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485 lines
11 KiB
C
485 lines
11 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) 1991-2010 OpenCFD Ltd.
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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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// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
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namespace Foam
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{
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defineParticleTypeNameAndDebug(streamLineParticle, 0);
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}
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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 streamLineParticle::trackData& td,
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const point& position,
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const label cellI
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)
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{
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if (cellI == -1)
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{
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FatalErrorIn("streamLineParticle::interpolateFields(..)")
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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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)
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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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)
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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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//- Construct from components
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Foam::streamLineParticle::streamLineParticle
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(
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const Cloud<streamLineParticle>& c,
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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<streamLineParticle>(c, position, cellI),
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lifeTime_(lifeTime)
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{}
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//- Construct from Istream
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Foam::streamLineParticle::streamLineParticle
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(
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const Cloud<streamLineParticle>& c,
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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<streamLineParticle>(c, is, readFields)
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{
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if (readFields)
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{
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//if (is.format() == IOstream::ASCII)
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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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// Check state of Istream
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is.check
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(
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"streamLineParticle::streamLineParticle"
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"(const Cloud<streamLineParticle>&, Istream&, bool)"
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);
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}
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// Construct copy
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Foam::streamLineParticle::streamLineParticle
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(
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const streamLineParticle& c
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)
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:
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Particle<streamLineParticle>(c),
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lifeTime_(c.lifeTime_),
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sampledPositions_(c.sampledPositions_),
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sampledScalars_(c.sampledScalars_)
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{}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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bool Foam::streamLineParticle::move(streamLineParticle::trackData& td)
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{
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td.switchProcessor = false;
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td.keepParticle = true;
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// Set very large dt. Note: cannot use GREAT since 1/GREAT is SMALL
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// which is a trigger value for the tracking...
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scalar deltaT = Foam::sqrt(GREAT); //cloud().pMesh().time().deltaTValue();
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scalar tEnd = (1.0 - stepFraction())*deltaT;
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scalar dtMax = tEnd;
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while
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(
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td.keepParticle
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&& !td.switchProcessor
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&& lifeTime_ > 0
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&& tEnd > ROOTVSMALL
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)
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{
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// TBD: implement subcycling so step through cells in more than
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// one step.
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// set the lagrangian time-step
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scalar dt = min(dtMax, tEnd);
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// Store current position and sampled velocity.
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--lifeTime_;
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sampledPositions_.append(position());
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vector U = interpolateFields(td, position(), cell());
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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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dt *= trackToFace(position()+dt*U, td);
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tEnd -= dt;
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stepFraction() = 1.0 - tEnd/deltaT;
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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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if (debug)
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{
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Pout<< "streamLineParticle : Removing stagnant particle:"
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<< static_cast<Particle<streamLineParticle> >(*this)
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<< " sampled positions:" << sampledPositions_.size()
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<< 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());
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if (debug)
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{
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Pout<< "streamLineParticle : Removing particle:"
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<< static_cast<Particle<streamLineParticle> >(*this)
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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 trackData.
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//td.allPositions_.append(sampledPositions_);
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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(sampledScalars_[i]);
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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(sampledVectors_[i]);
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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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streamLineParticle::trackData& 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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bool Foam::streamLineParticle::hitPatch
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(
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const polyPatch&,
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int&,
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const label,
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const scalar,
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const tetIndices&
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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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streamLineParticle::trackData& 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::hitWedgePatch
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(
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const wedgePolyPatch&,
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int&
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)
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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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streamLineParticle::trackData& 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&,
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int&
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)
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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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streamLineParticle::trackData& 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&,
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int&
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)
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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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streamLineParticle::trackData& 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::hitProcessorPatch
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(
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const processorPolyPatch&,
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int&
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)
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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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streamLineParticle::trackData& 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::hitWallPatch
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(
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const wallPolyPatch& wpp,
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int&,
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const tetIndices&
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)
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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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streamLineParticle::trackData& 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::hitPatch
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(
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const polyPatch& wpp,
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int&
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)
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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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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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// vectorFieldIOField sampleVelocity
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// (
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// c.fieldIOobject("sampleVelocity", IOobject::MUST_READ)
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// );
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// c.checkFieldIOobject(c, sampleVelocity);
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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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// iter().sampleVelocity_.transfer(sampleVelocity[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<streamLineParticle>::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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// vectorFieldIOField sampleVelocity
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// (
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// c.fieldIOobject("sampleVelocity", 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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// sampleVelocity[i] = iter().sampleVelocity_;
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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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// sampleVelocity.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<streamLineParticle>&>(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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// Check state of Ostream
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os.check("Ostream& operator<<(Ostream&, const streamLineParticle&)");
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return os;
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}
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// ************************************************************************* //
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