solidificationMeltingSource: Temporarily removed to commit new version
This commit is contained in:
Henry Weller
@ -1,342 +0,0 @@
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/*---------------------------------------------------------------------------*\
|
||||
========= |
|
||||
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
||||
\\ / O peration |
|
||||
\\ / A nd | Copyright (C) 2014-2018 OpenFOAM Foundation
|
||||
\\/ M anipulation |
|
||||
-------------------------------------------------------------------------------
|
||||
License
|
||||
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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#include "solidificationMeltingSource.H"
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#include "fvMatrices.H"
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#include "basicThermo.H"
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#include "uniformDimensionedFields.H"
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#include "zeroGradientFvPatchFields.H"
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#include "extrapolatedCalculatedFvPatchFields.H"
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#include "addToRunTimeSelectionTable.H"
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#include "geometricOneField.H"
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// * * * * * * * * * * * * * Static Member Functions * * * * * * * * * * * * //
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namespace Foam
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{
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template<>
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const char* NamedEnum
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<
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fv::solidificationMeltingSource::thermoMode,
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2
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>::names[] =
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{
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"thermo",
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"lookup"
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};
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namespace fv
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{
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defineTypeNameAndDebug(solidificationMeltingSource, 0);
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addToRunTimeSelectionTable
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(
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option,
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solidificationMeltingSource,
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dictionary
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);
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}
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}
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const Foam::NamedEnum<Foam::fv::solidificationMeltingSource::thermoMode, 2>
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Foam::fv::solidificationMeltingSource::thermoModeTypeNames_;
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// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
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Foam::tmp<Foam::volScalarField>
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Foam::fv::solidificationMeltingSource::Cp() const
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{
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switch (mode_)
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{
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case mdThermo:
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{
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const basicThermo& thermo =
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mesh_.lookupObject<basicThermo>(basicThermo::dictName);
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return thermo.Cp();
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break;
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}
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case mdLookup:
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{
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if (CpName_ == "CpRef")
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{
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scalar CpRef = readScalar(coeffs_.lookup("CpRef"));
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return tmp<volScalarField>
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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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name_ + ":Cp",
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mesh_.time().timeName(),
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mesh_,
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IOobject::NO_READ,
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IOobject::NO_WRITE
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||||
),
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mesh_,
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dimensionedScalar
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(
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"Cp",
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dimEnergy/dimMass/dimTemperature,
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CpRef
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),
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extrapolatedCalculatedFvPatchScalarField::typeName
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||||
)
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);
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}
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else
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{
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return mesh_.lookupObject<volScalarField>(CpName_);
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}
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break;
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}
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default:
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{
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FatalErrorInFunction
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<< "Unhandled thermo mode: " << thermoModeTypeNames_[mode_]
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<< abort(FatalError);
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}
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}
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return tmp<volScalarField>(nullptr);
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}
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Foam::vector Foam::fv::solidificationMeltingSource::g() const
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{
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if (mesh_.foundObject<uniformDimensionedVectorField>("g"))
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{
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const uniformDimensionedVectorField& value =
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mesh_.lookupObject<uniformDimensionedVectorField>("g");
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return value.value();
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}
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else
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{
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return coeffs_.lookup("g");
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}
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}
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void Foam::fv::solidificationMeltingSource::update(const volScalarField& Cp)
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{
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if (curTimeIndex_ == mesh_.time().timeIndex())
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{
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return;
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}
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if (debug)
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{
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Info<< type() << ": " << name_ << " - updating phase indicator" << endl;
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}
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// update old time alpha1 field
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alpha1_.oldTime();
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const volScalarField& T = mesh_.lookupObject<volScalarField>(TName_);
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forAll(cells_, i)
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{
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const label celli = cells_[i];
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const scalar Tc = T[celli];
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const scalar Cpc = Cp[celli];
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const scalar alpha1New =
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alpha1_[celli]
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+ relax_*Cpc
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*(
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Tc
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- max
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(
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Tsol_,
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Tsol_
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+ (Tliq_ - Tsol_)*(alpha1_[celli] - alpha1e_)/(1 - alpha1e_)
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)
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)/L_;
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alpha1_[celli] = max(0, min(alpha1New, 1));
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deltaT_[i] =
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Tc
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- max
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(
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Tsol_,
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Tsol_
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+ (Tliq_ - Tsol_)*(alpha1_[celli] - alpha1e_)/(1 - alpha1e_)
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);
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}
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alpha1_.correctBoundaryConditions();
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curTimeIndex_ = mesh_.time().timeIndex();
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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Foam::fv::solidificationMeltingSource::solidificationMeltingSource
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(
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const word& sourceName,
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const word& modelType,
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const dictionary& dict,
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const fvMesh& mesh
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)
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:
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cellSetOption(sourceName, modelType, dict, mesh),
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Tsol_(readScalar(coeffs_.lookup("Tsol"))),
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Tliq_(coeffs_.lookupOrDefault("Tliq", Tsol_)),
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alpha1e_(coeffs_.lookupOrDefault("alpha1e", 0)),
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L_(readScalar(coeffs_.lookup("L"))),
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relax_(coeffs_.lookupOrDefault("relax", 0.9)),
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mode_(thermoModeTypeNames_.read(coeffs_.lookup("thermoMode"))),
|
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rhoRef_(readScalar(coeffs_.lookup("rhoRef"))),
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TName_(coeffs_.lookupOrDefault<word>("T", "T")),
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CpName_(coeffs_.lookupOrDefault<word>("Cp", "Cp")),
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UName_(coeffs_.lookupOrDefault<word>("U", "U")),
|
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phiName_(coeffs_.lookupOrDefault<word>("phi", "phi")),
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Cu_(coeffs_.lookupOrDefault<scalar>("Cu", 100000)),
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q_(coeffs_.lookupOrDefault("q", 0.001)),
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beta_(readScalar(coeffs_.lookup("beta"))),
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alpha1_
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(
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IOobject
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(
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name_ + ":alpha1",
|
||||
mesh.time().timeName(),
|
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mesh,
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IOobject::READ_IF_PRESENT,
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IOobject::AUTO_WRITE
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),
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mesh,
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dimensionedScalar("alpha1", dimless, 0),
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zeroGradientFvPatchScalarField::typeName
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),
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curTimeIndex_(-1),
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deltaT_(cells_.size(), 0)
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{
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fieldNames_.setSize(2);
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fieldNames_[0] = UName_;
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switch (mode_)
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{
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case mdThermo:
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{
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const basicThermo& thermo =
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mesh_.lookupObject<basicThermo>(basicThermo::dictName);
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fieldNames_[1] = thermo.he().name();
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break;
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}
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case mdLookup:
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{
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fieldNames_[1] = TName_;
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break;
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}
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default:
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{
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FatalErrorInFunction
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<< "Unhandled thermo mode: " << thermoModeTypeNames_[mode_]
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<< abort(FatalError);
|
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}
|
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}
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applied_.setSize(fieldNames_.size(), false);
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}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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void Foam::fv::solidificationMeltingSource::addSup
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(
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fvMatrix<scalar>& eqn,
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const label fieldi
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)
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{
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apply(geometricOneField(), eqn);
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}
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void Foam::fv::solidificationMeltingSource::addSup
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(
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const volScalarField& rho,
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fvMatrix<scalar>& eqn,
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const label fieldi
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)
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{
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apply(rho, eqn);
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}
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void Foam::fv::solidificationMeltingSource::addSup
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(
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fvMatrix<vector>& eqn,
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const label fieldi
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)
|
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{
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if (debug)
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{
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Info<< type() << ": applying source to " << eqn.psi().name() << endl;
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}
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||||
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const volScalarField Cp(this->Cp());
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update(Cp);
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vector g = this->g();
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scalarField& Sp = eqn.diag();
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vectorField& Su = eqn.source();
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const scalarField& V = mesh_.V();
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forAll(cells_, i)
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{
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const label celli = cells_[i];
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const scalar Vc = V[celli];
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const scalar alpha1c = alpha1_[celli];
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|
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const scalar S = -Cu_*sqr(1.0 - alpha1c)/(pow3(alpha1c) + q_);
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const vector Sb = rhoRef_*g*beta_*deltaT_[i];
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Sp[celli] += Vc*S;
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Su[celli] += Vc*Sb;
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}
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}
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void Foam::fv::solidificationMeltingSource::addSup
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(
|
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const volScalarField& rho,
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fvMatrix<vector>& eqn,
|
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const label fieldi
|
||||
)
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{
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// Momentum source uses a Boussinesq approximation - redirect
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addSup(eqn, fieldi);
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}
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// ************************************************************************* //
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@ -1,289 +0,0 @@
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/*---------------------------------------------------------------------------*\
|
||||
========= |
|
||||
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
||||
\\ / O peration |
|
||||
\\ / A nd | Copyright (C) 2014-2018 OpenFOAM Foundation
|
||||
\\/ M anipulation |
|
||||
-------------------------------------------------------------------------------
|
||||
License
|
||||
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/>.
|
||||
|
||||
Class
|
||||
Foam::fv::solidificationMeltingSource
|
||||
|
||||
Description
|
||||
This source is designed to model the effect of solidification and melting
|
||||
processes, e.g. windhield defrosting.
|
||||
|
||||
The isotherm phase change occurs at the melting temperature, \c Tsol (= \c
|
||||
Tliq). The not isotherm phase change occurs between solidus and liquidus
|
||||
temperature, \c Tsol < \c Tliq respectively, as long as the melt fraction is
|
||||
greater than the max eutectic melt fraction, \c alpha1e (0 =
|
||||
pure_substance, 1 = eutectic_mixture is not permitted) , i.e. eutectic to
|
||||
initial solvent concentration difference, where a linear eutectic melt
|
||||
fraction to temperature relation is considered - lever rule.
|
||||
|
||||
The presence of the solid phase in the flow field is incorporated into the
|
||||
model as a momentum porosity contribution; the energy associated with the
|
||||
phase change is added as an enthalpy contribution.
|
||||
|
||||
References:
|
||||
\verbatim
|
||||
Voller, V. R., & Prakash, C. (1987).
|
||||
A fixed grid numerical modelling methodology for convection-diffusion
|
||||
mushy region phase-change problems.
|
||||
International Journal of Heat and Mass Transfer, 30(8), 1709-1719.
|
||||
|
||||
Swaminathan, C. R., & Voller, V. R. (1992).
|
||||
A general enthalpy method for modeling solidification processes.
|
||||
Metallurgical transactions B, 23(5), 651-664.
|
||||
\endverbatim
|
||||
|
||||
The model generates the field \c \<name\>:alpha1 which can be visualised to
|
||||
to show the melt distribution as a fraction [0-1].
|
||||
|
||||
Usage
|
||||
Example usage:
|
||||
\verbatim
|
||||
solidificationMeltingSource1
|
||||
{
|
||||
type solidificationMeltingSource;
|
||||
active yes;
|
||||
|
||||
selectionMode cellZone;
|
||||
cellZone iceZone;
|
||||
|
||||
Tsol 273;
|
||||
L 334000;
|
||||
thermoMode thermo;
|
||||
beta 50e-6;
|
||||
rhoRef 800;
|
||||
}
|
||||
\endverbatim
|
||||
|
||||
Where:
|
||||
\table
|
||||
Property | Description | Required | Default value
|
||||
Tsol | Solidus temperature [K] | yes |
|
||||
Tliq | Liquidus temperature [K] | no | Tsol
|
||||
alpha1e | Max eutectic melt fraction [0-1[ | no | 0
|
||||
L | Latent heat of fusion [J/kg] | yes |
|
||||
relax | Relaxation coefficient [0-1] | no | 0.9
|
||||
thermoMode | Thermo mode [thermo|lookup] | yes |
|
||||
rhoRef | Reference (solid) density [kg/m^3] | yes |
|
||||
rho | Name of density field | no | rho
|
||||
T | Name of temperature field | no | T
|
||||
Cp | Name of specific heat field | no | Cp
|
||||
U | Name of velocity field | no | U
|
||||
phi | Name of flux field | no | phi
|
||||
Cu | Model coefficient [1/s] | no | 100000
|
||||
q | Model coefficient | no | 0.001
|
||||
beta | Thermal expansion coefficient [1/K] | yes |
|
||||
g | Accelerartion due to gravity | no |
|
||||
\endtable
|
||||
|
||||
SourceFiles
|
||||
solidificationMeltingSource.C
|
||||
solidificationMeltingSourceIO.C
|
||||
|
||||
\*---------------------------------------------------------------------------*/
|
||||
|
||||
#ifndef solidificationMeltingSource_H
|
||||
#define solidificationMeltingSource_H
|
||||
|
||||
#include "fvMesh.H"
|
||||
#include "volFields.H"
|
||||
#include "cellSetOption.H"
|
||||
#include "NamedEnum.H"
|
||||
|
||||
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||
|
||||
namespace Foam
|
||||
{
|
||||
namespace fv
|
||||
{
|
||||
|
||||
/*---------------------------------------------------------------------------*\
|
||||
Class solidificationMeltingSource Declaration
|
||||
\*---------------------------------------------------------------------------*/
|
||||
|
||||
class solidificationMeltingSource
|
||||
:
|
||||
public cellSetOption
|
||||
{
|
||||
public:
|
||||
|
||||
enum thermoMode
|
||||
{
|
||||
mdThermo,
|
||||
mdLookup
|
||||
};
|
||||
|
||||
static const NamedEnum<thermoMode, 2> thermoModeTypeNames_;
|
||||
|
||||
|
||||
private:
|
||||
|
||||
// Private data
|
||||
|
||||
//- Temperature at which isotherm melting occurs
|
||||
// and not isotherm melting starts e.g. eutectic [K]
|
||||
scalar Tsol_;
|
||||
|
||||
//- Temperature at which not isotherm melting stops (Tliq > Tsol) [K]
|
||||
scalar Tliq_;
|
||||
|
||||
//- Max eutectic melt fraction [0-1[
|
||||
// where 0 = pure substance is default value,
|
||||
// 1 = eutectic mixture is not permitted
|
||||
scalar alpha1e_;
|
||||
|
||||
//- Latent heat of fusion [J/kg]
|
||||
scalar L_;
|
||||
|
||||
//- Phase fraction under-relaxation coefficient
|
||||
scalar relax_;
|
||||
|
||||
//- Thermodynamics mode
|
||||
thermoMode mode_;
|
||||
|
||||
//- Reference density - typically the solid density
|
||||
scalar rhoRef_;
|
||||
|
||||
//- Name of temperature field - default = "T" (optional)
|
||||
word TName_;
|
||||
|
||||
//- Name of specific heat capacity field - default = "Cp" (optional)
|
||||
word CpName_;
|
||||
|
||||
//- Name of velocity field - default = "U" (optional)
|
||||
word UName_;
|
||||
|
||||
//- Name of flux field - default = "phi" (optional)
|
||||
word phiName_;
|
||||
|
||||
//- Mushy region momentum sink coefficient [1/s]; default = 10^5
|
||||
scalar Cu_;
|
||||
|
||||
//- Coefficient used in porosity calc - default = 0.001
|
||||
scalar q_;
|
||||
|
||||
//- Thermal expansion coefficient [1/K]
|
||||
scalar beta_;
|
||||
|
||||
//- Phase fraction indicator field
|
||||
volScalarField alpha1_;
|
||||
|
||||
//- Current time index (used for updating)
|
||||
label curTimeIndex_;
|
||||
|
||||
//- Temperature change cached for source calculation when alpha1 updated
|
||||
scalarField deltaT_;
|
||||
|
||||
|
||||
// Private Member Functions
|
||||
|
||||
//- Return the specific heat capacity field
|
||||
tmp<volScalarField> Cp() const;
|
||||
|
||||
//- Return the gravity vector
|
||||
vector g() const;
|
||||
|
||||
//- Update the model
|
||||
void update(const volScalarField& Cp);
|
||||
|
||||
//- Helper function to apply to the energy equation
|
||||
template<class RhoFieldType>
|
||||
void apply(const RhoFieldType& rho, fvMatrix<scalar>& eqn);
|
||||
|
||||
//- Disallow default bitwise copy construct
|
||||
solidificationMeltingSource(const solidificationMeltingSource&);
|
||||
|
||||
//- Disallow default bitwise assignment
|
||||
void operator=(const solidificationMeltingSource&);
|
||||
|
||||
|
||||
public:
|
||||
|
||||
//- Runtime type information
|
||||
TypeName("solidificationMeltingSource");
|
||||
|
||||
|
||||
// Constructors
|
||||
|
||||
//- Construct from explicit source name and mesh
|
||||
solidificationMeltingSource
|
||||
(
|
||||
const word& sourceName,
|
||||
const word& modelType,
|
||||
const dictionary& dict,
|
||||
const fvMesh& mesh
|
||||
);
|
||||
|
||||
|
||||
// Member Functions
|
||||
|
||||
// Add explicit and implicit contributions
|
||||
|
||||
//- Add explicit contribution to enthalpy equation
|
||||
virtual void addSup(fvMatrix<scalar>& eqn, const label fieldi);
|
||||
|
||||
//- Add implicit contribution to momentum equation
|
||||
virtual void addSup(fvMatrix<vector>& eqn, const label fieldi);
|
||||
|
||||
|
||||
// Add explicit and implicit contributions to compressible equation
|
||||
|
||||
//- Add explicit contribution to compressible enthalpy equation
|
||||
virtual void addSup
|
||||
(
|
||||
const volScalarField& rho,
|
||||
fvMatrix<scalar>& eqn,
|
||||
const label fieldi
|
||||
);
|
||||
|
||||
//- Add implicit contribution to compressible momentum equation
|
||||
virtual void addSup
|
||||
(
|
||||
const volScalarField& rho,
|
||||
fvMatrix<vector>& eqn,
|
||||
const label fieldi
|
||||
);
|
||||
|
||||
|
||||
// IO
|
||||
|
||||
//- Read source dictionary
|
||||
virtual bool read(const dictionary& dict);
|
||||
};
|
||||
|
||||
|
||||
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||
|
||||
} // End namespace fv
|
||||
} // End namespace Foam
|
||||
|
||||
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||
|
||||
#ifdef NoRepository
|
||||
#include "solidificationMeltingSourceTemplates.C"
|
||||
#endif
|
||||
|
||||
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||
|
||||
#endif
|
||||
|
||||
// ************************************************************************* //
|
||||
Reference in New Issue
Block a user