freestreamPressureFvPatchScalarField.C

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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    \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.

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    under the terms of the GNU General Public License as published by
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    for more details.

    You should have received a copy of the GNU General Public License
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\*---------------------------------------------------------------------------*/

#include "freestreamPressureFvPatchScalarField.H"
#include "freestreamFvPatchFields.H"
#include "fvPatchFieldMapper.H"
#include "volFields.H"
#include "surfaceFields.H"
#include "addToRunTimeSelectionTable.H"

// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //

Foam::freestreamPressureFvPatchScalarField::
freestreamPressureFvPatchScalarField
(
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF
)
:
    zeroGradientFvPatchScalarField(p, iF),
    UName_("U"),
    phiName_("phi"),
    rhoName_("rho")
{}


Foam::freestreamPressureFvPatchScalarField::
freestreamPressureFvPatchScalarField
(
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF,
    const dictionary& dict
)
:
    zeroGradientFvPatchScalarField(p, iF, dict),
    UName_(dict.lookupOrDefault<word>("U", "U")),
    phiName_(dict.lookupOrDefault<word>("phi", "phi")),
    rhoName_(dict.lookupOrDefault<word>("rho", "rho"))
{}


Foam::freestreamPressureFvPatchScalarField::
freestreamPressureFvPatchScalarField
(
    const freestreamPressureFvPatchScalarField& ptf,
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF,
    const fvPatchFieldMapper& mapper
)
:
    zeroGradientFvPatchScalarField(ptf, p, iF, mapper),
    UName_(ptf.UName_),
    phiName_(ptf.phiName_),
    rhoName_(ptf.rhoName_)
{}


Foam::freestreamPressureFvPatchScalarField::
freestreamPressureFvPatchScalarField
(
    const freestreamPressureFvPatchScalarField& wbppsf
)
:
    zeroGradientFvPatchScalarField(wbppsf),
    UName_(wbppsf.UName_),
    phiName_(wbppsf.phiName_),
    rhoName_(wbppsf.rhoName_)
{}


Foam::freestreamPressureFvPatchScalarField::
freestreamPressureFvPatchScalarField
(
    const freestreamPressureFvPatchScalarField& wbppsf,
    const DimensionedField<scalar, volMesh>& iF
)
:
    zeroGradientFvPatchScalarField(wbppsf, iF),
    UName_(wbppsf.UName_),
    phiName_(wbppsf.phiName_),
    rhoName_(wbppsf.rhoName_)
{}


// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //

void Foam::freestreamPressureFvPatchScalarField::updateCoeffs()
{
    if (updated())
    {
        return;
    }

    const freestreamFvPatchVectorField& Up =
        refCast<const freestreamFvPatchVectorField>
        (
            patch().lookupPatchField<volVectorField, vector>(UName_)
        );

    const surfaceScalarField& phi =
        db().lookupObject<surfaceScalarField>(phiName_);

    fvsPatchField<scalar>& phip =
        const_cast<fvsPatchField<scalar>&>
        (
            patch().patchField<surfaceScalarField, scalar>(phi)
        );

    if (phi.dimensions() == dimVelocity*dimArea)
    {
        phip = patch().Sf() & Up.freestreamValue();
    }
    else if (phi.dimensions() == dimDensity*dimVelocity*dimArea)
    {
        const fvPatchField<scalar>& rhop =
            patch().lookupPatchField<volScalarField, scalar>(rhoName_);

        phip = rhop*(patch().Sf() & Up.freestreamValue());
    }
    else
    {
        FatalErrorInFunction
            << "dimensions of phi are not correct"
            << "\n    on patch " << this->patch().name()
            << " of field " << this->internalField().name()
            << " in file " << this->internalField().objectPath()
            << exit(FatalError);
    }

    zeroGradientFvPatchScalarField::updateCoeffs();
}


void Foam::freestreamPressureFvPatchScalarField::write(Ostream& os) const
{
    fvPatchScalarField::write(os);
    writeEntryIfDifferent<word>(os, "U", "U", UName_);
    writeEntryIfDifferent<word>(os, "phi", "phi", phiName_);
    writeEntryIfDifferent<word>(os, "rho", "rho", rhoName_);
    writeEntry("value", os);
}


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{
    makePatchTypeField
    (
        fvPatchScalarField,
        freestreamPressureFvPatchScalarField
    );
}

// ************************************************************************* //