smoluchowskiJumpTFvPatchScalarField.C

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    Copyright (C) 2020 OpenCFD Ltd.
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#include "smoluchowskiJumpTFvPatchScalarField.H"
#include "addToRunTimeSelectionTable.H"
#include "fvPatchFieldMapper.H"
#include "volFields.H"
#include "basicThermo.H"
#include "mathematicalConstants.H"
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::smoluchowskiJumpTFvPatchScalarField::smoluchowskiJumpTFvPatchScalarField
(
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF
)
:
    mixedFvPatchScalarField(p, iF),
    UName_("U"),
    rhoName_("rho"),
    psiName_("thermo:psi"),
    muName_("thermo:mu"),
    accommodationCoeff_(1.0),
    Twall_(p.size(), Zero),
    gamma_(1.4)
{
    refValue() = 0.0;
    refGrad() = 0.0;
    valueFraction() = 0.0;
}
 
 
Foam::smoluchowskiJumpTFvPatchScalarField::smoluchowskiJumpTFvPatchScalarField
(
    const smoluchowskiJumpTFvPatchScalarField& ptf,
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF,
    const fvPatchFieldMapper& mapper
)
:
    mixedFvPatchScalarField(ptf, p, iF, mapper),
    UName_(ptf.UName_),
    rhoName_(ptf.rhoName_),
    psiName_(ptf.psiName_),
    muName_(ptf.muName_),
    accommodationCoeff_(ptf.accommodationCoeff_),
    Twall_(ptf.Twall_),
    gamma_(ptf.gamma_)
{}
 
 
Foam::smoluchowskiJumpTFvPatchScalarField::smoluchowskiJumpTFvPatchScalarField
(
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF,
    const dictionary& dict
)
:
    mixedFvPatchScalarField(p, iF),
    UName_(dict.getOrDefault<word>("U", "U")),
    rhoName_(dict.getOrDefault<word>("rho", "rho")),
    psiName_(dict.getOrDefault<word>("psi", "thermo:psi")),
    muName_(dict.getOrDefault<word>("mu", "thermo:mu")),
    accommodationCoeff_(dict.get<scalar>("accommodationCoeff")),
    Twall_("Twall", dict, p.size()),
    gamma_(dict.getOrDefault<scalar>("gamma", 1.4))
{
    if
    (
        mag(accommodationCoeff_) < SMALL
     || mag(accommodationCoeff_) > 2.0
    )
    {
        FatalIOErrorInFunction(dict)
            << "unphysical accommodationCoeff specified"
            << "(0 < accommodationCoeff <= 1)" << endl
            << exit(FatalIOError);
    }
 
    if (dict.found("value"))
    {
        fvPatchField<scalar>::operator=
        (
            scalarField("value", dict, p.size())
        );
    }
    else
    {
        fvPatchField<scalar>::operator=(patchInternalField());
    }
 
    refValue() = *this;
    refGrad() = 0.0;
    valueFraction() = 0.0;
}
 
 
Foam::smoluchowskiJumpTFvPatchScalarField::smoluchowskiJumpTFvPatchScalarField
(
    const smoluchowskiJumpTFvPatchScalarField& ptpsf,
    const DimensionedField<scalar, volMesh>& iF
)
:
    mixedFvPatchScalarField(ptpsf, iF),
    accommodationCoeff_(ptpsf.accommodationCoeff_),
    Twall_(ptpsf.Twall_),
    gamma_(ptpsf.gamma_)
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
// Map from self
void Foam::smoluchowskiJumpTFvPatchScalarField::autoMap
(
    const fvPatchFieldMapper& m
)
{
    mixedFvPatchScalarField::autoMap(m);
}
 
 
// Reverse-map the given fvPatchField onto this fvPatchField
void Foam::smoluchowskiJumpTFvPatchScalarField::rmap
(
    const fvPatchField<scalar>& ptf,
    const labelList& addr
)
{
    mixedFvPatchField<scalar>::rmap(ptf, addr);
}
 
 
// Update the coefficients associated with the patch field
void Foam::smoluchowskiJumpTFvPatchScalarField::updateCoeffs()
{
    if (updated())
    {
        return;
    }
 
    const fvPatchScalarField& pmu =
        patch().lookupPatchField<volScalarField, scalar>(muName_);
    const fvPatchScalarField& prho =
        patch().lookupPatchField<volScalarField, scalar>(rhoName_);
    const fvPatchField<scalar>& ppsi =
        patch().lookupPatchField<volScalarField, scalar>(psiName_);
    const fvPatchVectorField& pU =
        patch().lookupPatchField<volVectorField, vector>(UName_);
 
    // Prandtl number reading consistent with rhoCentralFoam
    const dictionary& thermophysicalProperties =
        db().lookupObject<IOdictionary>(basicThermo::dictName);
 
    dimensionedScalar Pr
    (
        "Pr",
        dimless,
        thermophysicalProperties.subDict("mixture").subDict("transport")
    );
 
    Field<scalar> C2
    (
        pmu/prho
        *sqrt(ppsi*constant::mathematical::piByTwo)
        *2.0*gamma_/Pr.value()/(gamma_ + 1.0)
        *(2.0 - accommodationCoeff_)/accommodationCoeff_
    );
 
    Field<scalar> aCoeff(prho.snGrad() - prho/C2);
    Field<scalar> KEbyRho(0.5*magSqr(pU));
 
    valueFraction() = (1.0/(1.0 + patch().deltaCoeffs()*C2));
    refValue() = Twall_;
    refGrad() = 0.0;
 
    mixedFvPatchScalarField::updateCoeffs();
}
 
 
// Write
void Foam::smoluchowskiJumpTFvPatchScalarField::write(Ostream& os) const
{
    fvPatchScalarField::write(os);
 
    os.writeEntryIfDifferent<word>("U", "U", UName_);
    os.writeEntryIfDifferent<word>("rho", "rho", rhoName_);
    os.writeEntryIfDifferent<word>("psi", "thermo:psi", psiName_);
    os.writeEntryIfDifferent<word>("mu", "thermo:mu", muName_);
 
    os.writeEntry("accommodationCoeff", accommodationCoeff_);
    Twall_.writeEntry("Twall", os);
    os.writeEntry("gamma", gamma_);
    writeEntry("value", os);
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
    makePatchTypeField
    (
        fvPatchScalarField,
        smoluchowskiJumpTFvPatchScalarField
    );
}
 
 
// ************************************************************************* //