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9b57ef06cf
Particle collisions with ACMI patches are now handled. The hit detects whether the location is within the overlap or the coupled region and recurses, calling the hit routine appropriate for the region. The low level tracking methods are now more consistently named. There is now a distinction between tracking to a face and hitting it. Function object side effects have been moved out of the base layer and into the parcels on which they are meaningful.
435 lines
10 KiB
C
435 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 | Copyright (C) 2011-2017 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 "streamLineParticle.H"
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#include "vectorFieldIOField.H"
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// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
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Foam::vector Foam::streamLineParticle::interpolateFields
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(
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const trackingData& td,
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const point& position,
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const label celli,
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const label facei
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)
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{
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if (celli == -1)
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{
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FatalErrorInFunction
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<< "Cell:" << celli << abort(FatalError);
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}
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sampledScalars_.setSize(td.vsInterp_.size());
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forAll(td.vsInterp_, scalari)
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{
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sampledScalars_[scalari].append
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(
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td.vsInterp_[scalari].interpolate
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(
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position,
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celli,
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facei
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)
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);
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}
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sampledVectors_.setSize(td.vvInterp_.size());
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forAll(td.vvInterp_, vectori)
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{
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sampledVectors_[vectori].append
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(
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td.vvInterp_[vectori].interpolate
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(
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position,
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celli,
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facei
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)
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);
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}
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const DynamicList<vector>& U = sampledVectors_[td.UIndex_];
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return U.last();
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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Foam::streamLineParticle::streamLineParticle
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(
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const polyMesh& mesh,
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const vector& position,
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const label celli,
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const label lifeTime
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)
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:
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particle(mesh, position, celli),
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lifeTime_(lifeTime)
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{}
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Foam::streamLineParticle::streamLineParticle
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(
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const polyMesh& mesh,
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Istream& is,
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bool readFields
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)
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:
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particle(mesh, is, readFields)
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{
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if (readFields)
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{
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List<scalarList> sampledScalars;
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List<vectorList> sampledVectors;
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is >> lifeTime_ >> sampledPositions_ >> sampledScalars
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>> sampledVectors;
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sampledScalars_.setSize(sampledScalars.size());
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forAll(sampledScalars, i)
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{
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sampledScalars_[i].transfer(sampledScalars[i]);
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}
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sampledVectors_.setSize(sampledVectors.size());
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forAll(sampledVectors, i)
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{
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sampledVectors_[i].transfer(sampledVectors[i]);
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}
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}
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is.check(FUNCTION_NAME);
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}
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Foam::streamLineParticle::streamLineParticle
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(
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const streamLineParticle& p
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)
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:
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particle(p),
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lifeTime_(p.lifeTime_),
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sampledPositions_(p.sampledPositions_),
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sampledScalars_(p.sampledScalars_)
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{}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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bool Foam::streamLineParticle::move
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(
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trackingData& td,
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const scalar
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)
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{
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td.switchProcessor = false;
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td.keepParticle = true;
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const scalar maxDt = mesh().bounds().mag();
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while (td.keepParticle && !td.switchProcessor && lifeTime_ > 0)
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{
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scalar dt = maxDt;
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// Cross cell in steps:
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// - at subiter 0 calculate dt to cross cell in nSubCycle steps
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// - at the last subiter do all of the remaining track
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for (label subIter = 0; subIter < max(1, td.nSubCycle_); subIter++)
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{
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--lifeTime_;
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// Store current position and sampled velocity.
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sampledPositions_.append(position());
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vector U = interpolateFields(td, position(), cell(), face());
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if (!td.trackForward_)
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{
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U = -U;
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}
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scalar magU = mag(U);
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if (magU < SMALL)
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{
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// Stagnant particle. Might as well stop
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lifeTime_ = 0;
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break;
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}
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U /= magU;
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if (td.trackLength_ < GREAT)
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{
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// No sub-cycling. Track a set length on each step.
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dt = td.trackLength_;
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}
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else if (subIter == 0)
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{
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// Sub-cycling. Cross the cell in nSubCycle steps.
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particle copy(*this);
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copy.trackToFace(maxDt*U, 1);
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dt *= (copy.stepFraction() - stepFraction())/td.nSubCycle_;
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}
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else if (subIter == td.nSubCycle_ - 1)
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{
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// Sub-cycling. Track the whole cell on the last step.
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dt = maxDt;
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}
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trackToAndHitFace(dt*U, 0, td);
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if
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(
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onFace()
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|| !td.keepParticle
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|| td.switchProcessor
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|| lifeTime_ == 0
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)
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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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if (!td.keepParticle || lifeTime_ == 0)
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{
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if (lifeTime_ == 0)
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{
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// Failure exit. Particle stagnated or it's life ran out.
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if (debug)
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{
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Pout<< "streamLineParticle: Removing stagnant particle:"
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<< position() << " sampled positions:"
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<< sampledPositions_.size() << endl;
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}
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td.keepParticle = false;
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}
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else
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{
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// Normal exit. Store last position and fields
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sampledPositions_.append(position());
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interpolateFields(td, position(), cell(), face());
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if (debug)
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{
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Pout<< "streamLineParticle: Removing particle:" << position()
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<< " sampled positions:" << sampledPositions_.size()
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<< endl;
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}
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}
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// Transfer particle data into trackingData.
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td.allPositions_.append(vectorList());
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vectorList& top = td.allPositions_.last();
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top.transfer(sampledPositions_);
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forAll(sampledScalars_, i)
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{
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td.allScalars_[i].append(scalarList());
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scalarList& top = td.allScalars_[i].last();
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top.transfer(sampledScalars_[i]);
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}
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forAll(sampledVectors_, i)
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{
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td.allVectors_[i].append(vectorList());
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vectorList& top = td.allVectors_[i].last();
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top.transfer(sampledVectors_[i]);
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}
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}
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return td.keepParticle;
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}
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bool Foam::streamLineParticle::hitPatch
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(
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const polyPatch&,
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trackingData& td,
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const label patchi,
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const scalar trackFraction,
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const tetIndices& tetIs
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)
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{
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// Disable generic patch interaction
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return false;
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}
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void Foam::streamLineParticle::hitWedgePatch
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(
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const wedgePolyPatch& pp,
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trackingData& td
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)
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{
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// Remove particle
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td.keepParticle = false;
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}
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void Foam::streamLineParticle::hitSymmetryPlanePatch
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(
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const symmetryPlanePolyPatch& pp,
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trackingData& td
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)
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{
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// Remove particle
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td.keepParticle = false;
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}
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void Foam::streamLineParticle::hitSymmetryPatch
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(
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const symmetryPolyPatch& pp,
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trackingData& td
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)
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{
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// Remove particle
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td.keepParticle = false;
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}
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void Foam::streamLineParticle::hitCyclicPatch
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(
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const cyclicPolyPatch& pp,
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trackingData& td
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)
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{
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// Remove particle
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td.keepParticle = false;
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}
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void Foam::streamLineParticle::hitProcessorPatch
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(
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const processorPolyPatch&,
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trackingData& td
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)
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{
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// Switch particle
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td.switchProcessor = true;
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}
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void Foam::streamLineParticle::hitWallPatch
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(
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const wallPolyPatch& wpp,
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trackingData& td,
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const tetIndices&
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)
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{
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// Remove particle
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td.keepParticle = false;
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}
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void Foam::streamLineParticle::hitPatch
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(
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const polyPatch& wpp,
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trackingData& td
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)
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{
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// Remove particle
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td.keepParticle = false;
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}
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void Foam::streamLineParticle::readFields(Cloud<streamLineParticle>& c)
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{
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if (!c.size())
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{
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return;
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}
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particle::readFields(c);
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IOField<label> lifeTime
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(
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c.fieldIOobject("lifeTime", IOobject::MUST_READ)
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);
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c.checkFieldIOobject(c, lifeTime);
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vectorFieldIOField sampledPositions
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(
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c.fieldIOobject("sampledPositions", IOobject::MUST_READ)
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);
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c.checkFieldIOobject(c, sampledPositions);
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label i = 0;
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forAllIter(Cloud<streamLineParticle>, c, iter)
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{
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iter().lifeTime_ = lifeTime[i];
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iter().sampledPositions_.transfer(sampledPositions[i]);
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i++;
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}
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}
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void Foam::streamLineParticle::writeFields(const Cloud<streamLineParticle>& c)
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{
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particle::writeFields(c);
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label np = c.size();
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IOField<label> lifeTime
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(
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c.fieldIOobject("lifeTime", IOobject::NO_READ),
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np
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);
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vectorFieldIOField sampledPositions
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(
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c.fieldIOobject("sampledPositions", IOobject::NO_READ),
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np
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);
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label i = 0;
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forAllConstIter(Cloud<streamLineParticle>, c, iter)
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{
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lifeTime[i] = iter().lifeTime_;
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sampledPositions[i] = iter().sampledPositions_;
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i++;
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}
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lifeTime.write();
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sampledPositions.write();
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}
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// * * * * * * * * * * * * * * * IOstream Operators * * * * * * * * * * * * //
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Foam::Ostream& Foam::operator<<(Ostream& os, const streamLineParticle& p)
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{
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os << static_cast<const particle&>(p)
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<< token::SPACE << p.lifeTime_
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<< token::SPACE << p.sampledPositions_
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<< token::SPACE << p.sampledScalars_
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<< token::SPACE << p.sampledVectors_;
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os.check(FUNCTION_NAME);
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return os;
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}
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// ************************************************************************* //
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