fc2b2d0c05
In early versions of OpenFOAM the scalar limits were simple macro replacements and the
names were capitalized to indicate this. The scalar limits are now static
constants which is a huge improvement on the use of macros and for consistency
the names have been changed to camel-case to indicate this and improve
readability of the code:
GREAT -> great
ROOTGREAT -> rootGreat
VGREAT -> vGreat
ROOTVGREAT -> rootVGreat
SMALL -> small
ROOTSMALL -> rootSmall
VSMALL -> vSmall
ROOTVSMALL -> rootVSmall
The original capitalized are still currently supported but their use is
deprecated.
574 lines
15 KiB
C
574 lines
15 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) 2015-2018 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 "InterfaceCompositionPhaseChangePhaseSystem.H"
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#include "interfaceCompositionModel.H"
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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template<class BasePhaseSystem>
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Foam::InterfaceCompositionPhaseChangePhaseSystem<BasePhaseSystem>::
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InterfaceCompositionPhaseChangePhaseSystem
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(
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const fvMesh& mesh
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)
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:
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BasePhaseSystem(mesh)
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{
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this->generatePairsAndSubModels
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(
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"interfaceComposition",
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interfaceCompositionModels_
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);
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forAllConstIter
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(
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phaseSystem::phasePairTable,
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this->phasePairs_,
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phasePairIter
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)
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{
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const phasePair& pair(phasePairIter());
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if (pair.ordered())
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{
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continue;
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}
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// Initially assume no mass transfer
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iDmdt_.insert
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(
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pair,
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new volScalarField
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(
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IOobject
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(
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IOobject::groupName("iDmdt", pair.name()),
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this->mesh().time().timeName(),
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this->mesh(),
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IOobject::READ_IF_PRESENT,
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IOobject::AUTO_WRITE
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),
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this->mesh(),
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dimensionedScalar("zero", dimDensity/dimTime, 0)
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)
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);
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iDmdtExplicit_.insert
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(
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pair,
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new volScalarField
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(
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IOobject
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(
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IOobject::groupName("iDmdtExplicit", pair.name()),
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this->mesh().time().timeName(),
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this->mesh()
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),
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this->mesh(),
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dimensionedScalar("zero", dimDensity/dimTime, 0)
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)
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);
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}
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}
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// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
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template<class BasePhaseSystem>
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Foam::InterfaceCompositionPhaseChangePhaseSystem<BasePhaseSystem>::
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~InterfaceCompositionPhaseChangePhaseSystem()
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{}
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// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
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template<class BasePhaseSystem>
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Foam::tmp<Foam::volScalarField>
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Foam::InterfaceCompositionPhaseChangePhaseSystem<BasePhaseSystem>::iDmdt
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(
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const phasePairKey& key
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) const
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{
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const scalar dmdtSign(Pair<word>::compare(iDmdt_.find(key).key(), key));
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return dmdtSign**iDmdt_[key];
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}
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template<class BasePhaseSystem>
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Foam::tmp<Foam::volScalarField>
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Foam::InterfaceCompositionPhaseChangePhaseSystem<BasePhaseSystem>::iDmdt
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(
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const Foam::phaseModel& phase
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) const
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{
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tmp<volScalarField> tiDmdt
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(
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new volScalarField
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(
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IOobject
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(
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IOobject::groupName("iDmdt", phase.name()),
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this->mesh_.time().timeName(),
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this->mesh_
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),
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this->mesh_,
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dimensionedScalar("zero", dimDensity/dimTime, 0)
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)
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);
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forAllConstIter
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(
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phaseSystem::phasePairTable,
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this->phasePairs_,
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phasePairIter
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)
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{
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const phasePair& pair(phasePairIter());
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if (pair.ordered())
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{
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continue;
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}
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if (pair.contains(phase))
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{
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tiDmdt.ref() += this->iDmdt
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(
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phasePairKey(phase.name(), pair.otherPhase(phase).name(), false)
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);
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}
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}
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return tiDmdt;
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}
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template<class BasePhaseSystem>
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Foam::tmp<Foam::volScalarField>
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Foam::InterfaceCompositionPhaseChangePhaseSystem<BasePhaseSystem>::dmdt
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(
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const Foam::phaseModel& phase
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) const
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{
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tmp<volScalarField> tDmdt
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(
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new volScalarField
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(
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IOobject
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(
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IOobject::groupName("dmdt", phase.name()),
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this->mesh_.time().timeName(),
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this->mesh_
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),
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this->mesh_,
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dimensionedScalar("zero", dimDensity/dimTime, 0)
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)
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);
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forAllConstIter
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(
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phaseSystem::phasePairTable,
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this->phasePairs_,
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phasePairIter
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)
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{
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const phasePair& pair(phasePairIter());
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if (pair.ordered())
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{
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continue;
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}
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if (pair.contains(phase))
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{
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tDmdt.ref() += this->dmdt
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(
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phasePairKey(phase.name(), pair.otherPhase(phase).name(), false)
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);
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}
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}
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return tDmdt;
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}
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template<class BasePhaseSystem>
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Foam::autoPtr<Foam::phaseSystem::momentumTransferTable>
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Foam::InterfaceCompositionPhaseChangePhaseSystem<BasePhaseSystem>::
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momentumTransfer() const
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{
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autoPtr<phaseSystem::momentumTransferTable>
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eqnsPtr(BasePhaseSystem::momentumTransfer());
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phaseSystem::momentumTransferTable& eqns = eqnsPtr();
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// Source term due to mass transfer
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forAllConstIter
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(
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phaseSystem::phasePairTable,
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this->phasePairs_,
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phasePairIter
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)
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{
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const phasePair& pair(phasePairIter());
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if (pair.ordered())
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{
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continue;
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}
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const volVectorField& U1(pair.phase1().U());
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const volVectorField& U2(pair.phase2().U());
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const volScalarField dmdt(this->iDmdt(pair));
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const volScalarField dmdt21(posPart(dmdt));
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const volScalarField dmdt12(negPart(dmdt));
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*eqns[pair.phase1().name()] += dmdt21*U2 - fvm::Sp(dmdt21, U1);
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*eqns[pair.phase2().name()] -= dmdt12*U1 - fvm::Sp(dmdt12, U2);
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}
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return eqnsPtr;
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}
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template<class BasePhaseSystem>
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Foam::autoPtr<Foam::phaseSystem::heatTransferTable>
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Foam::InterfaceCompositionPhaseChangePhaseSystem<BasePhaseSystem>::
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heatTransfer() const
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{
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autoPtr<phaseSystem::heatTransferTable> eqnsPtr =
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BasePhaseSystem::heatTransfer();
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phaseSystem::heatTransferTable& eqns = eqnsPtr();
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// Source term due to mass transfer
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forAllConstIter
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(
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phaseSystem::phasePairTable,
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this->phasePairs_,
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phasePairIter
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)
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{
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if
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(
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this->heatTransferModels_.found(phasePairIter.key())
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)
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{
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const phasePair& pair(phasePairIter());
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if (pair.ordered())
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{
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continue;
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}
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const phaseModel& phase1 = pair.phase1();
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const phaseModel& phase2 = pair.phase2();
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const volScalarField& he1(phase1.thermo().he());
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const volScalarField& he2(phase2.thermo().he());
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const volScalarField& K1(phase1.K());
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const volScalarField& K2(phase2.K());
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const volScalarField dmdt(this->dmdt(pair));
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const volScalarField dmdt21(posPart(dmdt));
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const volScalarField dmdt12(negPart(dmdt));
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const volScalarField& Tf(*this->Tf_[pair]);
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*eqns[phase1.name()] +=
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dmdt21*(phase1.thermo().he(phase1.thermo().p(), Tf))
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- fvm::Sp(dmdt21, he1)
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+ dmdt21*(K2 - K1);
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*eqns[phase2.name()] -=
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dmdt12*(phase2.thermo().he(phase2.thermo().p(), Tf))
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- fvm::Sp(dmdt12, he2)
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+ dmdt12*(K1 - K2);
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}
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}
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return eqnsPtr;
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}
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template<class BasePhaseSystem>
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Foam::autoPtr<Foam::phaseSystem::massTransferTable>
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Foam::InterfaceCompositionPhaseChangePhaseSystem<BasePhaseSystem>::
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massTransfer() const
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{
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autoPtr<phaseSystem::massTransferTable> eqnsPtr =
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BasePhaseSystem::massTransfer();
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phaseSystem::massTransferTable& eqns = eqnsPtr();
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// Reset the interfacial mass flow rates
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forAllConstIter
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(
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phaseSystem::phasePairTable,
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this->phasePairs_,
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phasePairIter
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)
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{
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const phasePair& pair(phasePairIter());
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if (pair.ordered())
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{
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continue;
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}
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*this->iDmdt_[pair] =
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*this->iDmdtExplicit_[pair];
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*this->iDmdtExplicit_[pair] =
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dimensionedScalar("zero", dimDensity/dimTime, 0);
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}
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// Sum up the contribution from each interface composition model
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forAllConstIter
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(
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interfaceCompositionModelTable,
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interfaceCompositionModels_,
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interfaceCompositionModelIter
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)
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{
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const interfaceCompositionModel& compositionModel
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(
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interfaceCompositionModelIter()
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);
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const phasePair& pair
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(
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this->phasePairs_[interfaceCompositionModelIter.key()]
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);
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const phaseModel& phase = pair.phase1();
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const phaseModel& otherPhase = pair.phase2();
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const phasePairKey key(phase.name(), otherPhase.name());
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const volScalarField& Tf(*this->Tf_[key]);
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volScalarField& iDmdtExplicit_(*this->iDmdtExplicit_[key]);
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volScalarField& iDmdt_(*this->iDmdt_[key]);
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scalar dmdtSign(Pair<word>::compare(this->iDmdt_.find(key).key(), key));
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const volScalarField K
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(
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this->massTransferModels_[key][phase.name()]->K()
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);
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forAllConstIter
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(
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hashedWordList,
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compositionModel.species(),
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memberIter
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)
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{
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const word& member = *memberIter;
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const word name
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(
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IOobject::groupName(member, phase.name())
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);
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const word otherName
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(
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IOobject::groupName(member, otherPhase.name())
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);
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const volScalarField KD
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(
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K*compositionModel.D(member)
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);
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const volScalarField Yf
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(
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compositionModel.Yf(member, Tf)
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);
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// Implicit transport through the phase
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*eqns[name] +=
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phase.rho()*KD*Yf
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- fvm::Sp(phase.rho()*KD, eqns[name]->psi());
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// Sum the mass transfer rate
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iDmdtExplicit_ += dmdtSign*phase.rho()*KD*Yf;
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iDmdt_ -= dmdtSign*phase.rho()*KD*eqns[name]->psi();
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// Explicit transport out of the other phase
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if (eqns.found(otherName))
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{
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*eqns[otherName] -=
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otherPhase.rho()*KD*compositionModel.dY(member, Tf);
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}
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}
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}
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return eqnsPtr;
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}
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template<class BasePhaseSystem>
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void Foam::InterfaceCompositionPhaseChangePhaseSystem<BasePhaseSystem>::
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correctThermo()
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{
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phaseSystem::correctThermo();
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// This loop solves for the interface temperatures, Tf, and updates the
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// interface composition models.
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//
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// The rate of heat transfer to the interface must equal the latent heat
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// consumed at the interface, i.e.:
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//
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// H1*(T1 - Tf) + H2*(T2 - Tf) == mDotL
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// == K*rho*(Yfi - Yi)*Li
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//
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// Yfi is likely to be a strong non-linear (typically exponential) function
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// of Tf, so the solution for the temperature is newton-accelerated
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forAllConstIter
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(
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phaseSystem::phasePairTable,
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this->phasePairs_,
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phasePairIter
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)
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{
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const phasePair& pair(phasePairIter());
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if (pair.ordered())
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{
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continue;
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}
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const phasePairKey key12(pair.first(), pair.second(), true);
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const phasePairKey key21(pair.second(), pair.first(), true);
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volScalarField H1(this->heatTransferModels_[pair][pair.first()]->K());
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volScalarField H2(this->heatTransferModels_[pair][pair.second()]->K());
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dimensionedScalar HSmall("small", heatTransferModel::dimK, small);
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volScalarField mDotL
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(
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IOobject
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(
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"mDotL",
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this->mesh().time().timeName(),
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this->mesh()
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),
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this->mesh(),
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dimensionedScalar("zero", dimEnergy/dimVolume/dimTime, 0)
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);
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volScalarField mDotLPrime
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(
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IOobject
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(
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"mDotLPrime",
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this->mesh().time().timeName(),
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this->mesh()
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),
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this->mesh(),
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dimensionedScalar("zero", mDotL.dimensions()/dimTemperature, 0)
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);
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volScalarField& Tf = *this->Tf_[pair];
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// Add latent heats from forward and backward models
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if (this->interfaceCompositionModels_.found(key12))
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{
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this->interfaceCompositionModels_[key12]->addMDotL
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(
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this->massTransferModels_[pair][pair.first()]->K(),
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Tf,
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mDotL,
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mDotLPrime
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);
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}
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if (this->interfaceCompositionModels_.found(key21))
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{
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this->interfaceCompositionModels_[key21]->addMDotL
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(
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this->massTransferModels_[pair][pair.second()]->K(),
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Tf,
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mDotL,
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mDotLPrime
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);
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}
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// Update the interface temperature by applying one step of newton's
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// method to the interface relation
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Tf -=
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(
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H1*(Tf - pair.phase1().thermo().T())
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+ H2*(Tf - pair.phase2().thermo().T())
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+ mDotL
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)
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/(
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max(H1 + H2 + mDotLPrime, HSmall)
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);
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Tf.correctBoundaryConditions();
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Info<< "Tf." << pair.name()
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<< ": min = " << min(Tf.primitiveField())
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<< ", mean = " << average(Tf.primitiveField())
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<< ", max = " << max(Tf.primitiveField())
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<< endl;
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// Update the interface compositions
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if (this->interfaceCompositionModels_.found(key12))
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{
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this->interfaceCompositionModels_[key12]->update(Tf);
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}
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if (this->interfaceCompositionModels_.found(key21))
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{
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this->interfaceCompositionModels_[key21]->update(Tf);
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}
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}
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}
|
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|
|
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template<class BasePhaseSystem>
|
|
bool Foam::InterfaceCompositionPhaseChangePhaseSystem<BasePhaseSystem>::read()
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{
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if (BasePhaseSystem::read())
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{
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bool readOK = true;
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// Models ...
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return readOK;
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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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// ************************************************************************* //
|