22f4ad32b1
Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=1938 Because C++ does not support overloading based on the return-type there is a problem defining both const and non-const member functions which are resolved based on the const-ness of the object for which they are called rather than the intent of the programmer declared via the const-ness of the returned type. The issue for the "boundaryField()" member function is that the non-const version increments the event-counter and checks the state of the stored old-time fields in case the returned value is altered whereas the const version has no side-effects and simply returns the reference. If the the non-const function is called within the patch-loop the event-counter may overflow. To resolve this it in necessary to avoid calling the non-const form of "boundaryField()" if the results is not altered and cache the reference outside the patch-loop when mutation of the patch fields is needed. The most straight forward way of resolving this problem is to name the const and non-const forms of the member functions differently e.g. the non-const form could be named: mutableBoundaryField() mutBoundaryField() nonConstBoundaryField() boundaryFieldRef() Given that in C++ a reference is non-const unless specified as const: "T&" vs "const T&" the logical convention would be boundaryFieldRef() boundaryFieldConstRef() and given that the const form which is more commonly used is it could simply be named "boundaryField()" then the logical convention is GeometricBoundaryField& boundaryFieldRef(); inline const GeometricBoundaryField& boundaryField() const; This is also consistent with the new "tmp" class for which non-const access to the stored object is obtained using the ".ref()" member function. This new convention for non-const access to the components of GeometricField will be applied to "dimensionedInternalField()" and "internalField()" in the future, i.e. "dimensionedInternalFieldRef()" and "internalFieldRef()".
998 lines
25 KiB
C
998 lines
25 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) 2011-2016 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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\*---------------------------------------------------------------------------*/
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#include "multiphaseSystem.H"
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#include "alphaContactAngleFvPatchScalarField.H"
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#include "fixedValueFvsPatchFields.H"
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#include "Time.H"
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#include "subCycle.H"
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#include "MULES.H"
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#include "surfaceInterpolate.H"
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#include "fvcGrad.H"
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#include "fvcSnGrad.H"
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#include "fvcDiv.H"
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#include "fvcFlux.H"
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#include "fvcAverage.H"
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// * * * * * * * * * * * * * * * Static Member Data * * * * * * * * * * * * //
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const Foam::scalar Foam::multiphaseSystem::convertToRad =
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Foam::constant::mathematical::pi/180.0;
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// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
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void Foam::multiphaseSystem::calcAlphas()
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{
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scalar level = 0.0;
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alphas_ == 0.0;
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forAllIter(PtrDictionary<phaseModel>, phases_, iter)
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{
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alphas_ += level*iter();
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level += 1.0;
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}
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}
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void Foam::multiphaseSystem::solveAlphas()
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{
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PtrList<surfaceScalarField> alphaPhiCorrs(phases_.size());
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int phasei = 0;
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forAllIter(PtrDictionary<phaseModel>, phases_, iter)
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{
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phaseModel& phase1 = iter();
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volScalarField& alpha1 = phase1;
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phase1.alphaPhi() =
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dimensionedScalar("0", dimensionSet(0, 3, -1, 0, 0), 0);
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alphaPhiCorrs.set
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(
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phasei,
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new surfaceScalarField
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(
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"phi" + alpha1.name() + "Corr",
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fvc::flux
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(
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phi_,
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phase1,
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"div(phi," + alpha1.name() + ')'
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)
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)
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);
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surfaceScalarField& alphaPhiCorr = alphaPhiCorrs[phasei];
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forAllIter(PtrDictionary<phaseModel>, phases_, iter2)
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{
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phaseModel& phase2 = iter2();
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volScalarField& alpha2 = phase2;
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if (&phase2 == &phase1) continue;
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surfaceScalarField phir(phase1.phi() - phase2.phi());
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scalarCoeffSymmTable::const_iterator cAlpha
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(
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cAlphas_.find(interfacePair(phase1, phase2))
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);
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if (cAlpha != cAlphas_.end())
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{
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surfaceScalarField phic
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(
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(mag(phi_) + mag(phir))/mesh_.magSf()
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);
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phir += min(cAlpha()*phic, max(phic))*nHatf(phase1, phase2);
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}
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word phirScheme
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(
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"div(phir," + alpha2.name() + ',' + alpha1.name() + ')'
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);
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alphaPhiCorr += fvc::flux
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(
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-fvc::flux(-phir, phase2, phirScheme),
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phase1,
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phirScheme
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);
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}
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surfaceScalarField::GeometricBoundaryField& alphaPhiCorrBf =
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alphaPhiCorr.boundaryFieldRef();
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// Ensure that the flux at inflow BCs is preserved
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forAll(alphaPhiCorrBf, patchi)
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{
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fvsPatchScalarField& alphaPhiCorrp = alphaPhiCorrBf[patchi];
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if (!alphaPhiCorrp.coupled())
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{
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const scalarField& phi1p = phase1.phi().boundaryField()[patchi];
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const scalarField& alpha1p = alpha1.boundaryField()[patchi];
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forAll(alphaPhiCorrp, facei)
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{
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if (phi1p[facei] < 0)
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{
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alphaPhiCorrp[facei] = alpha1p[facei]*phi1p[facei];
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}
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}
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}
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}
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MULES::limit
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(
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1.0/mesh_.time().deltaT().value(),
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geometricOneField(),
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phase1,
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phi_,
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alphaPhiCorr,
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zeroField(),
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zeroField(),
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1,
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0,
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true
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);
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phasei++;
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}
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MULES::limitSum(alphaPhiCorrs);
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volScalarField sumAlpha
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(
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IOobject
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(
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"sumAlpha",
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mesh_.time().timeName(),
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mesh_
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),
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mesh_,
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dimensionedScalar("sumAlpha", dimless, 0)
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);
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phasei = 0;
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forAllIter(PtrDictionary<phaseModel>, phases_, iter)
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{
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phaseModel& phase1 = iter();
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surfaceScalarField& alphaPhi = alphaPhiCorrs[phasei];
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alphaPhi += upwind<scalar>(mesh_, phi_).flux(phase1);
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MULES::explicitSolve
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(
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geometricOneField(),
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phase1,
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alphaPhi,
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zeroField(),
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zeroField()
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);
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phase1.alphaPhi() += alphaPhi;
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Info<< phase1.name() << " volume fraction, min, max = "
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<< phase1.weightedAverage(mesh_.V()).value()
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<< ' ' << min(phase1).value()
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<< ' ' << max(phase1).value()
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<< endl;
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sumAlpha += phase1;
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phasei++;
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}
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Info<< "Phase-sum volume fraction, min, max = "
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<< sumAlpha.weightedAverage(mesh_.V()).value()
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<< ' ' << min(sumAlpha).value()
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<< ' ' << max(sumAlpha).value()
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<< endl;
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calcAlphas();
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}
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Foam::tmp<Foam::surfaceVectorField> Foam::multiphaseSystem::nHatfv
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(
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const volScalarField& alpha1,
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const volScalarField& alpha2
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) const
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{
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/*
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// Cell gradient of alpha
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volVectorField gradAlpha =
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alpha2*fvc::grad(alpha1) - alpha1*fvc::grad(alpha2);
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// Interpolated face-gradient of alpha
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surfaceVectorField gradAlphaf = fvc::interpolate(gradAlpha);
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*/
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surfaceVectorField gradAlphaf
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(
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fvc::interpolate(alpha2)*fvc::interpolate(fvc::grad(alpha1))
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- fvc::interpolate(alpha1)*fvc::interpolate(fvc::grad(alpha2))
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);
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// Face unit interface normal
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return gradAlphaf/(mag(gradAlphaf) + deltaN_);
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}
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Foam::tmp<Foam::surfaceScalarField> Foam::multiphaseSystem::nHatf
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(
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const volScalarField& alpha1,
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const volScalarField& alpha2
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) const
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{
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// Face unit interface normal flux
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return nHatfv(alpha1, alpha2) & mesh_.Sf();
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}
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// Correction for the boundary condition on the unit normal nHat on
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// walls to produce the correct contact angle.
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// The dynamic contact angle is calculated from the component of the
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// velocity on the direction of the interface, parallel to the wall.
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void Foam::multiphaseSystem::correctContactAngle
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(
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const phaseModel& phase1,
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const phaseModel& phase2,
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surfaceVectorField::GeometricBoundaryField& nHatb
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) const
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{
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const volScalarField::GeometricBoundaryField& gbf
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= phase1.boundaryField();
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const fvBoundaryMesh& boundary = mesh_.boundary();
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forAll(boundary, patchi)
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{
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if (isA<alphaContactAngleFvPatchScalarField>(gbf[patchi]))
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{
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const alphaContactAngleFvPatchScalarField& acap =
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refCast<const alphaContactAngleFvPatchScalarField>(gbf[patchi]);
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vectorField& nHatPatch = nHatb[patchi];
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vectorField AfHatPatch
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(
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mesh_.Sf().boundaryField()[patchi]
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/mesh_.magSf().boundaryField()[patchi]
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);
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alphaContactAngleFvPatchScalarField::thetaPropsTable::
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const_iterator tp =
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acap.thetaProps().find(interfacePair(phase1, phase2));
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if (tp == acap.thetaProps().end())
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{
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FatalErrorInFunction
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<< "Cannot find interface " << interfacePair(phase1, phase2)
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<< "\n in table of theta properties for patch "
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<< acap.patch().name()
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<< exit(FatalError);
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}
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bool matched = (tp.key().first() == phase1.name());
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scalar theta0 = convertToRad*tp().theta0(matched);
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scalarField theta(boundary[patchi].size(), theta0);
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scalar uTheta = tp().uTheta();
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// Calculate the dynamic contact angle if required
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if (uTheta > SMALL)
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{
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scalar thetaA = convertToRad*tp().thetaA(matched);
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scalar thetaR = convertToRad*tp().thetaR(matched);
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// Calculated the component of the velocity parallel to the wall
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vectorField Uwall
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(
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phase1.U().boundaryField()[patchi].patchInternalField()
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- phase1.U().boundaryField()[patchi]
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);
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Uwall -= (AfHatPatch & Uwall)*AfHatPatch;
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// Find the direction of the interface parallel to the wall
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vectorField nWall
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(
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nHatPatch - (AfHatPatch & nHatPatch)*AfHatPatch
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);
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// Normalise nWall
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nWall /= (mag(nWall) + SMALL);
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// Calculate Uwall resolved normal to the interface parallel to
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// the interface
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scalarField uwall(nWall & Uwall);
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theta += (thetaA - thetaR)*tanh(uwall/uTheta);
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}
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// Reset nHatPatch to correspond to the contact angle
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scalarField a12(nHatPatch & AfHatPatch);
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scalarField b1(cos(theta));
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scalarField b2(nHatPatch.size());
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forAll(b2, facei)
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{
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b2[facei] = cos(acos(a12[facei]) - theta[facei]);
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}
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scalarField det(1.0 - a12*a12);
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scalarField a((b1 - a12*b2)/det);
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scalarField b((b2 - a12*b1)/det);
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nHatPatch = a*AfHatPatch + b*nHatPatch;
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nHatPatch /= (mag(nHatPatch) + deltaN_.value());
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}
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}
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}
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Foam::tmp<Foam::volScalarField> Foam::multiphaseSystem::K
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(
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const phaseModel& phase1,
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const phaseModel& phase2
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) const
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{
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tmp<surfaceVectorField> tnHatfv = nHatfv(phase1, phase2);
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correctContactAngle(phase1, phase2, tnHatfv.ref().boundaryFieldRef());
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// Simple expression for curvature
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return -fvc::div(tnHatfv & mesh_.Sf());
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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Foam::multiphaseSystem::multiphaseSystem
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(
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const volVectorField& U,
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const surfaceScalarField& phi
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)
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:
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IOdictionary
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(
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IOobject
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(
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"transportProperties",
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U.time().constant(),
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U.db(),
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IOobject::MUST_READ_IF_MODIFIED,
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IOobject::NO_WRITE
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)
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),
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phases_(lookup("phases"), phaseModel::iNew(U.mesh())),
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mesh_(U.mesh()),
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phi_(phi),
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alphas_
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(
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IOobject
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(
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"alphas",
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mesh_.time().timeName(),
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mesh_,
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IOobject::NO_READ,
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IOobject::AUTO_WRITE
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),
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mesh_,
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dimensionedScalar("alphas", dimless, 0.0)
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),
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sigmas_(lookup("sigmas")),
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dimSigma_(1, 0, -2, 0, 0),
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cAlphas_(lookup("interfaceCompression")),
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Cvms_(lookup("virtualMass")),
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deltaN_
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(
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"deltaN",
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1e-8/pow(average(mesh_.V()), 1.0/3.0)
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)
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{
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calcAlphas();
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alphas_.write();
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interfaceDictTable dragModelsDict(lookup("drag"));
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forAllConstIter(interfaceDictTable, dragModelsDict, iter)
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{
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dragModels_.insert
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(
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iter.key(),
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dragModel::New
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(
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iter(),
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*phases_.lookup(iter.key().first()),
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*phases_.lookup(iter.key().second())
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).ptr()
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);
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}
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forAllConstIter(PtrDictionary<phaseModel>, phases_, iter1)
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{
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const phaseModel& phase1 = iter1();
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forAllConstIter(PtrDictionary<phaseModel>, phases_, iter2)
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{
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const phaseModel& phase2 = iter2();
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if (&phase2 != &phase1)
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{
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scalarCoeffSymmTable::const_iterator sigma
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(
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sigmas_.find(interfacePair(phase1, phase2))
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);
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if (sigma != sigmas_.end())
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{
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scalarCoeffSymmTable::const_iterator cAlpha
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(
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cAlphas_.find(interfacePair(phase1, phase2))
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);
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if (cAlpha == cAlphas_.end())
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{
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WarningInFunction
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<< "Compression coefficient not specified for "
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"phase pair ("
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<< phase1.name() << ' ' << phase2.name()
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<< ") for which a surface tension "
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"coefficient is specified"
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<< endl;
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}
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}
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}
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}
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}
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}
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// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
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Foam::tmp<Foam::volScalarField> Foam::multiphaseSystem::rho() const
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{
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PtrDictionary<phaseModel>::const_iterator iter = phases_.begin();
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tmp<volScalarField> trho = iter()*iter().rho();
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volScalarField& rho = trho.ref();
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for (++iter; iter != phases_.end(); ++iter)
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{
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rho += iter()*iter().rho();
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}
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return trho;
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}
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Foam::tmp<Foam::scalarField>
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Foam::multiphaseSystem::rho(const label patchi) const
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{
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PtrDictionary<phaseModel>::const_iterator iter = phases_.begin();
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tmp<scalarField> trho = iter().boundaryField()[patchi]*iter().rho().value();
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scalarField& rho = trho.ref();
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for (++iter; iter != phases_.end(); ++iter)
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{
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rho += iter().boundaryField()[patchi]*iter().rho().value();
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}
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return trho;
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}
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Foam::tmp<Foam::volScalarField> Foam::multiphaseSystem::nu() const
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{
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PtrDictionary<phaseModel>::const_iterator iter = phases_.begin();
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tmp<volScalarField> tmu = iter()*(iter().rho()*iter().nu());
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volScalarField& mu = tmu.ref();
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for (++iter; iter != phases_.end(); ++iter)
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{
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mu += iter()*(iter().rho()*iter().nu());
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}
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return tmu/rho();
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}
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|
|
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Foam::tmp<Foam::scalarField>
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Foam::multiphaseSystem::nu(const label patchi) const
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{
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PtrDictionary<phaseModel>::const_iterator iter = phases_.begin();
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tmp<scalarField> tmu =
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iter().boundaryField()[patchi]
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*(iter().rho().value()*iter().nu().value());
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scalarField& mu = tmu.ref();
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for (++iter; iter != phases_.end(); ++iter)
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{
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mu +=
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iter().boundaryField()[patchi]
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*(iter().rho().value()*iter().nu().value());
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}
|
|
|
|
return tmu/rho(patchi);
|
|
}
|
|
|
|
|
|
Foam::tmp<Foam::volScalarField> Foam::multiphaseSystem::Cvm
|
|
(
|
|
const phaseModel& phase
|
|
) const
|
|
{
|
|
tmp<volScalarField> tCvm
|
|
(
|
|
new volScalarField
|
|
(
|
|
IOobject
|
|
(
|
|
"Cvm",
|
|
mesh_.time().timeName(),
|
|
mesh_
|
|
),
|
|
mesh_,
|
|
dimensionedScalar
|
|
(
|
|
"Cvm",
|
|
dimensionSet(1, -3, 0, 0, 0),
|
|
0
|
|
)
|
|
)
|
|
);
|
|
|
|
forAllConstIter(PtrDictionary<phaseModel>, phases_, iter)
|
|
{
|
|
const phaseModel& phase2 = iter();
|
|
|
|
if (&phase2 != &phase)
|
|
{
|
|
scalarCoeffTable::const_iterator Cvm
|
|
(
|
|
Cvms_.find(interfacePair(phase, phase2))
|
|
);
|
|
|
|
if (Cvm != Cvms_.end())
|
|
{
|
|
tCvm.ref() += Cvm()*phase2.rho()*phase2;
|
|
}
|
|
else
|
|
{
|
|
Cvm = Cvms_.find(interfacePair(phase2, phase));
|
|
|
|
if (Cvm != Cvms_.end())
|
|
{
|
|
tCvm.ref() += Cvm()*phase.rho()*phase2;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return tCvm;
|
|
}
|
|
|
|
|
|
Foam::tmp<Foam::volVectorField> Foam::multiphaseSystem::Svm
|
|
(
|
|
const phaseModel& phase
|
|
) const
|
|
{
|
|
tmp<volVectorField> tSvm
|
|
(
|
|
new volVectorField
|
|
(
|
|
IOobject
|
|
(
|
|
"Svm",
|
|
mesh_.time().timeName(),
|
|
mesh_
|
|
),
|
|
mesh_,
|
|
dimensionedVector
|
|
(
|
|
"Svm",
|
|
dimensionSet(1, -2, -2, 0, 0),
|
|
Zero
|
|
)
|
|
)
|
|
);
|
|
|
|
forAllConstIter(PtrDictionary<phaseModel>, phases_, iter)
|
|
{
|
|
const phaseModel& phase2 = iter();
|
|
|
|
if (&phase2 != &phase)
|
|
{
|
|
scalarCoeffTable::const_iterator Cvm
|
|
(
|
|
Cvms_.find(interfacePair(phase, phase2))
|
|
);
|
|
|
|
if (Cvm != Cvms_.end())
|
|
{
|
|
tSvm.ref() += Cvm()*phase2.rho()*phase2*phase2.DDtU();
|
|
}
|
|
else
|
|
{
|
|
Cvm = Cvms_.find(interfacePair(phase2, phase));
|
|
|
|
if (Cvm != Cvms_.end())
|
|
{
|
|
tSvm.ref() += Cvm()*phase.rho()*phase2*phase2.DDtU();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
volVectorField::GeometricBoundaryField& SvmBf =
|
|
tSvm.ref().boundaryFieldRef();
|
|
|
|
// Remove virtual mass at fixed-flux boundaries
|
|
forAll(phase.phi().boundaryField(), patchi)
|
|
{
|
|
if
|
|
(
|
|
isA<fixedValueFvsPatchScalarField>
|
|
(
|
|
phase.phi().boundaryField()[patchi]
|
|
)
|
|
)
|
|
{
|
|
SvmBf[patchi] = Zero;
|
|
}
|
|
}
|
|
|
|
return tSvm;
|
|
}
|
|
|
|
|
|
Foam::autoPtr<Foam::multiphaseSystem::dragCoeffFields>
|
|
Foam::multiphaseSystem::dragCoeffs() const
|
|
{
|
|
autoPtr<dragCoeffFields> dragCoeffsPtr(new dragCoeffFields);
|
|
|
|
forAllConstIter(dragModelTable, dragModels_, iter)
|
|
{
|
|
const dragModel& dm = *iter();
|
|
|
|
volScalarField* Kptr =
|
|
(
|
|
max
|
|
(
|
|
//fvc::average(dm.phase1()*dm.phase2()),
|
|
//fvc::average(dm.phase1())*fvc::average(dm.phase2()),
|
|
dm.phase1()*dm.phase2(),
|
|
dm.residualPhaseFraction()
|
|
)
|
|
*dm.K
|
|
(
|
|
max
|
|
(
|
|
mag(dm.phase1().U() - dm.phase2().U()),
|
|
dm.residualSlip()
|
|
)
|
|
)
|
|
).ptr();
|
|
|
|
volScalarField::GeometricBoundaryField& Kbf = Kptr->boundaryFieldRef();
|
|
|
|
// Remove drag at fixed-flux boundaries
|
|
forAll(dm.phase1().phi().boundaryField(), patchi)
|
|
{
|
|
if
|
|
(
|
|
isA<fixedValueFvsPatchScalarField>
|
|
(
|
|
dm.phase1().phi().boundaryField()[patchi]
|
|
)
|
|
)
|
|
{
|
|
Kbf[patchi] = 0.0;
|
|
}
|
|
}
|
|
|
|
dragCoeffsPtr().insert(iter.key(), Kptr);
|
|
}
|
|
|
|
return dragCoeffsPtr;
|
|
}
|
|
|
|
|
|
Foam::tmp<Foam::volScalarField> Foam::multiphaseSystem::dragCoeff
|
|
(
|
|
const phaseModel& phase,
|
|
const dragCoeffFields& dragCoeffs
|
|
) const
|
|
{
|
|
tmp<volScalarField> tdragCoeff
|
|
(
|
|
new volScalarField
|
|
(
|
|
IOobject
|
|
(
|
|
"dragCoeff",
|
|
mesh_.time().timeName(),
|
|
mesh_
|
|
),
|
|
mesh_,
|
|
dimensionedScalar
|
|
(
|
|
"dragCoeff",
|
|
dimensionSet(1, -3, -1, 0, 0),
|
|
0
|
|
)
|
|
)
|
|
);
|
|
|
|
dragModelTable::const_iterator dmIter = dragModels_.begin();
|
|
dragCoeffFields::const_iterator dcIter = dragCoeffs.begin();
|
|
for
|
|
(
|
|
;
|
|
dmIter != dragModels_.end() && dcIter != dragCoeffs.end();
|
|
++dmIter, ++dcIter
|
|
)
|
|
{
|
|
if
|
|
(
|
|
&phase == &dmIter()->phase1()
|
|
|| &phase == &dmIter()->phase2()
|
|
)
|
|
{
|
|
tdragCoeff.ref() += *dcIter();
|
|
}
|
|
}
|
|
|
|
return tdragCoeff;
|
|
}
|
|
|
|
|
|
Foam::tmp<Foam::surfaceScalarField> Foam::multiphaseSystem::surfaceTension
|
|
(
|
|
const phaseModel& phase1
|
|
) const
|
|
{
|
|
tmp<surfaceScalarField> tSurfaceTension
|
|
(
|
|
new surfaceScalarField
|
|
(
|
|
IOobject
|
|
(
|
|
"surfaceTension",
|
|
mesh_.time().timeName(),
|
|
mesh_
|
|
),
|
|
mesh_,
|
|
dimensionedScalar
|
|
(
|
|
"surfaceTension",
|
|
dimensionSet(1, -2, -2, 0, 0),
|
|
0
|
|
)
|
|
)
|
|
);
|
|
|
|
forAllConstIter(PtrDictionary<phaseModel>, phases_, iter)
|
|
{
|
|
const phaseModel& phase2 = iter();
|
|
|
|
if (&phase2 != &phase1)
|
|
{
|
|
scalarCoeffSymmTable::const_iterator sigma
|
|
(
|
|
sigmas_.find(interfacePair(phase1, phase2))
|
|
);
|
|
|
|
if (sigma != sigmas_.end())
|
|
{
|
|
tSurfaceTension.ref() +=
|
|
dimensionedScalar("sigma", dimSigma_, sigma())
|
|
*fvc::interpolate(K(phase1, phase2))*
|
|
(
|
|
fvc::interpolate(phase2)*fvc::snGrad(phase1)
|
|
- fvc::interpolate(phase1)*fvc::snGrad(phase2)
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
return tSurfaceTension;
|
|
}
|
|
|
|
|
|
Foam::tmp<Foam::volScalarField>
|
|
Foam::multiphaseSystem::nearInterface() const
|
|
{
|
|
tmp<volScalarField> tnearInt
|
|
(
|
|
new volScalarField
|
|
(
|
|
IOobject
|
|
(
|
|
"nearInterface",
|
|
mesh_.time().timeName(),
|
|
mesh_
|
|
),
|
|
mesh_,
|
|
dimensionedScalar("nearInterface", dimless, 0.0)
|
|
)
|
|
);
|
|
|
|
forAllConstIter(PtrDictionary<phaseModel>, phases_, iter)
|
|
{
|
|
tnearInt.ref() = max(tnearInt(), pos(iter() - 0.01)*pos(0.99 - iter()));
|
|
}
|
|
|
|
return tnearInt;
|
|
}
|
|
|
|
|
|
void Foam::multiphaseSystem::solve()
|
|
{
|
|
forAllIter(PtrDictionary<phaseModel>, phases_, iter)
|
|
{
|
|
iter().correct();
|
|
}
|
|
|
|
const Time& runTime = mesh_.time();
|
|
|
|
const dictionary& alphaControls = mesh_.solverDict("alpha");
|
|
label nAlphaSubCycles(readLabel(alphaControls.lookup("nAlphaSubCycles")));
|
|
|
|
if (nAlphaSubCycles > 1)
|
|
{
|
|
dimensionedScalar totalDeltaT = runTime.deltaT();
|
|
|
|
PtrList<volScalarField> alpha0s(phases_.size());
|
|
PtrList<surfaceScalarField> alphaPhiSums(phases_.size());
|
|
|
|
int phasei = 0;
|
|
forAllIter(PtrDictionary<phaseModel>, phases_, iter)
|
|
{
|
|
phaseModel& phase = iter();
|
|
volScalarField& alpha = phase;
|
|
|
|
alpha0s.set
|
|
(
|
|
phasei,
|
|
new volScalarField(alpha.oldTime())
|
|
);
|
|
|
|
alphaPhiSums.set
|
|
(
|
|
phasei,
|
|
new surfaceScalarField
|
|
(
|
|
IOobject
|
|
(
|
|
"phiSum" + alpha.name(),
|
|
runTime.timeName(),
|
|
mesh_
|
|
),
|
|
mesh_,
|
|
dimensionedScalar("0", dimensionSet(0, 3, -1, 0, 0), 0)
|
|
)
|
|
);
|
|
|
|
phasei++;
|
|
}
|
|
|
|
for
|
|
(
|
|
subCycleTime alphaSubCycle
|
|
(
|
|
const_cast<Time&>(runTime),
|
|
nAlphaSubCycles
|
|
);
|
|
!(++alphaSubCycle).end();
|
|
)
|
|
{
|
|
solveAlphas();
|
|
|
|
int phasei = 0;
|
|
forAllIter(PtrDictionary<phaseModel>, phases_, iter)
|
|
{
|
|
alphaPhiSums[phasei] += iter().alphaPhi()/nAlphaSubCycles;
|
|
phasei++;
|
|
}
|
|
}
|
|
|
|
phasei = 0;
|
|
forAllIter(PtrDictionary<phaseModel>, phases_, iter)
|
|
{
|
|
phaseModel& phase = iter();
|
|
volScalarField& alpha = phase;
|
|
|
|
phase.alphaPhi() = alphaPhiSums[phasei];
|
|
|
|
// Correct the time index of the field
|
|
// to correspond to the global time
|
|
alpha.timeIndex() = runTime.timeIndex();
|
|
|
|
// Reset the old-time field value
|
|
alpha.oldTime() = alpha0s[phasei];
|
|
alpha.oldTime().timeIndex() = runTime.timeIndex();
|
|
|
|
phasei++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
solveAlphas();
|
|
}
|
|
}
|
|
|
|
|
|
bool Foam::multiphaseSystem::read()
|
|
{
|
|
if (regIOobject::read())
|
|
{
|
|
bool readOK = true;
|
|
|
|
PtrList<entry> phaseData(lookup("phases"));
|
|
label phasei = 0;
|
|
|
|
forAllIter(PtrDictionary<phaseModel>, phases_, iter)
|
|
{
|
|
readOK &= iter().read(phaseData[phasei++].dict());
|
|
}
|
|
|
|
lookup("sigmas") >> sigmas_;
|
|
lookup("interfaceCompression") >> cAlphas_;
|
|
lookup("virtualMass") >> Cvms_;
|
|
|
|
return readOK;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
// ************************************************************************* //
|