242 lines
6.1 KiB
C
242 lines
6.1 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 "nusseltFvPatchScalarField.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 "surfaceFields.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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nusseltFvPatchScalarField::nusseltFvPatchScalarField
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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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DTName_("undefined"),
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Tinf_(0.0),
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alpha_(p.size(), 0.0)
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{
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refValue() = 0.0;
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refGrad() = 0.0;
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valueFraction() = 0.0;
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}
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nusseltFvPatchScalarField::nusseltFvPatchScalarField
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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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DTName_(dict.lookup("DT")),
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Tinf_(readScalar(dict.lookup("Tinf"))),
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alpha_("alpha", dict, p.size())
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{
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if (dict.found("value"))
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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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else
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{
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fvPatchField<scalar>::operator=(patchInternalField());
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}
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refValue() = *this;
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refGrad() = 0.0;
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valueFraction() = 0.0;
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if (Tinf_ < SMALL)
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{
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FatalIOErrorIn
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(
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"nusseltFvPatchScalarField::nusseltFvPatchScalarField\n"
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"(\n"
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" const fvPatch&,\n"
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" const DimensionedField<scalar, volMesh>&,\n"
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" const dictionary&\n"
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")",
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dict
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) << "unphysical Tinf specified (Tinf = 0 or negative)"
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<< exit(FatalError);
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}
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if (min(alpha_) < -SMALL)
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{
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FatalIOErrorIn
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(
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"nusseltFvPatchScalarField::nusseltFvPatchScalarField\n"
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"(\n"
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" const fvPatch&,\n"
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" const DimensionedField<scalar, volMesh>&,\n"
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" const dictionary&\n"
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")",
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dict
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) << "unphysical alpha specified (alpha = 0 or negative)" << endl
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<< exit(FatalError);
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}
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}
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nusseltFvPatchScalarField::nusseltFvPatchScalarField
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(
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const nusseltFvPatchScalarField& 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(ptf, p, iF, mapper),
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DTName_(ptf.DTName_),
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Tinf_(ptf.Tinf_),
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alpha_(ptf.alpha_)
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{}
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nusseltFvPatchScalarField::nusseltFvPatchScalarField
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(
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const nusseltFvPatchScalarField& ptf
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)
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:
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mixedFvPatchScalarField(ptf),
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DTName_(ptf.DTName_),
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Tinf_(ptf.Tinf_),
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alpha_(ptf.alpha_)
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{}
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nusseltFvPatchScalarField::nusseltFvPatchScalarField
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(
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const nusseltFvPatchScalarField& ptpsf,
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const DimensionedField<scalar, volMesh>& iF
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)
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:
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mixedFvPatchScalarField(ptpsf, iF),
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DTName_(ptpsf.DTName_),
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Tinf_(ptpsf.Tinf_),
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alpha_(ptpsf.alpha_)
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{}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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// Map from self
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void nusseltFvPatchScalarField::autoMap
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(
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const fvPatchFieldMapper& m
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)
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{
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mixedFvPatchScalarField::autoMap(m);
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alpha_.autoMap(m);
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}
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// Reverse-map the given fvPatchField onto this fvPatchField
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void nusseltFvPatchScalarField::rmap
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(
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const fvPatchField<scalar>& ptf,
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const labelList& addr
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)
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{
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mixedFvPatchField<scalar>::rmap(ptf, addr);
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const nusseltFvPatchScalarField& npsf =
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refCast<const nusseltFvPatchScalarField>(ptf);
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alpha_.rmap(npsf.alpha_, addr);
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}
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// Update the coefficients associated with the patch field
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void nusseltFvPatchScalarField::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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scalarField Tinternal = patchInternalField();
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// Lookup temperature diffusivity of the patch
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const fvPatchField<scalar>& DT =
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this->patch().lookupPatchField<volScalarField, scalar>(DTName_);
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// Calculate flux
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scalarField tempFlux = alpha_*(Tinternal - Tinf_);
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refValue() =
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neg(tempFlux)*
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min
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(
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Tinternal - tempFlux/(DT*patch().deltaCoeffs()),
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Tinf_
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)
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+ pos(tempFlux)*
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max
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(
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Tinternal - tempFlux/(DT*patch().deltaCoeffs()),
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Tinf_
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);
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refGrad() = -tempFlux;
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valueFraction() = pos(tempFlux);
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mixedFvPatchScalarField::updateCoeffs();
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}
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// Write
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void nusseltFvPatchScalarField::write(Ostream& os) const
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{
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fvPatchScalarField::write(os);
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os.writeKeyword("DT") << DTName_ << token::END_STATEMENT << nl;
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os.writeKeyword("Tinf") << Tinf_ << token::END_STATEMENT << endl;
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alpha_.writeEntry("alpha", os);
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writeEntry("value", os);
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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makePatchTypeField(fvPatchScalarField, nusseltFvPatchScalarField);
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// ************************************************************************* //
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