fixedGradientFvPatchField.C

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#include "fixedGradientFvPatchField.H"
#include "dictionary.H"

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

template<class Type>
Foam::fixedGradientFvPatchField<Type>::fixedGradientFvPatchField
(
    const fvPatch& p,
    const DimensionedField<Type, volMesh>& iF
)
:
    fvPatchField<Type>(p, iF),
    gradient_(p.size(), Zero)
{}


template<class Type>
Foam::fixedGradientFvPatchField<Type>::fixedGradientFvPatchField
(
    const fvPatch& p,
    const DimensionedField<Type, volMesh>& iF,
    const dictionary& dict,
    const bool gradientRequired
)
:
    fvPatchField<Type>(p, iF, dict, false),
    gradient_(p.size())
{
    if (gradientRequired)
    {
        if (dict.found("gradient"))
        {
            gradient_ = Field<Type>("gradient", dict, p.size());
            evaluate();
        }
        else
        {
            FatalIOErrorInFunction(dict)
                << "Essential entry 'gradient' missing"
                << exit(FatalIOError);
        }
    }
}


template<class Type>
Foam::fixedGradientFvPatchField<Type>::fixedGradientFvPatchField
(
    const fixedGradientFvPatchField<Type>& ptf,
    const fvPatch& p,
    const DimensionedField<Type, volMesh>& iF,
    const fvPatchFieldMapper& mapper,
    const bool mappingRequired
)
:
    fvPatchField<Type>(ptf, p, iF, mapper, mappingRequired),
    gradient_(p.size())
{
    if (mappingRequired)
    {
        // For unmapped faces set to internal field value (zero-gradient)
        if (mapper.hasUnmapped())
        {
            gradient_ = Zero;
        }
        mapper(gradient_, ptf);
    }
}


template<class Type>
Foam::fixedGradientFvPatchField<Type>::fixedGradientFvPatchField
(
    const fixedGradientFvPatchField<Type>& ptf,
    const DimensionedField<Type, volMesh>& iF
)
:
    fvPatchField<Type>(ptf, iF),
    gradient_(ptf.gradient_)
{}


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

template<class Type>
void Foam::fixedGradientFvPatchField<Type>::autoMap
(
    const fvPatchFieldMapper& m
)
{
    fvPatchField<Type>::autoMap(m);
    m(gradient_, gradient_);
}


template<class Type>
void Foam::fixedGradientFvPatchField<Type>::rmap
(
    const fvPatchField<Type>& ptf,
    const labelList& addr
)
{
    fvPatchField<Type>::rmap(ptf, addr);

    const fixedGradientFvPatchField<Type>& fgptf =
        refCast<const fixedGradientFvPatchField<Type>>(ptf);

    gradient_.rmap(fgptf.gradient_, addr);
}


template<class Type>
void Foam::fixedGradientFvPatchField<Type>::evaluate(const Pstream::commsTypes)
{
    if (!this->updated())
    {
        this->updateCoeffs();
    }

    Field<Type>::operator=
    (
        this->patchInternalField() + gradient_/this->patch().deltaCoeffs()
    );

    fvPatchField<Type>::evaluate();
}


template<class Type>
Foam::tmp<Foam::Field<Type>>
Foam::fixedGradientFvPatchField<Type>::valueInternalCoeffs
(
    const tmp<scalarField>&
) const
{
    return tmp<Field<Type>>(new Field<Type>(this->size(), pTraits<Type>::one));
}


template<class Type>
Foam::tmp<Foam::Field<Type>>
Foam::fixedGradientFvPatchField<Type>::valueBoundaryCoeffs
(
    const tmp<scalarField>&
) const
{
    return gradient()/this->patch().deltaCoeffs();
}


template<class Type>
Foam::tmp<Foam::Field<Type>>
Foam::fixedGradientFvPatchField<Type>::gradientInternalCoeffs() const
{
    return tmp<Field<Type>>
    (
        new Field<Type>(this->size(), Zero)
    );
}


template<class Type>
Foam::tmp<Foam::Field<Type>>
Foam::fixedGradientFvPatchField<Type>::gradientBoundaryCoeffs() const
{
    return gradient();
}


template<class Type>
void Foam::fixedGradientFvPatchField<Type>::write(Ostream& os) const
{
    fvPatchField<Type>::write(os);
    writeEntry(os, "gradient", gradient_);
}


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