149 lines
4 KiB
C
149 lines
4 KiB
C
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | cfMesh: A library for mesh generation
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\\ / O peration |
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\\ / A nd | Author: Franjo Juretic (franjo.juretic@c-fields.com)
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\\/ M anipulation | Copyright (C) Creative Fields, Ltd.
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-------------------------------------------------------------------------------
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License
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This file is part of cfMesh.
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cfMesh 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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cfMesh is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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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 cfMesh. If not, see <http://www.gnu.org/licenses/>.
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Description
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Generates boundary layers in the existing mesh, based on the settings
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given in meshDict. It also performs necessary quality optimisation.
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\*---------------------------------------------------------------------------*/
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#include "argList.H"
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#include "Time.H"
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#include "polyMeshGenModifier.H"
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#include "meshOptimizer.H"
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#include "boundaryLayers.H"
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#include "refineBoundaryLayers.H"
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using namespace Foam;
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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void generateLayer
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(
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polyMeshGen& mesh,
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const dictionary& meshDict,
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const bool layers2D
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)
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{
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boundaryLayers bl(mesh);
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if( layers2D )
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bl.activate2DMode();
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if( meshDict.found("boundaryLayers") )
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{
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const dictionary& bndLayers = meshDict.subDict("boundaryLayers");
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if( bndLayers.found("nLayers") )
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{
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const label nLayers = readLabel(bndLayers.lookup("nLayers"));
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if( nLayers > 0 )
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bl.addLayerForAllPatches();
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}
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else if( bndLayers.found("patchBoundaryLayers") )
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{
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const dictionary& patchLayers =
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bndLayers.subDict("patchBoundaryLayers");
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const wordList createLayers = patchLayers.toc();
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forAll(createLayers, patchI)
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bl.addLayerForPatch(createLayers[patchI]);
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}
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}
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else
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{
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bl.addLayerForAllPatches();
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}
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}
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void meshOptimisation(polyMeshGen& mesh)
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{
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meshOptimizer mOpt(mesh);
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mOpt.optimizeMeshFV();
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mOpt.optimizeLowQualityFaces();
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mOpt.untangleMeshFV();
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mOpt.optimizeBoundaryLayer();
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mOpt.untangleMeshFV();
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}
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void layerRefinement(polyMeshGen& mesh, const dictionary& meshDict)
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{
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if( meshDict.isDict("boundaryLayers") )
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{
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refineBoundaryLayers refLayers(mesh);
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refineBoundaryLayers::readSettings(meshDict, refLayers);
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refLayers.refineLayers();
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meshOptimizer(mesh).untangleBoundaryLayer();
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}
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}
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int main(int argc, char *argv[])
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{
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argList::validOptions.insert("2DLayers", "bool");
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# include "setRootCase.H"
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# include "createTime.H"
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IOdictionary meshDict
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(
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IOobject
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(
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"meshDict",
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runTime.system(),
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runTime,
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IOobject::MUST_READ,
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IOobject::NO_WRITE
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)
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);
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//- load the mesh from disk
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polyMeshGen pmg(runTime);
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pmg.read();
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bool is2DLayer(false);
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if( args.options().found("2DLayers") )
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is2DLayer = true;
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//- generate the initial boundary layer
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generateLayer(pmg, meshDict, is2DLayer);
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//- optimisation of mesh quality
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meshOptimisation(pmg);
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//- perform layer refinement
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layerRefinement(pmg, meshDict);
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Info << "Writing mesh" << endl;
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pmg.write();
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Info << "End\n" << endl;
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return 0;
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}
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// ************************************************************************* //
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