1d7e1a7ad5
The use of the term 'source' in the context of post-processing is confusing and does not properly describe the process of region selection. The new names 'surfaceRegion' and 'volRegion' better describe the purpose of the functionObjects which is to provide field processing functionality limited to a specified region of space, either a surface or volume. The keyword 'source' is renamed 'regionType' which better describes the purpose which is to specify the method by which the surface or volume region is selected. The keyword to select the name of the surface or volume region is renamed from 'sourceName' to 'name' consistent with the other name-changes above.
342 lines
8.3 KiB
C
342 lines
8.3 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 | Copyright (C) 2012-2016 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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\*---------------------------------------------------------------------------*/
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#include "targetVolumeToCell.H"
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#include "polyMesh.H"
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#include "globalMeshData.H"
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#include "plane.H"
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#include "cellSet.H"
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#include "addToRunTimeSelectionTable.H"
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// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
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namespace Foam
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{
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defineTypeNameAndDebug(targetVolumeToCell, 0);
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addToRunTimeSelectionTable(topoSetSource, targetVolumeToCell, word);
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addToRunTimeSelectionTable(topoSetSource, targetVolumeToCell, istream);
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}
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Foam::topoSetSource::addToUsageTable Foam::targetVolumeToCell::usage_
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(
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targetVolumeToCell::typeName,
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"\n Usage: targetVolumeToCell (nx ny nz)\n\n"
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" Adjust plane until obtained selected volume\n\n"
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);
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// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
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Foam::scalar Foam::targetVolumeToCell::volumeOfSet
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(
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const PackedBoolList& selected
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) const
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{
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scalar sumVol = 0.0;
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forAll(selected, celli)
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{
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if (selected[celli])
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{
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sumVol += mesh_.cellVolumes()[celli];
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}
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}
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return returnReduce(sumVol, sumOp<scalar>());
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}
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Foam::label Foam::targetVolumeToCell::selectCells
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(
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const scalar normalComp,
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const PackedBoolList& maskSet,
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PackedBoolList& selected
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) const
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{
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selected.setSize(mesh_.nCells());
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selected = false;
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label nSelected = 0;
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forAll(mesh_.cellCentres(), celli)
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{
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const point& cc = mesh_.cellCentres()[celli];
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if (maskSet[celli] && ((cc&n_) < normalComp))
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{
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selected[celli] = true;
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nSelected++;
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}
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}
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return returnReduce(nSelected, sumOp<label>());
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}
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void Foam::targetVolumeToCell::combine(topoSet& set, const bool add) const
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{
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if (vol_ <= 0)
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{
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// Select no cells
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return;
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}
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PackedBoolList maskSet(mesh_.nCells(), 1);
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label nTotCells = mesh_.globalData().nTotalCells();
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if (maskSetName_.size())
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{
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// Read cellSet
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Info<< " Operating on subset defined by cellSet " << maskSetName_
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<< endl;
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maskSet = 0;
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cellSet subset(mesh_, maskSetName_);
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forAllConstIter(cellSet, subset, iter)
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{
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maskSet[iter.key()] = 1;
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}
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nTotCells = returnReduce(subset.size(), sumOp<label>());
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}
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// Get plane for min,max volume.
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// Planes all have base (0 0 0) and fixed normal so work only on normal
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// component.
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scalar maxComp = -GREAT;
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label maxCells = 0;
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//scalar maxVol = 0;
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scalar minComp = GREAT;
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{
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const boundBox& bb = mesh_.bounds();
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pointField points(bb.points());
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//label minPointi = -1;
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label maxPointi = -1;
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forAll(points, pointi)
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{
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scalar c = (points[pointi]&n_);
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if (c > maxComp)
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{
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maxComp = c;
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maxPointi = pointi;
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}
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else if (c < minComp)
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{
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minComp = c;
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//minPointi = pointi;
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}
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}
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PackedBoolList maxSelected(mesh_.nCells());
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maxCells = selectCells(maxComp, maskSet, maxSelected);
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//maxVol = volumeOfSet(maxSelected);
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// Check that maxPoint indeed selects all cells
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if (maxCells != nTotCells)
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{
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WarningInFunction
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<< "Plane " << plane(points[maxPointi], n_)
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<< " selects " << maxCells
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<< " cells instead of all " << nTotCells
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<< " cells. Results might be wrong." << endl;
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}
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}
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// Bisection
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// ~~~~~~~~~
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PackedBoolList selected(mesh_.nCells());
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label nSelected = -1;
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scalar selectedVol = 0.0;
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//scalar selectedComp = 0.0;
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scalar low = minComp;
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scalar high = maxComp;
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const scalar tolerance = SMALL*100*(maxComp-minComp);
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while ((high-low) > tolerance)
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{
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scalar mid = 0.5*(low + high);
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nSelected = selectCells(mid, maskSet, selected);
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selectedVol = volumeOfSet(selected);
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//Pout<< "High:" << high << " low:" << low << " mid:" << mid << nl
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// << " nSelected:" << nSelected << nl
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// << " vol :" << selectedVol << nl
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// << endl;
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if (selectedVol < vol_)
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{
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low = mid;
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PackedBoolList highSelected(mesh_.nCells());
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label nHigh = selectCells(high, maskSet, selected);
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if (nSelected == nHigh)
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{
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break;
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}
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}
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else
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{
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high = mid;
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PackedBoolList lowSelected(mesh_.nCells());
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label nLow = selectCells(low, maskSet, selected);
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if (nSelected == nLow)
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{
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break;
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}
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}
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}
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nSelected = selectCells(high, maskSet, selected);
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selectedVol = volumeOfSet(selected);
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if (selectedVol < vol_)
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{
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//selectedComp = high;
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}
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else
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{
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nSelected = selectCells(low, maskSet, selected);
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selectedVol = volumeOfSet(selected);
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if (selectedVol < vol_)
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{
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//selectedComp = low;
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}
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else
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{
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WarningInFunction
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<< "Did not converge onto plane. " << nl
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<< "high plane:"
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<< plane(high*n_, n_)
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<< nl
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<< "low plane :"
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<< plane(low*n_, n_)
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<< endl;
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}
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}
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Info<< " Selected " << nSelected << " with actual volume " << selectedVol
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<< endl;
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forAll(selected, celli)
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{
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if (selected[celli])
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{
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addOrDelete(set, celli, add);
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}
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}
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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// Construct from components
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Foam::targetVolumeToCell::targetVolumeToCell
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(
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const polyMesh& mesh,
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const scalar vol,
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const vector& n
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)
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:
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topoSetSource(mesh),
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vol_(vol),
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n_(n)
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{}
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// Construct from dictionary
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Foam::targetVolumeToCell::targetVolumeToCell
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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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topoSetSource(mesh),
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vol_(readScalar(dict.lookup("volume"))),
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n_(dict.lookup("normal")),
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maskSetName_(dict.lookupOrDefault<word>("set", ""))
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{}
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// Construct from Istream
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Foam::targetVolumeToCell::targetVolumeToCell
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(
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const polyMesh& mesh,
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Istream& is
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)
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:
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topoSetSource(mesh),
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vol_(readScalar(checkIs(is))),
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n_(checkIs(is))
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{}
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// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
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Foam::targetVolumeToCell::~targetVolumeToCell()
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{}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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void Foam::targetVolumeToCell::applyToSet
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(
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const topoSetSource::setAction action,
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topoSet& set
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) const
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{
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if ((action == topoSetSource::NEW) || (action == topoSetSource::ADD))
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{
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Info<< " Adding cells up to target volume " << vol_
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<< " out of total volume " << gSum(mesh_.cellVolumes()) << endl;
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combine(set, true);
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}
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else if (action == topoSetSource::DELETE)
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{
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Info<< " Removing cells up to target volume " << vol_
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<< " out of total volume " << gSum(mesh_.cellVolumes()) << endl;
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combine(set, false);
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}
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}
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// ************************************************************************* //
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