freestreamVelocityFvPatchVectorField.C

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License
    This file is part of OpenFOAM.
 
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#include "freestreamVelocityFvPatchVectorField.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::freestreamVelocityFvPatchVectorField::freestreamVelocityFvPatchVectorField
(
    const fvPatch& p,
    const DimensionedField<vector, volMesh>& iF,
    const dictionary& dict
)
:
    mixedFvPatchVectorField(p, iF, dict, false)
{
    freestreamValue() =
        vectorField("freestreamValue", dimVelocity, dict, p.size());
 
    if (dict.found("value"))
    {
        fvPatchVectorField::operator=
        (
            vectorField("value", iF.dimensions(), dict, p.size())
        );
    }
    else
    {
        fvPatchVectorField::operator=(freestreamValue());
    }
 
    refGrad() = Zero;
    valueFraction() = 1;
}
 
 
Foam::freestreamVelocityFvPatchVectorField::freestreamVelocityFvPatchVectorField
(
    const freestreamVelocityFvPatchVectorField& ptf,
    const fvPatch& p,
    const DimensionedField<vector, volMesh>& iF,
    const fieldMapper& mapper
)
:
    mixedFvPatchVectorField(ptf, p, iF, mapper)
{}
 
 
Foam::freestreamVelocityFvPatchVectorField::freestreamVelocityFvPatchVectorField
(
    const freestreamVelocityFvPatchVectorField& wbppsf,
    const DimensionedField<vector, volMesh>& iF
)
:
    mixedFvPatchVectorField(wbppsf, iF)
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
void Foam::freestreamVelocityFvPatchVectorField::updateCoeffs()
{
    if (updated())
    {
        return;
    }
 
    const Field<vector> Up(0.5*(patchInternalField() + *this));
    const Field<scalar> magUp(mag(Up));
 
    const Field<vector> nf(patch().nf());
 
    Field<scalar>& vf = valueFraction();
 
    forAll(vf, i)
    {
        if (magUp[i] > vSmall)
        {
            vf[i] = 0.5 - 0.5*(Up[i] & nf[i])/magUp[i];
        }
        else
        {
            vf[i] = 0.5;
        }
    }
 
    mixedFvPatchField<vector>::updateCoeffs();
}
 
 
void Foam::freestreamVelocityFvPatchVectorField::write(Ostream& os) const
{
    fvPatchVectorField::write(os);
    writeEntry(os, "freestreamValue", freestreamValue());
    writeEntry(os, "value", *this);
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
    makePatchTypeField
    (
        fvPatchVectorField,
        freestreamVelocityFvPatchVectorField
    );
}
 
// ************************************************************************* //