porousBafflePressureFvPatchField.C

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#include "porousBafflePressureFvPatchField.H"
#include "surfaceFields.H"
#include "momentumTransportModel.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::porousBafflePressureFvPatchField::porousBafflePressureFvPatchField
(
    const fvPatch& p,
    const DimensionedField<scalar, fvMesh>& iF,
    const dictionary& dict
)
:
    fixedJumpFvPatchScalarField(p, iF, dict, true),
    phiName_
    (
        cyclicPatch().owner()
      ? dict.lookupOrDefault<word>("phi", "phi")
      : word::null
    ),
    rhoName_
    (
        cyclicPatch().owner()
      ? dict.lookupOrDefault<word>("rho", "rho")
      : word::null
    ),
    D_
    (
        cyclicPatch().owner()
      ? dict.lookup<scalar>("D", dimless/dimArea)
      : NaN
    ),
    I_
    (
        cyclicPatch().owner()
      ? dict.lookup<scalar>("I", dimless/dimLength)
      : NaN
    ),
    length_
    (
        cyclicPatch().owner()
      ? dict.lookup<scalar>("length", dimLength)
      : NaN
    ),
    relaxation_
    (
        cyclicPatch().owner()
      ? dict.lookupOrDefault<scalar>("relaxation", units::fraction, 1)
      : NaN
    ),
    jump0_(cyclicPatch().owner() ? jump()() : scalarField(p.size()))
{}
 
 
Foam::porousBafflePressureFvPatchField::porousBafflePressureFvPatchField
(
    const porousBafflePressureFvPatchField& ptf,
    const fvPatch& p,
    const DimensionedField<scalar, fvMesh>& iF,
    const fieldMapper& mapper
)
:
    fixedJumpFvPatchScalarField(ptf, p, iF, mapper),
    phiName_(ptf.phiName_),
    rhoName_(ptf.rhoName_),
    D_(ptf.D_),
    I_(ptf.I_),
    length_(ptf.length_),
    relaxation_(ptf.relaxation_),
    jump0_(ptf.jump0_)
{}
 
 
Foam::porousBafflePressureFvPatchField::porousBafflePressureFvPatchField
(
    const porousBafflePressureFvPatchField& ptf,
    const DimensionedField<scalar, fvMesh>& iF
)
:
    fixedJumpFvPatchScalarField(ptf, iF),
    phiName_(ptf.phiName_),
    rhoName_(ptf.rhoName_),
    D_(ptf.D_),
    I_(ptf.I_),
    length_(ptf.length_),
    relaxation_(ptf.relaxation_),
    jump0_(ptf.jump0_)
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
void Foam::porousBafflePressureFvPatchField::updateCoeffs()
{
    if (updated())
    {
        return;
    }
 
    if (cyclicPatch().owner())
    {
        const surfaceScalarField& phi =
            db().lookupObject<surfaceScalarField>(phiName_);
 
        const fvsPatchField<scalar>& phip =
            patch().patchField<surfaceScalarField, scalar>(phi);
 
        scalarField Un(phip/patch().magSf());
 
        if (phi.dimensions() == dimMassFlux)
        {
            Un /= patch().lookupPatchField<volScalarField, scalar>(rhoName_);
        }
 
        const scalarField magUn(mag(Un));
 
        const momentumTransportModel& turbModel =
            db().lookupType<momentumTransportModel>(IOobject::group(phiName_));
 
        jumpRef() =
            -sign(Un)
            *(
                D_*turbModel.nu(patch().index())
              + I_*0.5*magUn
             )*magUn*length_;
 
        if (internalField().dimensions() == dimPressure)
        {
            jumpRef() *=
                patch().lookupPatchField<volScalarField, scalar>(rhoName_);
        }
 
        if (relaxation_ < 1)
        {
            jumpRef() += (1 - relaxation_)*(jump0_ - jumpRef());
        }
 
        jump0_ = jumpRef();
 
        if (debug)
        {
            scalar avePressureJump = gAverage(jumpRef());
            scalar aveVelocity = gAverage(mag(Un));
 
            Info<< patch().mesh().name() << ':'
                << patch().name() << ':'
                << " Average pressure drop :" << avePressureJump
                << " Average velocity :" << aveVelocity
                << endl;
        }
    }
 
    fixedJumpFvPatchScalarField::updateCoeffs();
}
 
 
void Foam::porousBafflePressureFvPatchField::write(Ostream& os) const
{
    fixedJumpFvPatchScalarField::write(os);
 
    if (cyclicPatch().owner())
    {
        writeEntryIfDifferent<word>(os, "phi", "phi", phiName_);
        writeEntryIfDifferent<word>(os, "rho", "rho", rhoName_);
        writeEntry(os, "D", D_);
        writeEntry(os, "I", I_);
        writeEntry(os, "length", length_);
        writeEntryIfDifferent(os, "relaxation", scalar(1), relaxation_);
    }
 
    writeEntry(os, "value", *this);
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
    makePatchTypeField
    (
        fvPatchScalarField,
        porousBafflePressureFvPatchField
    );
}
 
 
// ************************************************************************* //