freestreamPressureFvPatchScalarField.C

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/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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    \\  /    A nd           | Copyright (C) 1991-2010 OpenCFD Ltd.
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-------------------------------------------------------------------------------
License
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#include "freestreamPressureFvPatchScalarField.H"
#include <finiteVolume/freestreamFvPatchFields.H>
#include <finiteVolume/fvPatchFieldMapper.H>
#include <finiteVolume/volFields.H>
#include <finiteVolume/surfaceFields.H>
#include <OpenFOAM/addToRunTimeSelectionTable.H>

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

namespace Foam
{

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

freestreamPressureFvPatchScalarField::freestreamPressureFvPatchScalarField
(
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF
)
:
    zeroGradientFvPatchScalarField(p, iF)
{}


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


freestreamPressureFvPatchScalarField::freestreamPressureFvPatchScalarField
(
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF,
    const dictionary& dict
)
:
    zeroGradientFvPatchScalarField(p, iF, dict)
{}


freestreamPressureFvPatchScalarField::freestreamPressureFvPatchScalarField
(
    const freestreamPressureFvPatchScalarField& wbppsf
)
:
    zeroGradientFvPatchScalarField(wbppsf)
{}


freestreamPressureFvPatchScalarField::freestreamPressureFvPatchScalarField
(
    const freestreamPressureFvPatchScalarField& wbppsf,
    const DimensionedField<scalar, volMesh>& iF
)
:
    zeroGradientFvPatchScalarField(wbppsf, iF)
{}


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

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

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

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

    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>("rho");

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

    zeroGradientFvPatchScalarField::updateCoeffs();
}


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

makePatchTypeField(fvPatchScalarField, freestreamPressureFvPatchScalarField);

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

} // End namespace Foam

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