7592a81c6e
This new mapping structure is designed to support run-time mesh-to-mesh mapping to allow arbitrary changes to the mesh structure, for example during extreme motion requiring significant topology change including region disconnection etc.
172 lines
4.6 KiB
C++
172 lines
4.6 KiB
C++
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration | Website: https://openfoam.org
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\\ / A nd | Copyright (C) 2011-2022 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM 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
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM 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 OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Application
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removeFaces
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Description
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Utility to remove faces (combines cells on both sides).
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Takes faceSet of candidates for removal and writes faceSet with faces that
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will actually be removed. (because e.g. would cause two faces between the
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same cells). See removeFaces in dynamicMesh library for constraints.
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\*---------------------------------------------------------------------------*/
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#include "argList.H"
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#include "Time.H"
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#include "polyTopoChange.H"
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#include "faceSet.H"
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#include "removeFaces.H"
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#include "ReadFields.H"
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#include "volFields.H"
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#include "surfaceFields.H"
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#include "pointFields.H"
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using namespace Foam;
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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int main(int argc, char *argv[])
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{
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#include "addOverwriteOption.H"
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argList::validArgs.append("faceSet");
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argList::addBoolOption
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(
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"noFields",
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"do not update fields"
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);
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#include "setRootCase.H"
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#include "createTime.H"
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runTime.functionObjects().off();
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const bool overwrite = args.optionFound("overwrite");
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const bool fields = !args.optionFound("noFields");
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#include "createMeshNoChangers.H"
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const word oldInstance = mesh.pointsInstance();
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const word setName = args[1];
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// Read faces
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faceSet candidateSet(mesh, setName);
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Pout<< "Read " << candidateSet.size() << " faces to remove" << nl
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<< endl;
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labelList candidates(candidateSet.toc());
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// Face removal engine. No checking for not merging boundary faces.
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removeFaces faceRemover(mesh, 2);
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// Get compatible set of faces and connected sets of cells.
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labelList cellRegion;
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labelList cellRegionMaster;
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labelList facesToRemove;
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faceRemover.compatibleRemoves
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(
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candidates,
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cellRegion,
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cellRegionMaster,
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facesToRemove
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);
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{
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faceSet compatibleRemoves(mesh, "compatibleRemoves", facesToRemove);
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Pout<< "Original faces to be removed:" << candidateSet.size() << nl
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<< "New faces to be removed:" << compatibleRemoves.size() << nl
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<< endl;
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Pout<< "Writing new faces to be removed to faceSet "
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<< compatibleRemoves.instance()
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/compatibleRemoves.local()
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/compatibleRemoves.name()
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<< endl;
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compatibleRemoves.write();
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}
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// Read objects in time directory
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IOobjectList objects(mesh, runTime.timeName());
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if (fields) Info<< "Reading geometric fields" << nl << endl;
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#include "readVolFields.H"
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#include "readSurfaceFields.H"
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#include "readPointFields.H"
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Info<< endl;
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// Topo changes container
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polyTopoChange meshMod(mesh);
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// Insert mesh refinement into polyTopoChange.
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faceRemover.setRefinement
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(
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facesToRemove,
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cellRegion,
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cellRegionMaster,
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meshMod
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);
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autoPtr<polyTopoChangeMap> map = meshMod.changeMesh(mesh, false);
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mesh.topoChange(map);
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// Move mesh (since morphing does not do this)
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if (map().hasMotionPoints())
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{
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mesh.movePoints(map().preMotionPoints());
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}
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// Update numbering of cells/vertices.
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faceRemover.topoChange(map);
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if (!overwrite)
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{
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runTime++;
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}
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else
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{
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mesh.setInstance(oldInstance);
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}
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// Take over refinement levels and write to new time directory.
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Pout<< "Writing mesh to time " << runTime.timeName() << endl;
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mesh.write();
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Pout<< "End\n" << endl;
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return 0;
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}
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// ************************************************************************* //
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