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https://develop.openfoam.com/Development/openfoam.git
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01727c84f1
- for reciprocal values, gMinMax() first and then calculate the reciprocal, which avoids creating temporaries STYLE: prefer MinMax to separate min/max accounting COMP: namespace qualify min/max for deltaT, CourantNo, etc (#3348)
402 lines
10 KiB
C
402 lines
10 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | www.openfoam.com
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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Copyright (C) 2011-2017 OpenFOAM Foundation
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Copyright (C) 2018-2020 OpenCFD Ltd.
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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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refineMesh
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Group
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grpMeshManipulationUtilities
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Description
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Utility to refine cells in multiple directions.
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Command-line option handling:
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- If -all specified or no refineMeshDict exists or, refine all cells
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- If -dict \<file\> specified refine according to \<file\>
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- If refineMeshDict exists refine according to refineMeshDict
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When the refinement or all cells is selected apply 3D refinement for 3D
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cases and 2D refinement for 2D cases.
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\*---------------------------------------------------------------------------*/
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#include "argList.H"
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#include "polyMesh.H"
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#include "Time.H"
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#include "cellSet.H"
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#include "multiDirRefinement.H"
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#include "labelIOList.H"
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#include "IOdictionary.H"
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#include "syncTools.H"
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using namespace Foam;
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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// Max cos angle for edges to be considered aligned with axis.
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static const scalar edgeTol = 1e-3;
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// Print edge statistics on mesh.
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void printEdgeStats(const polyMesh& mesh)
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{
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label nAny(0);
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label nX(0);
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label nY(0);
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label nZ(0);
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scalarMinMax limitsAny(GREAT, -GREAT);
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scalarMinMax limitsX(limitsAny);
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scalarMinMax limitsY(limitsAny);
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scalarMinMax limitsZ(limitsAny);
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bitSet isMasterEdge(syncTools::getMasterEdges(mesh));
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const edgeList& edges = mesh.edges();
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for (const label edgei : isMasterEdge)
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{
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const edge& e = edges[edgei];
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vector eVec(e.vec(mesh.points()));
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scalar eMag = mag(eVec);
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eVec /= eMag;
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if (mag(eVec.x()) > 1-edgeTol)
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{
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limitsX.add(eMag);
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nX++;
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}
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else if (mag(eVec.y()) > 1-edgeTol)
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{
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limitsY.add(eMag);
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nY++;
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}
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else if (mag(eVec.z()) > 1-edgeTol)
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{
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limitsZ.add(eMag);
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nZ++;
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}
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else
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{
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limitsAny.add(eMag);
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nAny++;
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}
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}
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reduce(nX, sumOp<label>());
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reduce(nY, sumOp<label>());
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reduce(nZ, sumOp<label>());
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reduce(nAny, sumOp<label>());
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reduce(limitsX, sumOp<scalarMinMax>());
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reduce(limitsY, sumOp<scalarMinMax>());
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reduce(limitsZ, sumOp<scalarMinMax>());
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reduce(limitsAny, sumOp<scalarMinMax>());
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Info<< "Mesh edge statistics:" << nl
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<< " x aligned : number:" << nX
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<< "\tminLen:" << limitsX.min() << "\tmaxLen:" << limitsX.max() << nl
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<< " y aligned : number:" << nY
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<< "\tminLen:" << limitsY.min() << "\tmaxLen:" << limitsY.max() << nl
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<< " z aligned : number:" << nZ
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<< "\tminLen:" << limitsZ.min() << "\tmaxLen:" << limitsZ.max() << nl
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<< " other : number:" << nAny
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<< "\tminLen:" << limitsAny.min()
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<< "\tmaxLen:" << limitsAny.max() << nl << endl;
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}
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int main(int argc, char *argv[])
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{
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argList::addNote
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(
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"Refine cells in multiple directions"
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);
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#include "addOverwriteOption.H"
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#include "addRegionOption.H"
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argList::addOption("dict", "file", "Alternative refineMeshDict");
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argList::addBoolOption
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(
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"all",
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"Refine all cells"
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);
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argList::noFunctionObjects(); // Never use function objects
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#include "setRootCase.H"
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#include "createTime.H"
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#include "createNamedPolyMesh.H"
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const word oldInstance = mesh.pointsInstance();
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printEdgeStats(mesh);
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//
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// Read/construct control dictionary
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//
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const bool refineAllCells = args.found("all");
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const bool overwrite = args.found("overwrite");
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// List of cells to refine
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labelList refCells;
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// Dictionary to control refinement
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dictionary refineDict;
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// The -all option has precedence over -dict, or anything else
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if (!refineAllCells)
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{
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const word dictName("refineMeshDict");
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// Obtain dictPath here for messages
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fileName dictPath = args.getOrDefault<fileName>("dict", "");
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IOobject dictIO = IOobject::selectIO
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(
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IOobject
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(
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dictName,
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runTime.system(),
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mesh,
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IOobject::MUST_READ
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),
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dictPath
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);
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// The reported dictPath will not be full resolved for the output
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// (it will just be the -dict value) but this is purely cosmetic.
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if (dictIO.typeHeaderOk<IOdictionary>(true))
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{
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refineDict = IOdictionary(dictIO);
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Info<< "Refining according to ";
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if (dictPath.empty())
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{
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Info<< dictName;
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}
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else
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{
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Info<< dictPath;
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}
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Info<< nl << endl;
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}
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else if (dictPath.empty())
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{
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Info<< "Refinement dictionary " << dictName << " not found" << nl;
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}
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else
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{
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FatalErrorInFunction
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<< "Cannot open specified refinement dictionary "
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<< dictPath
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<< exit(FatalError);
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}
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}
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if (refineDict.size())
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{
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const word setName(refineDict.get<word>("set"));
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cellSet cells(mesh, setName);
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Info<< "Read " << returnReduce(cells.size(), sumOp<label>())
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<< " cells from cellSet "
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<< cells.instance()/cells.local()/cells.name()
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<< endl << endl;
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refCells = cells.toc();
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}
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else
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{
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Info<< "Refining all cells" << nl << endl;
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// Select all cells
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refCells = identity(mesh.nCells());
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if (mesh.nGeometricD() == 3)
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{
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Info<< "3D case; refining all directions" << nl << endl;
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wordList directions(3);
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directions[0] = "tan1";
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directions[1] = "tan2";
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directions[2] = "normal";
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refineDict.add("directions", directions);
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// Use hex cutter
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refineDict.add("useHexTopology", "true");
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}
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else
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{
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const Vector<label> dirs(mesh.geometricD());
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wordList directions(2);
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if (dirs.x() == -1)
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{
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Info<< "2D case; refining in directions y,z\n" << endl;
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directions[0] = "tan2";
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directions[1] = "normal";
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}
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else if (dirs.y() == -1)
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{
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Info<< "2D case; refining in directions x,z\n" << endl;
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directions[0] = "tan1";
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directions[1] = "normal";
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}
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else
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{
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Info<< "2D case; refining in directions x,y\n" << endl;
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directions[0] = "tan1";
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directions[1] = "tan2";
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}
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refineDict.add("directions", directions);
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// Use standard cutter
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refineDict.add("useHexTopology", "false");
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}
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refineDict.add("coordinateSystem", "global");
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dictionary coeffsDict;
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coeffsDict.add("tan1", vector(1, 0, 0));
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coeffsDict.add("tan2", vector(0, 1, 0));
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refineDict.add("globalCoeffs", coeffsDict);
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refineDict.add("geometricCut", "false");
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refineDict.add("writeMesh", "false");
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}
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string oldTimeName(runTime.timeName());
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if (!overwrite)
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{
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++runTime;
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}
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// Multi-directional refinement (does multiple iterations)
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multiDirRefinement multiRef(mesh, refCells, refineDict);
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// Write resulting mesh
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if (overwrite)
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{
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mesh.setInstance(oldInstance);
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}
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mesh.write();
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// Get list of cell splits.
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// (is for every cell in old mesh the cells they have been split into)
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const labelListList& oldToNew = multiRef.addedCells();
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// Create cellSet with added cells for easy inspection
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cellSet newCells(mesh, "refinedCells", refCells.size());
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for (const labelList& added : oldToNew)
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{
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newCells.insert(added);
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}
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Info<< "Writing refined cells ("
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<< returnReduce(newCells.size(), sumOp<label>())
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<< ") to cellSet "
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<< newCells.instance()/newCells.local()/newCells.name()
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<< endl << endl;
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newCells.write();
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//
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// Invert cell split to construct map from new to old
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//
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labelIOList newToOld
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(
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IOobject
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(
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"cellMap",
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runTime.timeName(),
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polyMesh::meshSubDir,
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mesh,
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IOobject::NO_READ,
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IOobject::AUTO_WRITE
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),
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mesh.nCells()
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);
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newToOld.note() =
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"From cells in mesh at "
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+ runTime.timeName()
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+ " to cells in mesh at "
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+ oldTimeName;
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forAll(oldToNew, oldCelli)
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{
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const labelList& added = oldToNew[oldCelli];
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if (added.size())
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{
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for (const label celli : added)
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{
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newToOld[celli] = oldCelli;
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}
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}
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else
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{
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// Unrefined cell
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newToOld[oldCelli] = oldCelli;
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}
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}
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Info<< "Writing map from new to old cell to "
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<< newToOld.objectPath() << nl << endl;
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newToOld.write();
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printEdgeStats(mesh);
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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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