phaseHydrostaticPressureFvPatchScalarField.C

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    Copyright (C) 2017-2020 OpenCFD Ltd.
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#include "phaseHydrostaticPressureFvPatchScalarField.H"
#include "addToRunTimeSelectionTable.H"
#include "fvPatchFieldMapper.H"
#include "volFields.H"
#include "surfaceFields.H"
#include "gravityMeshObject.H"
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::phaseHydrostaticPressureFvPatchScalarField::
phaseHydrostaticPressureFvPatchScalarField
(
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF
)
:
    mixedFvPatchScalarField(p, iF),
    phaseFraction_("alpha"),
    rho_(0.0),
    pRefValue_(0.0),
    pRefPoint_(Zero)
{
    this->refValue() = 0.0;
    this->refGrad() = 0.0;
    this->valueFraction() = 0.0;
}
 
 
Foam::phaseHydrostaticPressureFvPatchScalarField::
phaseHydrostaticPressureFvPatchScalarField
(
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF,
    const dictionary& dict
)
:
    mixedFvPatchScalarField(p, iF),
    phaseFraction_(dict.getOrDefault<word>("phaseFraction", "alpha")),
    rho_(dict.get<scalar>("rho")),
    pRefValue_(dict.get<scalar>("pRefValue")),
    pRefPoint_(dict.lookup("pRefPoint"))
{
    this->patchType() = dict.getOrDefault<word>("patchType", word::null);
 
    this->refValue() = pRefValue_;
 
    if (dict.found("value"))
    {
        fvPatchScalarField::operator=
        (
            scalarField("value", dict, p.size())
        );
    }
    else
    {
        fvPatchScalarField::operator=(this->refValue());
    }
 
    this->refGrad() = 0.0;
    this->valueFraction() = 0.0;
}
 
 
Foam::phaseHydrostaticPressureFvPatchScalarField::
phaseHydrostaticPressureFvPatchScalarField
(
    const phaseHydrostaticPressureFvPatchScalarField& ptf,
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF,
    const fvPatchFieldMapper& mapper
)
:
    mixedFvPatchScalarField(ptf, p, iF, mapper),
    phaseFraction_(ptf.phaseFraction_),
    rho_(ptf.rho_),
    pRefValue_(ptf.pRefValue_),
    pRefPoint_(ptf.pRefPoint_)
{}
 
 
Foam::phaseHydrostaticPressureFvPatchScalarField::
phaseHydrostaticPressureFvPatchScalarField
(
    const phaseHydrostaticPressureFvPatchScalarField& ptf
)
:
    mixedFvPatchScalarField(ptf),
    phaseFraction_(ptf.phaseFraction_)
{}
 
 
Foam::phaseHydrostaticPressureFvPatchScalarField::
phaseHydrostaticPressureFvPatchScalarField
(
    const phaseHydrostaticPressureFvPatchScalarField& ptf,
    const DimensionedField<scalar, volMesh>& iF
)
:
    mixedFvPatchScalarField(ptf, iF),
    phaseFraction_(ptf.phaseFraction_),
    rho_(ptf.rho_),
    pRefValue_(ptf.pRefValue_),
    pRefPoint_(ptf.pRefPoint_)
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
void Foam::phaseHydrostaticPressureFvPatchScalarField::updateCoeffs()
{
    if (this->updated())
    {
        return;
    }
 
    const scalarField& alphap =
        patch().lookupPatchField<volScalarField, scalar>
        (
            phaseFraction_
        );
 
    const uniformDimensionedVectorField& g =
        meshObjects::gravity::New(db().time());
 
    // scalar rhor = 1000;
    // scalarField alphap1 = max(min(alphap, scalar(1)), scalar(0));
    // valueFraction() = alphap1/(alphap1 + rhor*(1.0 - alphap1));
    valueFraction() = max(min(alphap, scalar(1)), scalar(0));
 
    refValue() =
        pRefValue_
      + rho_*((g.value() & patch().Cf()) - (g.value() & pRefPoint_));
 
    mixedFvPatchScalarField::updateCoeffs();
}
 
 
void Foam::phaseHydrostaticPressureFvPatchScalarField::write(Ostream& os) const
{
    fvPatchScalarField::write(os);
    os.writeEntryIfDifferent<word>("phaseFraction", "alpha", phaseFraction_);
    os.writeEntry("rho", rho_);
    os.writeEntry("pRefValue", pRefValue_);
    os.writeEntry("pRefPoint", pRefPoint_);
    writeEntry("value", os);
}
 
 
// * * * * * * * * * * * * * * * Member Operators  * * * * * * * * * * * * * //
 
void Foam::phaseHydrostaticPressureFvPatchScalarField::operator=
(
    const fvPatchScalarField& ptf
)
{
    fvPatchScalarField::operator=
    (
        valueFraction()*refValue() + (1 - valueFraction())*ptf
    );
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
    makePatchTypeField
    (
        fvPatchScalarField,
        phaseHydrostaticPressureFvPatchScalarField
    );
}
 
// ************************************************************************* //