2ac4a4e84c
LTS is selected by the ddt scheme e.g. in the
tutorials/multiphase/interFoam/ras/DTCHull case:
ddtSchemes
{
default localEuler rDeltaT;
}
LTSInterFoam is no longer needed now that interFoam includes LTS
support.
632 lines
16 KiB
C
632 lines
16 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) 2011-2015 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 "MULES.H"
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#include "upwind.H"
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#include "fvcSurfaceIntegrate.H"
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#include "localEulerDdtScheme.H"
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#include "slicedSurfaceFields.H"
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#include "wedgeFvPatch.H"
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#include "syncTools.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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template<class RdeltaTType, class RhoType, class SpType, class SuType>
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void Foam::MULES::explicitSolve
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(
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const RdeltaTType& rDeltaT,
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const RhoType& rho,
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volScalarField& psi,
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const surfaceScalarField& phiPsi,
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const SpType& Sp,
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const SuType& Su
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)
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{
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Info<< "MULES: Solving for " << psi.name() << endl;
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const fvMesh& mesh = psi.mesh();
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scalarField& psiIf = psi;
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const scalarField& psi0 = psi.oldTime();
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psiIf = 0.0;
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fvc::surfaceIntegrate(psiIf, phiPsi);
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if (mesh.moving())
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{
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psiIf =
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(
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mesh.Vsc0()().field()*rho.oldTime().field()
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*psi0*rDeltaT/mesh.Vsc()().field()
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+ Su.field()
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- psiIf
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)/(rho.field()*rDeltaT - Sp.field());
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}
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else
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{
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psiIf =
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(
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rho.oldTime().field()*psi0*rDeltaT
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+ Su.field()
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- psiIf
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)/(rho.field()*rDeltaT - Sp.field());
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}
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psi.correctBoundaryConditions();
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}
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template<class RhoType, class SpType, class SuType>
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void Foam::MULES::explicitSolve
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(
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const RhoType& rho,
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volScalarField& psi,
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const surfaceScalarField& phiPsi,
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const SpType& Sp,
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const SuType& Su
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)
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{
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const fvMesh& mesh = psi.mesh();
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const scalar rDeltaT = 1.0/mesh.time().deltaTValue();
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explicitSolve(rDeltaT, rho, psi, phiPsi, Sp, Su);
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}
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template<class RhoType, class SpType, class SuType>
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void Foam::MULES::explicitSolve
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(
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const RhoType& rho,
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volScalarField& psi,
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const surfaceScalarField& phi,
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surfaceScalarField& phiPsi,
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const SpType& Sp,
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const SuType& Su,
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const scalar psiMax,
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const scalar psiMin
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)
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{
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const fvMesh& mesh = psi.mesh();
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psi.correctBoundaryConditions();
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bool LTS =
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word(mesh.ddtScheme("default"))
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== fv::localEulerDdtScheme<scalar>::typeName;
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if (LTS)
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{
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const volScalarField& rDeltaT =
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mesh.objectRegistry::lookupObject<volScalarField>("rSubDeltaT");
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limit
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(
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rDeltaT,
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rho,
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psi,
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phi,
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phiPsi,
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Sp,
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Su,
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psiMax,
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psiMin,
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false
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);
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explicitSolve(rDeltaT, rho, psi, phiPsi, Sp, Su);
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}
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else
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{
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const scalar rDeltaT = 1.0/mesh.time().deltaTValue();
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limit
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(
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rDeltaT,
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rho,
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psi,
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phi,
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phiPsi,
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Sp,
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Su,
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psiMax,
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psiMin,
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false
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);
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explicitSolve(rDeltaT, rho, psi, phiPsi, Sp, Su);
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}
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}
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template<class RdeltaTType, class RhoType, class SpType, class SuType>
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void Foam::MULES::limiter
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(
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scalarField& allLambda,
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const RdeltaTType& rDeltaT,
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const RhoType& rho,
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const volScalarField& psi,
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const surfaceScalarField& phiBD,
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const surfaceScalarField& phiCorr,
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const SpType& Sp,
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const SuType& Su,
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const scalar psiMax,
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const scalar psiMin
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)
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{
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const scalarField& psiIf = psi;
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const volScalarField::GeometricBoundaryField& psiBf = psi.boundaryField();
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const fvMesh& mesh = psi.mesh();
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const dictionary& MULEScontrols = mesh.solverDict(psi.name());
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label nLimiterIter
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(
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MULEScontrols.lookupOrDefault<label>("nLimiterIter", 3)
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);
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scalar smoothLimiter
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(
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MULEScontrols.lookupOrDefault<scalar>("smoothLimiter", 0)
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);
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const scalarField& psi0 = psi.oldTime();
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const labelUList& owner = mesh.owner();
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const labelUList& neighb = mesh.neighbour();
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tmp<volScalarField::DimensionedInternalField> tVsc = mesh.Vsc();
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const scalarField& V = tVsc();
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const scalarField& phiBDIf = phiBD;
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const surfaceScalarField::GeometricBoundaryField& phiBDBf =
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phiBD.boundaryField();
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const scalarField& phiCorrIf = phiCorr;
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const surfaceScalarField::GeometricBoundaryField& phiCorrBf =
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phiCorr.boundaryField();
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slicedSurfaceScalarField lambda
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(
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IOobject
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(
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"lambda",
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mesh.time().timeName(),
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mesh,
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IOobject::NO_READ,
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IOobject::NO_WRITE,
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false
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),
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mesh,
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dimless,
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allLambda,
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false // Use slices for the couples
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);
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scalarField& lambdaIf = lambda;
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surfaceScalarField::GeometricBoundaryField& lambdaBf =
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lambda.boundaryField();
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scalarField psiMaxn(psiIf.size(), psiMin);
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scalarField psiMinn(psiIf.size(), psiMax);
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scalarField sumPhiBD(psiIf.size(), 0.0);
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scalarField sumPhip(psiIf.size(), VSMALL);
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scalarField mSumPhim(psiIf.size(), VSMALL);
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forAll(phiCorrIf, facei)
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{
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label own = owner[facei];
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label nei = neighb[facei];
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psiMaxn[own] = max(psiMaxn[own], psiIf[nei]);
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psiMinn[own] = min(psiMinn[own], psiIf[nei]);
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psiMaxn[nei] = max(psiMaxn[nei], psiIf[own]);
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psiMinn[nei] = min(psiMinn[nei], psiIf[own]);
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sumPhiBD[own] += phiBDIf[facei];
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sumPhiBD[nei] -= phiBDIf[facei];
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scalar phiCorrf = phiCorrIf[facei];
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if (phiCorrf > 0.0)
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{
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sumPhip[own] += phiCorrf;
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mSumPhim[nei] += phiCorrf;
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}
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else
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{
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mSumPhim[own] -= phiCorrf;
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sumPhip[nei] -= phiCorrf;
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}
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}
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forAll(phiCorrBf, patchi)
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{
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const fvPatchScalarField& psiPf = psiBf[patchi];
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const scalarField& phiBDPf = phiBDBf[patchi];
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const scalarField& phiCorrPf = phiCorrBf[patchi];
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const labelList& pFaceCells = mesh.boundary()[patchi].faceCells();
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if (psiPf.coupled())
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{
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const scalarField psiPNf(psiPf.patchNeighbourField());
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forAll(phiCorrPf, pFacei)
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{
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label pfCelli = pFaceCells[pFacei];
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psiMaxn[pfCelli] = max(psiMaxn[pfCelli], psiPNf[pFacei]);
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psiMinn[pfCelli] = min(psiMinn[pfCelli], psiPNf[pFacei]);
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}
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}
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else
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{
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forAll(phiCorrPf, pFacei)
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{
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label pfCelli = pFaceCells[pFacei];
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psiMaxn[pfCelli] = max(psiMaxn[pfCelli], psiPf[pFacei]);
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psiMinn[pfCelli] = min(psiMinn[pfCelli], psiPf[pFacei]);
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}
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}
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forAll(phiCorrPf, pFacei)
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{
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label pfCelli = pFaceCells[pFacei];
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sumPhiBD[pfCelli] += phiBDPf[pFacei];
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scalar phiCorrf = phiCorrPf[pFacei];
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if (phiCorrf > 0.0)
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{
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sumPhip[pfCelli] += phiCorrf;
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}
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else
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{
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mSumPhim[pfCelli] -= phiCorrf;
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}
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}
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}
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psiMaxn = min(psiMaxn, psiMax);
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psiMinn = max(psiMinn, psiMin);
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if (smoothLimiter > SMALL)
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{
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psiMaxn =
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min(smoothLimiter*psiIf + (1.0 - smoothLimiter)*psiMaxn, psiMax);
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psiMinn =
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max(smoothLimiter*psiIf + (1.0 - smoothLimiter)*psiMinn, psiMin);
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}
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if (mesh.moving())
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{
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tmp<volScalarField::DimensionedInternalField> V0 = mesh.Vsc0();
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psiMaxn =
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V
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*(
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(rho.field()*rDeltaT - Sp.field())*psiMaxn
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- Su.field()
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)
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- (V0().field()*rDeltaT)*rho.oldTime().field()*psi0
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+ sumPhiBD;
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psiMinn =
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V
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*(
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Su.field()
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- (rho.field()*rDeltaT - Sp.field())*psiMinn
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)
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+ (V0().field()*rDeltaT)*rho.oldTime().field()*psi0
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- sumPhiBD;
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}
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else
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{
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psiMaxn =
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V
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*(
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(rho.field()*rDeltaT - Sp.field())*psiMaxn
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- Su.field()
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- (rho.oldTime().field()*rDeltaT)*psi0
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)
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+ sumPhiBD;
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psiMinn =
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V
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*(
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Su.field()
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- (rho.field()*rDeltaT - Sp.field())*psiMinn
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+ (rho.oldTime().field()*rDeltaT)*psi0
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)
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- sumPhiBD;
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}
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scalarField sumlPhip(psiIf.size());
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scalarField mSumlPhim(psiIf.size());
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for (int j=0; j<nLimiterIter; j++)
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{
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sumlPhip = 0.0;
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mSumlPhim = 0.0;
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forAll(lambdaIf, facei)
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{
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label own = owner[facei];
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label nei = neighb[facei];
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scalar lambdaPhiCorrf = lambdaIf[facei]*phiCorrIf[facei];
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if (lambdaPhiCorrf > 0.0)
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{
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sumlPhip[own] += lambdaPhiCorrf;
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mSumlPhim[nei] += lambdaPhiCorrf;
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}
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else
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{
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mSumlPhim[own] -= lambdaPhiCorrf;
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sumlPhip[nei] -= lambdaPhiCorrf;
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}
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}
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forAll(lambdaBf, patchi)
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{
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scalarField& lambdaPf = lambdaBf[patchi];
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const scalarField& phiCorrfPf = phiCorrBf[patchi];
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const labelList& pFaceCells = mesh.boundary()[patchi].faceCells();
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forAll(lambdaPf, pFacei)
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{
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label pfCelli = pFaceCells[pFacei];
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scalar lambdaPhiCorrf = lambdaPf[pFacei]*phiCorrfPf[pFacei];
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if (lambdaPhiCorrf > 0.0)
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{
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sumlPhip[pfCelli] += lambdaPhiCorrf;
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}
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else
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{
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mSumlPhim[pfCelli] -= lambdaPhiCorrf;
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}
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}
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}
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forAll(sumlPhip, celli)
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{
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sumlPhip[celli] =
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max(min
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(
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(sumlPhip[celli] + psiMaxn[celli])
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/(mSumPhim[celli] - SMALL),
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1.0), 0.0
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);
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mSumlPhim[celli] =
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max(min
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(
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(mSumlPhim[celli] + psiMinn[celli])
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/(sumPhip[celli] + SMALL),
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1.0), 0.0
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);
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}
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const scalarField& lambdam = sumlPhip;
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const scalarField& lambdap = mSumlPhim;
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forAll(lambdaIf, facei)
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{
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if (phiCorrIf[facei] > 0.0)
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{
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lambdaIf[facei] = min
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(
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lambdaIf[facei],
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min(lambdap[owner[facei]], lambdam[neighb[facei]])
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);
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}
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else
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{
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lambdaIf[facei] = min
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(
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lambdaIf[facei],
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min(lambdam[owner[facei]], lambdap[neighb[facei]])
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);
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}
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}
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|
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forAll(lambdaBf, patchi)
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{
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fvsPatchScalarField& lambdaPf = lambdaBf[patchi];
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const scalarField& phiCorrfPf = phiCorrBf[patchi];
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const fvPatchScalarField& psiPf = psiBf[patchi];
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|
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if (isA<wedgeFvPatch>(mesh.boundary()[patchi]))
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{
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lambdaPf = 0;
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}
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else if (psiPf.coupled())
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{
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const labelList& pFaceCells =
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mesh.boundary()[patchi].faceCells();
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|
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forAll(lambdaPf, pFacei)
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{
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label pfCelli = pFaceCells[pFacei];
|
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if (phiCorrfPf[pFacei] > 0.0)
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{
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lambdaPf[pFacei] =
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min(lambdaPf[pFacei], lambdap[pfCelli]);
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}
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else
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{
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lambdaPf[pFacei] =
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min(lambdaPf[pFacei], lambdam[pfCelli]);
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}
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}
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}
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else
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{
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const labelList& pFaceCells =
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mesh.boundary()[patchi].faceCells();
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const scalarField& phiBDPf = phiBDBf[patchi];
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const scalarField& phiCorrPf = phiCorrBf[patchi];
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|
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forAll(lambdaPf, pFacei)
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{
|
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// Limit outlet faces only
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if ((phiBDPf[pFacei] + phiCorrPf[pFacei]) > SMALL*SMALL)
|
|
{
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label pfCelli = pFaceCells[pFacei];
|
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|
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if (phiCorrfPf[pFacei] > 0.0)
|
|
{
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lambdaPf[pFacei] =
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min(lambdaPf[pFacei], lambdap[pfCelli]);
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|
}
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|
else
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|
{
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|
lambdaPf[pFacei] =
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min(lambdaPf[pFacei], lambdam[pfCelli]);
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|
}
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|
}
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|
}
|
|
}
|
|
}
|
|
|
|
syncTools::syncFaceList(mesh, allLambda, minEqOp<scalar>());
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|
}
|
|
}
|
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|
|
|
|
template<class RdeltaTType, class RhoType, class SpType, class SuType>
|
|
void Foam::MULES::limit
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|
(
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|
const RdeltaTType& rDeltaT,
|
|
const RhoType& rho,
|
|
const volScalarField& psi,
|
|
const surfaceScalarField& phi,
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|
surfaceScalarField& phiPsi,
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|
const SpType& Sp,
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|
const SuType& Su,
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|
const scalar psiMax,
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|
const scalar psiMin,
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|
const bool returnCorr
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)
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|
{
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|
const fvMesh& mesh = psi.mesh();
|
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|
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surfaceScalarField phiBD(upwind<scalar>(psi.mesh(), phi).flux(psi));
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surfaceScalarField& phiCorr = phiPsi;
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phiCorr -= phiBD;
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scalarField allLambda(mesh.nFaces(), 1.0);
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|
|
slicedSurfaceScalarField lambda
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|
(
|
|
IOobject
|
|
(
|
|
"lambda",
|
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mesh.time().timeName(),
|
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mesh,
|
|
IOobject::NO_READ,
|
|
IOobject::NO_WRITE,
|
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false
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),
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|
mesh,
|
|
dimless,
|
|
allLambda,
|
|
false // Use slices for the couples
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);
|
|
|
|
limiter
|
|
(
|
|
allLambda,
|
|
rDeltaT,
|
|
rho,
|
|
psi,
|
|
phiBD,
|
|
phiCorr,
|
|
Sp,
|
|
Su,
|
|
psiMax,
|
|
psiMin
|
|
);
|
|
|
|
if (returnCorr)
|
|
{
|
|
phiCorr *= lambda;
|
|
}
|
|
else
|
|
{
|
|
phiPsi = phiBD + lambda*phiCorr;
|
|
}
|
|
}
|
|
|
|
|
|
template<class SurfaceScalarFieldList>
|
|
void Foam::MULES::limitSum(SurfaceScalarFieldList& phiPsiCorrs)
|
|
{
|
|
{
|
|
UPtrList<scalarField> phiPsiCorrsInternal(phiPsiCorrs.size());
|
|
forAll(phiPsiCorrs, phasei)
|
|
{
|
|
phiPsiCorrsInternal.set(phasei, &phiPsiCorrs[phasei]);
|
|
}
|
|
|
|
limitSum(phiPsiCorrsInternal);
|
|
}
|
|
|
|
surfaceScalarField::GeometricBoundaryField& bfld =
|
|
phiPsiCorrs[0].boundaryField();
|
|
|
|
forAll(bfld, patchi)
|
|
{
|
|
if (bfld[patchi].coupled())
|
|
{
|
|
UPtrList<scalarField> phiPsiCorrsPatch(phiPsiCorrs.size());
|
|
forAll(phiPsiCorrs, phasei)
|
|
{
|
|
phiPsiCorrsPatch.set
|
|
(
|
|
phasei,
|
|
&phiPsiCorrs[phasei].boundaryField()[patchi]
|
|
);
|
|
}
|
|
|
|
limitSum(phiPsiCorrsPatch);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
// ************************************************************************* //
|