19c3e0cb84
The concept of cell and face inflation proved unworkable in general and has been replaced by the more flexible and robust cell-splitting combined with conservative interpolative mapping and mesh morphing as appropriate.
170 lines
4.8 KiB
C++
170 lines
4.8 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) 2011-2024 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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refineHexMesh
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Description
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Refines a hex mesh by 2x2x2 cell splitting.
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\*---------------------------------------------------------------------------*/
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#include "fvMesh.H"
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#include "pointMesh.H"
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#include "argList.H"
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#include "Time.H"
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#include "hexRef8.H"
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#include "cellSet.H"
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#include "OFstream.H"
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#include "meshTools.H"
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#include "IFstream.H"
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#include "polyTopoChange.H"
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#include "polyTopoChangeMap.H"
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#include "volFields.H"
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#include "pointFields.H"
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#include "ReadFields.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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#include "addRegionOption.H"
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argList::validArgs.append("cellSet");
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argList::addBoolOption
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(
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"minSet",
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"remove cells from input cellSet to keep to 2:1 ratio"
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" (default is to extend set)"
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);
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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 "createTimeNoFunctionObjects.H"
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const bool overwrite = args.optionFound("overwrite");
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const bool minSet = args.optionFound("minSet");
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const bool fields = !args.optionFound("noFields");
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#include "createRegionMeshNoChangers.H"
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const word oldInstance = mesh.pointsInstance();
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word cellSetName(args.args()[1]);
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Info<< "Reading cells to refine from cellSet " << cellSetName
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<< nl << endl;
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cellSet cellsToRefine(mesh, cellSetName);
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Info<< "Read " << returnReduce(cellsToRefine.size(), sumOp<label>())
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<< " cells to refine from cellSet " << cellSetName << nl
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<< endl;
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// Read objects in time directory
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IOobjectList objects(mesh, runTime.name());
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if (fields) Info<< "Reading geometric fields" << nl << endl;
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#include "readVolFields.H"
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// Cannot reliable map surfaceFields to new internal faces
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// #include "readSurfaceFields.H"
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#include "readPointFields.H"
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Info<< endl;
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// Construct refiner without unrefinement. Read existing point/cell level.
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hexRef8 meshCutter(mesh);
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// Some stats
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Info<< "Read mesh:" << nl
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<< " cells:" << mesh.globalData().nTotalCells() << nl
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<< " faces:" << mesh.globalData().nTotalFaces() << nl
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<< " points:" << mesh.globalData().nTotalPoints() << nl
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<< " cellLevel :"
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<< " min:" << gMin(meshCutter.cellLevel())
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<< " max:" << gMax(meshCutter.cellLevel()) << nl
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<< " pointLevel :"
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<< " min:" << gMin(meshCutter.pointLevel())
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<< " max:" << gMax(meshCutter.pointLevel()) << nl
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<< endl;
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// Maintain 2:1 ratio
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labelList newCellsToRefine
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(
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meshCutter.consistentRefinement
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(
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cellsToRefine.toc(),
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!minSet // extend set
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)
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);
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// Mesh changing engine.
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polyTopoChange meshMod(mesh);
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// Play refinement commands into mesh changer.
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meshCutter.setRefinement(newCellsToRefine, meshMod);
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if (!overwrite)
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{
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runTime++;
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}
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// Create mesh, return map from old to new mesh.
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autoPtr<polyTopoChangeMap> map = meshMod.changeMesh(mesh);
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// Update fields
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mesh.topoChange(map);
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// Update numbering of cells/vertices.
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meshCutter.topoChange(map);
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Info<< "Refined from " << returnReduce(map().nOldCells(), sumOp<label>())
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<< " to " << mesh.globalData().nTotalCells() << " cells." << nl << endl;
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if (overwrite)
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{
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mesh.setInstance(oldInstance);
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meshCutter.setInstance(oldInstance);
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}
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Info<< "Writing mesh to " << runTime.name() << endl;
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mesh.write();
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meshCutter.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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