500 lines
12 KiB
C++
500 lines
12 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) 2011-2021 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 "streamlinesParticle.H"
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#include "streamlinesCloud.H"
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#include "vectorFieldIOField.H"
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#include "scalarFieldIOField.H"
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// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
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Foam::vector Foam::streamlinesParticle::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::streamlinesParticle::streamlinesParticle
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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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age_(0)
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{}
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Foam::streamlinesParticle::streamlinesParticle
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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_ >> age_ >> sampledPositions_ >> sampledTimes_
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>> sampledScalars >> 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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// Check state of Istream
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is.check
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(
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"streamlinesParticle::streamlinesParticle"
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"(const Cloud<streamlinesParticle>&, Istream&, bool)"
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);
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}
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Foam::streamlinesParticle::streamlinesParticle
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(
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const streamlinesParticle& 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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age_(p.age_),
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sampledPositions_(p.sampledPositions_),
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sampledTimes_(p.sampledTimes_),
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sampledScalars_(p.sampledScalars_),
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sampledVectors_(p.sampledVectors_)
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{}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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bool Foam::streamlinesParticle::move
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(
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streamlinesCloud& cloud,
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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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sampledTimes_.append(age_);
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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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age_ +=
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(td.trackForward_ ? +1 : -1)
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*dt
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*(1 - trackToAndHitFace(dt*U, 0, cloud, 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<< "streamlinesParticle: 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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sampledTimes_.append(age_);
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interpolateFields(td, position(), cell(), face());
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if (debug)
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{
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Pout<< "streamlinesParticle: 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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{
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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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}
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{
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td.allTimes_.append(scalarList());
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scalarList& top = td.allTimes_.last();
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top.transfer(sampledTimes_);
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}
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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::streamlinesParticle::hitPatch(streamlinesCloud&, trackingData&)
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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::streamlinesParticle::hitWedgePatch
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(
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streamlinesCloud&,
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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::streamlinesParticle::hitSymmetryPlanePatch
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(
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streamlinesCloud&,
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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::streamlinesParticle::hitSymmetryPatch
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(
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streamlinesCloud&,
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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::streamlinesParticle::hitCyclicPatch
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(
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streamlinesCloud&,
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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::streamlinesParticle::hitCyclicAMIPatch
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(
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const vector&,
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const scalar,
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streamlinesCloud&,
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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::streamlinesParticle::hitCyclicACMIPatch
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(
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const vector&,
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const scalar,
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streamlinesCloud&,
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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::streamlinesParticle::hitCyclicRepeatAMIPatch
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(
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const vector&,
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const scalar,
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streamlinesCloud&,
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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::streamlinesParticle::hitProcessorPatch
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(
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streamlinesCloud&,
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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::streamlinesParticle::hitWallPatch
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(
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streamlinesCloud&,
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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::streamlinesParticle::readFields(Cloud<streamlinesParticle>& 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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bool valid = c.size();
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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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valid
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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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valid
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);
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c.checkFieldIOobject(c, sampledPositions);
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scalarFieldIOField sampledTimes
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(
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c.fieldIOobject("sampledTimes", IOobject::MUST_READ),
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valid
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);
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c.checkFieldIOobject(c, sampledTimes);
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label i = 0;
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forAllIter(Cloud<streamlinesParticle>, 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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iter().sampledTimes_.transfer(sampledTimes[i]);
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i++;
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}
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}
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void Foam::streamlinesParticle::writeFields(const Cloud<streamlinesParticle>& 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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scalarFieldIOField sampledTimes
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(
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c.fieldIOobject("sampledTimes", 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<streamlinesParticle>, 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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sampledTimes[i] = iter().sampledTimes_;
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i++;
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}
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lifeTime.write(np > 0);
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sampledPositions.write(np > 0);
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sampledTimes.write(np > 0);
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}
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// * * * * * * * * * * * * * * * IOstream Operators * * * * * * * * * * * * //
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Foam::Ostream& Foam::operator<<(Ostream& os, const streamlinesParticle& 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.age_
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<< token::SPACE << p.sampledPositions_
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<< token::SPACE << p.sampledTimes_
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<< token::SPACE << p.sampledScalars_
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<< token::SPACE << p.sampledVectors_;
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// Check state of Ostream
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os.check("Ostream& operator<<(Ostream&, const streamlinesParticle&)");
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return os;
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}
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// ************************************************************************* //
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