incompressibleTwoPhaseMixture -> incompressibleTwoPhaseVoFMixture, compressibleTwoPhaseMixture -> compressibleTwoPhaseVoFMixture
to distinguish between mixtures specifically for VoF simulations
This commit is contained in:
Henry Weller
@ -1,256 +0,0 @@
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration | Website: https://openfoam.org
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\\ / A nd | Copyright (C) 2011-2023 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 "multiphaseMixture.H"
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#include "alphaContactAngleFvPatchScalarField.H"
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#include "correctContactAngle.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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// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
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void Foam::multiphaseMixture::calcAlphas()
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{
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scalar level = 0.0;
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alphas_ == 0.0;
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forAll(phases_, phasei)
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{
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alphas_ += level*phases_[phasei];
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level += 1.0;
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}
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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Foam::multiphaseMixture::multiphaseMixture(const fvMesh& mesh)
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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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"phaseProperties",
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mesh.time().constant(),
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mesh,
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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_(PtrListDictionary<phase>(10)),
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// phases_(lookup("phases"), phase::iNew(mesh)),
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mesh_(mesh),
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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().name(),
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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(dimless, 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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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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}
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// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
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Foam::tmp<Foam::surfaceScalarField>
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Foam::multiphaseMixture::surfaceTensionForce(const volVectorField& U) const
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{
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tmp<surfaceScalarField> tstf
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(
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surfaceScalarField::New
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(
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"surfaceTensionForce",
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mesh_,
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dimensionedScalar(dimensionSet(1, -2, -2, 0, 0), 0)
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)
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);
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surfaceScalarField& stf = tstf.ref();
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forAll(phases_, phasei)
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{
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const incompressiblePhase& alpha1 = phases_[phasei];
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for (label phasej = phasei+1; phasej<phases_.size(); phasej++)
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{
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const incompressiblePhase& alpha2 = phases_[phasej];
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sigmaTable::const_iterator sigma =
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sigmas_.find(interfacePair(alpha1, alpha2));
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if (sigma == sigmas_.end())
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{
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FatalErrorInFunction
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<< "Cannot find interface " << interfacePair(alpha1, alpha2)
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<< " in list of sigma values"
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<< exit(FatalError);
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}
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stf += dimensionedScalar(dimSigma_, sigma())
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*fvc::interpolate(K(alpha1, alpha2))*
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(
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fvc::interpolate(alpha2)*fvc::snGrad(alpha1)
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- fvc::interpolate(alpha1)*fvc::snGrad(alpha2)
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);
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}
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}
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return tstf;
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}
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void Foam::multiphaseMixture::correct()
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{
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forAll(phases_, phasei)
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{
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// iter()->correct();
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}
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}
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Foam::tmp<Foam::surfaceVectorField> Foam::multiphaseMixture::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::multiphaseMixture::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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Foam::tmp<Foam::volScalarField> Foam::multiphaseMixture::K
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(
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const phase& alpha1,
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const phase& alpha2,
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const volVectorField& U
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) const
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{
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tmp<surfaceVectorField> tnHatfv = nHatfv(alpha1, alpha2);
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correctContactAngle
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(
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alpha1,
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alpha2,
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U.boundaryField(),
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deltaN_,
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tnHatfv.ref().boundaryFieldRef()
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);
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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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Foam::tmp<Foam::volScalarField>
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Foam::multiphaseMixture::nearInterface() const
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{
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tmp<volScalarField> tnearInt
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(
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volScalarField::New
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(
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"nearInterface",
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mesh_,
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dimensionedScalar(dimless, 0)
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)
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);
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forAll(phases_, phasei)
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{
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tnearInt.ref() = max
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(
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tnearInt(),
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pos0(phases_[phasei] - 0.01)*pos0(0.99 - phases_[phasei])
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);
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}
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return tnearInt;
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}
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bool Foam::multiphaseMixture::read()
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{
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if (regIOobject::read())
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{
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lookup("sigmas") >> sigmas_;
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return true;
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}
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else
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{
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return false;
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}
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}
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// ************************************************************************* //
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@ -1,222 +0,0 @@
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/*---------------------------------------------------------------------------*\
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========= |
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||||
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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||||
\\ / O peration | Website: https://openfoam.org
|
||||
\\ / A nd | Copyright (C) 2011-2023 OpenFOAM Foundation
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\\/ M anipulation |
|
||||
-------------------------------------------------------------------------------
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||||
License
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||||
This file is part of OpenFOAM.
|
||||
|
||||
OpenFOAM is free software: you can redistribute it and/or modify it
|
||||
under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
|
||||
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||||
for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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||||
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||||
Class
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Foam::multiphaseMixture
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Description
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Incompressible multiphase mixture with built in solution for the
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phase fractions with interface compression for interface-capturing.
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Derived from viscosity so that it can be used in conjunction
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with the incompressible turbulence models.
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Surface tension and contact-angle is handled for the interface
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between each phase-pair.
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SourceFiles
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multiphaseMixture.C
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\*---------------------------------------------------------------------------*/
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#ifndef multiphaseMixture_H
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#define multiphaseMixture_H
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#include "viscosity.H"
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#include "IOdictionary.H"
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#include "phase.H"
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#include "UPtrListDictionary.H"
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#include "volFields.H"
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#include "surfaceFields.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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/*---------------------------------------------------------------------------*\
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Class multiphaseMixture Declaration
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\*---------------------------------------------------------------------------*/
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class multiphaseMixture
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:
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public IOdictionary
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{
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public:
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class interfacePair
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:
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public Pair<word>
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{
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public:
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class hash
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:
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public Hash<interfacePair>
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{
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public:
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hash()
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{}
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label operator()(const interfacePair& key) const
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{
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return word::hash()(key.first()) + word::hash()(key.second());
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}
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};
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// Constructors
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interfacePair()
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{}
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interfacePair(const word& alpha1Name, const word& alpha2Name)
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:
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Pair<word>(alpha1Name, alpha2Name)
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{}
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interfacePair(const phase& alpha1, const phase& alpha2)
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:
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Pair<word>(alpha1.name(), alpha2.name())
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{}
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// Friend Operators
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friend bool operator==
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(
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const interfacePair& a,
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const interfacePair& b
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)
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{
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return
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(
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((a.first() == b.first()) && (a.second() == b.second()))
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|| ((a.first() == b.second()) && (a.second() == b.first()))
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);
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}
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friend bool operator!=
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(
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const interfacePair& a,
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const interfacePair& b
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)
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{
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return (!(a == b));
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}
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};
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private:
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// Private Data
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//- Dictionary of phases
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UPtrListDictionary<phase> phases_;
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const fvMesh& mesh_;
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volScalarField alphas_;
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typedef HashTable<scalar, interfacePair, interfacePair::hash>
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sigmaTable;
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sigmaTable sigmas_;
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dimensionSet dimSigma_;
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//- Stabilisation for normalisation of the interface normal
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const dimensionedScalar deltaN_;
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// Private Member Functions
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void calcAlphas();
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tmp<surfaceVectorField> 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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tmp<surfaceScalarField> 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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tmp<volScalarField> K
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(
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const phase& alpha1,
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const phase& alpha2,
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const volVectorField& U
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) const;
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public:
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// Constructors
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//- Construct from fvMesh
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multiphaseMixture(const fvMesh& mesh);
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//- Destructor
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virtual ~multiphaseMixture()
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{}
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// Member Functions
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//- Return the phases
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const UPtrListDictionary<phase>& phases() const
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{
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return phases_;
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}
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tmp<surfaceScalarField> surfaceTensionForce
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(
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const volVectorField& U
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) const;
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//- Indicator of the proximity of the interface
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// Field values are 1 near and 0 away for the interface.
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tmp<volScalarField> nearInterface() const;
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//- Correct the mixture properties
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void correct();
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//- Read base phaseProperties dictionary
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bool read();
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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Reference in New Issue
Block a user