210 lines
6.3 KiB
C
210 lines
6.3 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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Description
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\*---------------------------------------------------------------------------*/
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#include "maxwellSlipUFvPatchVectorField.H"
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#include "addToRunTimeSelectionTable.H"
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#include "mathematicalConstants.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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#include "fvCFD.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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maxwellSlipUFvPatchVectorField::maxwellSlipUFvPatchVectorField
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(
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const fvPatch& p,
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const DimensionedField<vector, volMesh>& iF
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)
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:
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mixedFixedValueSlipFvPatchVectorField(p, iF),
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accommodationCoeff_(1.0),
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Uwall_(p.size(), vector(0.0, 0.0, 0.0)),
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thermalCreep_(true),
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curvature_(true)
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{}
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maxwellSlipUFvPatchVectorField::maxwellSlipUFvPatchVectorField
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(
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const maxwellSlipUFvPatchVectorField& tdpvf,
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const fvPatch& p,
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const DimensionedField<vector, volMesh>& iF,
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const fvPatchFieldMapper& mapper
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)
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:
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mixedFixedValueSlipFvPatchVectorField(tdpvf, p, iF, mapper),
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accommodationCoeff_(tdpvf.accommodationCoeff_),
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Uwall_(tdpvf.Uwall_),
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thermalCreep_(tdpvf.thermalCreep_),
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curvature_(tdpvf.curvature_)
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{}
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maxwellSlipUFvPatchVectorField::maxwellSlipUFvPatchVectorField
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(
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const fvPatch& p,
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const DimensionedField<vector, volMesh>& iF,
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const dictionary& dict
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)
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:
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mixedFixedValueSlipFvPatchVectorField(p, iF),
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accommodationCoeff_(readScalar(dict.lookup("accommodationCoeff"))),
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Uwall_("Uwall", dict, p.size()),
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thermalCreep_(dict.lookupOrDefault("thermalCreep", true)),
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curvature_(dict.lookupOrDefault("curvature", true))
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{
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if
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(
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mag(accommodationCoeff_) < SMALL
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||
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mag(accommodationCoeff_) > 2.0
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)
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{
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FatalIOErrorIn
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(
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"maxwellSlipUFvPatchScalarField::"
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"maxwellSlipUFvPatchScalarField"
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"(const fvPatch&, const scalarField&, const dictionary&)",
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dict
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) << "unphysical accommodationCoeff_ specified"
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<< "(0 < accommodationCoeff_ <= 1)" << endl
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<< exit(FatalError);
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}
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if (dict.found("value"))
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{
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fvPatchField<vector>::operator=
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(
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vectorField("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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mixedFixedValueSlipFvPatchVectorField::evaluate();
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}
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}
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maxwellSlipUFvPatchVectorField::maxwellSlipUFvPatchVectorField
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(
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const maxwellSlipUFvPatchVectorField& tdpvf,
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const DimensionedField<vector, volMesh>& iF
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)
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:
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mixedFixedValueSlipFvPatchVectorField(tdpvf, iF),
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accommodationCoeff_(tdpvf.accommodationCoeff_),
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Uwall_(tdpvf.Uwall_),
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thermalCreep_(tdpvf.thermalCreep_),
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curvature_(tdpvf.curvature_)
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{}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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// Update the coefficients associated with the patch field
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void maxwellSlipUFvPatchVectorField::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 fvPatchScalarField& pmu =
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lookupPatchField<volScalarField, scalar>("mu");
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const fvPatchScalarField& prho =
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lookupPatchField<volScalarField, scalar>("rho");
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const fvPatchField<scalar>& ppsi =
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lookupPatchField<volScalarField, scalar>("psi");
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Field<scalar> C1 = sqrt(ppsi*mathematicalConstant::pi/2.0)
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*(2.0 - accommodationCoeff_)/accommodationCoeff_;
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Field<scalar> pnu = pmu/prho;
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valueFraction() = (1.0/(1.0 + patch().deltaCoeffs()*C1*pnu));
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refValue() = Uwall_;
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if(thermalCreep_)
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{
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const volScalarField& vsfT =
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this->db().objectRegistry::lookupObject<volScalarField>("T");
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label patchi = this->patch().index();
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const fvPatchScalarField& pT = vsfT.boundaryField()[patchi];
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Field<vector> gradpT = fvc::grad(vsfT)().boundaryField()[patchi];
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vectorField n = patch().nf();
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refValue() -= 3.0*pnu/(4.0*pT)*transform(I - n*n, gradpT);
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}
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if(curvature_)
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{
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const fvPatchTensorField& ptauMC =
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lookupPatchField<volTensorField, tensor>("tauMC");
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vectorField n = patch().nf();
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refValue() -= C1/prho*transform(I - n*n, (n & ptauMC));
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}
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mixedFixedValueSlipFvPatchVectorField::updateCoeffs();
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}
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// Write
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void maxwellSlipUFvPatchVectorField::write(Ostream& os) const
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{
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fvPatchVectorField::write(os);
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os.writeKeyword("accommodationCoeff")
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<< accommodationCoeff_ << token::END_STATEMENT << nl;
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Uwall_.writeEntry("Uwall", os);
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os.writeKeyword("thermalCreep")
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<< thermalCreep_ << token::END_STATEMENT << nl;
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os.writeKeyword("curvature") << curvature_ << token::END_STATEMENT << nl;
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os.writeKeyword("refValue")
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<< refValue() << token::END_STATEMENT << nl;
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os.writeKeyword("valueFraction")
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<< valueFraction() << token::END_STATEMENT << nl;
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writeEntry("value", os);
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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makePatchTypeField(fvPatchVectorField, maxwellSlipUFvPatchVectorField);
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// ************************************************************************* //
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