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if (!mesh.isInternalFace(faceI))
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{
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isFrontBndFace[faceI-mesh.nInternalFaces()] = true;
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}
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}
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syncTools::swapBoundaryFaceList(mesh, isFrontBndFace, false);
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// Add
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forAll(isFrontBndFace, i)
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{
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label faceI = mesh.nInternalFaces()+i;
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if (isFrontBndFace[i] && !blockedFace[faceI])
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{
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blockedFace[faceI] = true;
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frontFaces.append(faceI);
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}
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}
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// Transfer across cells
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DynamicList<label> newFrontFaces(frontFaces.size());
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forAll(frontFaces, i)
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{
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label faceI = frontFaces[i];
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{
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const cell& ownCell = cells[mesh.faceOwner()[faceI]];
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label oppositeFaceI = ownCell.opposingFaceLabel(faceI, faces);
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if (oppositeFaceI == -1)
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{
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FatalErrorIn("channelIndex::walkOppositeFaces(..)")
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<< "Face:" << faceI << " owner cell:" << ownCell
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<< " is not a hex?" << abort(FatalError);
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}
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else
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{
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if (!blockedFace[oppositeFaceI])
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{
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blockedFace[oppositeFaceI] = true;
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newFrontFaces.append(oppositeFaceI);
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}
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}
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}
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if (mesh.isInternalFace(faceI))
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{
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const cell& neiCell = mesh.cells()[mesh.faceNeighbour()[faceI]];
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label oppositeFaceI = neiCell.opposingFaceLabel(faceI, faces);
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if (oppositeFaceI == -1)
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{
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FatalErrorIn("channelIndex::walkOppositeFaces(..)")
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<< "Face:" << faceI << " neighbour cell:" << neiCell
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<< " is not a hex?" << abort(FatalError);
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}
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else
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{
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if (!blockedFace[oppositeFaceI])
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{
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blockedFace[oppositeFaceI] = true;
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newFrontFaces.append(oppositeFaceI);
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}
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}
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}
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}
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frontFaces.transfer(newFrontFaces);
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}
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}
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// Calculate regions.
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void Foam::channelIndex::calcLayeredRegions
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(
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const polyMesh& mesh,
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const labelList& startFaces
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)
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{
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boolList blockedFace(mesh.nFaces(), false);
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walkOppositeFaces
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(
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mesh,
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startFaces,
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blockedFace
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);
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if (false)
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{
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OFstream str(mesh.time().path()/"blockedFaces.obj");
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label vertI = 0;
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forAll(blockedFace, faceI)
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{
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if (blockedFace[faceI])
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{
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const face& f = mesh.faces()[faceI];
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forAll(f, fp)
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{
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meshTools::writeOBJ(str, mesh.points()[f[fp]]);
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}
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str<< 'f';
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forAll(f, fp)
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{
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str << ' ' << vertI+fp+1;
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}
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str << nl;
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vertI += f.size();
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}
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}
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}
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// Do analysis for connected regions
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cellRegion_.reset(new regionSplit(mesh, blockedFace));
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Info<< "Detected " << cellRegion_().nRegions() << " layers." << nl << endl;
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// Sum number of entries per region
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regionCount_ = regionSum(scalarField(mesh.nCells(), 1.0));
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// Average cell centres to determine ordering.
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pointField regionCc
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(
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regionSum(mesh.cellCentres())
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/ regionCount_
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);
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SortableList<scalar> sortComponent(regionCc.component(dir_));
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sortMap_ = sortComponent.indices();
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y_ = sortComponent;
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if (symmetric_)
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{
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y_.setSize(cellRegion_().nRegions()/2);
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}
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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Foam::channelIndex::channelIndex
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(
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const polyMesh& mesh,
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const dictionary& dict
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)
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:
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symmetric_(readBool(dict.lookup("symmetric"))),
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dir_(vectorComponentsNames_.read(dict.lookup("component")))
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{
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const polyBoundaryMesh& patches = mesh.boundaryMesh();
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const wordList patchNames(dict.lookup("patches"));
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label nFaces = 0;
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forAll(patchNames, i)
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{
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label patchI = patches.findPatchID(patchNames[i]);
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if (patchI == -1)
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{
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FatalErrorIn("channelIndex::channelIndex(const polyMesh&)")
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<< "Illegal patch " << patchNames[i]
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<< ". Valid patches are " << patches.name()
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<< exit(FatalError);
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}
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nFaces += patches[patchI].size();
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}
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labelList startFaces(nFaces);
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nFaces = 0;
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forAll(patchNames, i)
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{
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const polyPatch& pp = patches[patches.findPatchID(patchNames[i])];
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forAll(pp, j)
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{
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startFaces[nFaces++] = pp.start()+j;
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}
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}
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// Calculate regions.
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calcLayeredRegions(mesh, startFaces);
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}
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Foam::channelIndex::channelIndex
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(
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const polyMesh& mesh,
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const labelList& startFaces,
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const bool symmetric,
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const direction dir
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)
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:
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symmetric_(symmetric),
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dir_(dir)
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{
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// Calculate regions.
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calcLayeredRegions(mesh, startFaces);
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}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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// * * * * * * * * * * * * * * * Member Operators * * * * * * * * * * * * * //
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// ************************************************************************* //
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