234 lines
6.7 KiB
C
234 lines
6.7 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | foam-extend: Open Source CFD
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\\ / O peration | Version: 3.2
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\\ / A nd | Web: http://www.foam-extend.org
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\\/ M anipulation | For copyright notice see file Copyright
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-------------------------------------------------------------------------------
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License
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This file is part of foam-extend.
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foam-extend 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 the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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foam-extend is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License 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 foam-extend. If not, see <http://www.gnu.org/licenses/>.
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\*---------------------------------------------------------------------------*/
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#include "extendedWallHeatTransferFvPatchScalarField.H"
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#include "addToRunTimeSelectionTable.H"
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#include "fvPatchFieldMapper.H"
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#include "volFields.H"
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#include "radiationConstants.H"
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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Foam::extendedWallHeatTransferFvPatchScalarField::extendedWallHeatTransferFvPatchScalarField
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(
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const fvPatch& p,
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const DimensionedField<scalar, volMesh>& iF
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)
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:
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mixedFvPatchScalarField(p, iF),
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Tinf_(0.0),
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hc_(0.0),
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alpha_(0.0),
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KName_("undefined-K"),
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radiation_(false)
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{}
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Foam::extendedWallHeatTransferFvPatchScalarField::extendedWallHeatTransferFvPatchScalarField
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(
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const extendedWallHeatTransferFvPatchScalarField& ptf,
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const fvPatch& p,
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const DimensionedField<scalar, volMesh>& iF,
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const fvPatchFieldMapper& mapper
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)
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:
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mixedFvPatchScalarField(p, iF),
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Tinf_(ptf.Tinf_),
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hc_(ptf.hc_),
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alpha_(ptf.alpha_),
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radSources_(ptf.radSources_),
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KName_(ptf.KName_),
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radiation_(ptf.radiation_)
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{}
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Foam::extendedWallHeatTransferFvPatchScalarField::extendedWallHeatTransferFvPatchScalarField
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(
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const fvPatch& p,
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const DimensionedField<scalar, volMesh>& iF,
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const dictionary& dict
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)
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:
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mixedFvPatchScalarField(p, iF),
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Tinf_(readScalar(dict.lookup("Tinf"))),
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hc_(readScalar(dict.lookup("hc"))),
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alpha_(readScalar(dict.lookup("alpha"))),
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KName_(dict.lookup("K")),
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radiation_(readBool(dict.lookup("radiation")))
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{
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refValue() = Tinf_;
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refGrad() = 0.0;
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valueFraction() = 0.0;
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// Construct radiation sources
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PtrList<entry> entries(dict.lookup("radiationSources"));
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radSources_.setSize(entries.size());
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forAll(entries, entryI)
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{
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radSources_.set
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(
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entryI,
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externalRadiationSource::New
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(
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entries[entryI].keyword(),
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entries[entryI].dict(),
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p
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)
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);
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}
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fvPatchField<scalar>::operator=
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(
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scalarField("value", dict, p.size())
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);
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}
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Foam::extendedWallHeatTransferFvPatchScalarField::extendedWallHeatTransferFvPatchScalarField
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(
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const extendedWallHeatTransferFvPatchScalarField& tppsf
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)
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:
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mixedFvPatchScalarField(tppsf),
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Tinf_(tppsf.Tinf_),
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hc_(tppsf.hc_),
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alpha_(tppsf.alpha_),
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radSources_(tppsf.radSources_),
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KName_(tppsf.KName_),
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radiation_(tppsf.radiation_)
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{}
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Foam::extendedWallHeatTransferFvPatchScalarField::extendedWallHeatTransferFvPatchScalarField
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(
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const extendedWallHeatTransferFvPatchScalarField& tppsf,
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const DimensionedField<scalar, volMesh>& iF
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)
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:
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mixedFvPatchScalarField(tppsf, iF),
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Tinf_(tppsf.Tinf_),
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hc_(tppsf.hc_),
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alpha_(tppsf.alpha_),
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radSources_(tppsf.radSources_),
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KName_(tppsf.KName_),
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radiation_(tppsf.radiation_)
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{}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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void Foam::extendedWallHeatTransferFvPatchScalarField::updateCoeffs()
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{
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if (updated())
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{
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return;
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}
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const fvPatch& p = patch();
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scalarField Tc = patchInternalField();
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const scalarField& Tb = *this;
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const scalarField& kappaEff =
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p.lookupPatchField<volScalarField, scalar>(KName_);
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scalarField term = kappaEff*patch().deltaCoeffs();
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scalarField Qri(p.size(), 0);
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if (radiation())
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{
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Qri = p.lookupPatchField<volScalarField, scalar>("Qr");
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}
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scalarField Qrio = 4.0*radiation::sigmaSB.value()*pow4(Tb);
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scalarField Two = Tb - (term*(patchInternalField() - Tb) + Qri)/hc_;
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scalarField Qro(p.size(), 0.0);
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forAll(radSources_, rsI)
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{
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Qro += radSources_[rsI].q(Two);
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}
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scalarField term2 = Tb*hc_*alpha_ + hc_*Qrio + alpha_*Qrio;
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//Info << "Tc = " << Tc << endl;
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//Info << "Tb = "<< (scalarField) *this << endl;
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//Info << "Two = "<< Two << endl;
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//Info << "Qri = "<< Qri << endl;
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//Info << "q = "<< q << endl;
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//Info << "q1 = " << hc_*(*this - Two) << endl;
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//Info << "q2 = " << Qro + alpha_*(Two - Tinf_) << endl;
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//Info << "q3 = "<< term*(Tc - *this) + Qri << endl;
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valueFraction() = 1.0 / (1.0 + Tb*term*(hc_ + alpha_)/term2);
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refValue() =
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Tb*(hc_*alpha_*Tinf_ - hc_*Qro + (hc_ + alpha_)*(Qri + Qrio))/term2;
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mixedFvPatchScalarField::updateCoeffs();
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}
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void Foam::extendedWallHeatTransferFvPatchScalarField::write(Ostream& os) const
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{
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fvPatchScalarField::write(os);
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os.writeKeyword("K") << KName_ << token::END_STATEMENT << nl;
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os.writeKeyword("radiation") << radiation_ << token::END_STATEMENT << nl;
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os.writeKeyword("Tinf") << Tinf_ << token::END_STATEMENT << nl;
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os.writeKeyword("hc") << hc_ << token::END_STATEMENT << nl;
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os.writeKeyword("alpha") << alpha_ << token::END_STATEMENT << nl;
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os << nl << indent << "radiationSources" << nl
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<< indent << token::BEGIN_LIST << incrIndent << nl;
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forAll(radSources_, rsI)
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{
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os << indent << radSources_[rsI].name() << nl
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<< indent << token::BEGIN_BLOCK << nl << incrIndent;
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radSources_[rsI].write(os);
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os << decrIndent << indent << token::END_BLOCK << endl;
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}
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os << decrIndent << indent
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<< token::END_LIST << token::END_STATEMENT << nl << nl;
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writeEntry("value", os);
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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makePatchTypeField
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(
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fvPatchScalarField,
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extendedWallHeatTransferFvPatchScalarField
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);
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}
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// ************************************************************************* //
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