coupledFvPatchField.C

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    Copyright (C) 2023-2025 OpenCFD Ltd.
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#include "coupledFvPatchField.H"
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
template<class Type>
Foam::coupledFvPatchField<Type>::coupledFvPatchField
(
    const fvPatch& p,
    const DimensionedField<Type, volMesh>& iF
)
:
    LduInterfaceField<Type>(refCast<const lduInterface>(p)),
    fvPatchField<Type>(p, iF)
{}
 
 
template<class Type>
Foam::coupledFvPatchField<Type>::coupledFvPatchField
(
    const fvPatch& p,
    const DimensionedField<Type, volMesh>& iF,
    const Field<Type>& f
)
:
    LduInterfaceField<Type>(refCast<const lduInterface>(p)),
    fvPatchField<Type>(p, iF, f)
{}
 
 
template<class Type>
Foam::coupledFvPatchField<Type>::coupledFvPatchField
(
    const coupledFvPatchField<Type>& ptf,
    const fvPatch& p,
    const DimensionedField<Type, volMesh>& iF,
    const fvPatchFieldMapper& mapper
)
:
    LduInterfaceField<Type>(refCast<const lduInterface>(p)),
    fvPatchField<Type>(ptf, p, iF, mapper)
{}
 
 
template<class Type>
Foam::coupledFvPatchField<Type>::coupledFvPatchField
(
    const fvPatch& p,
    const DimensionedField<Type, volMesh>& iF,
    const dictionary& dict,
    IOobjectOption::readOption requireValue
)
:
    LduInterfaceField<Type>(refCast<const lduInterface>(p, dict)),
    fvPatchField<Type>(p, iF, dict, requireValue)
{}
 
 
template<class Type>
Foam::coupledFvPatchField<Type>::coupledFvPatchField
(
    const coupledFvPatchField<Type>& ptf
)
:
    LduInterfaceField<Type>(refCast<const lduInterface>(ptf.patch())),
    fvPatchField<Type>(ptf)
{}
 
 
template<class Type>
Foam::coupledFvPatchField<Type>::coupledFvPatchField
(
    const coupledFvPatchField<Type>& ptf,
    const DimensionedField<Type, volMesh>& iF
)
:
    LduInterfaceField<Type>(refCast<const lduInterface>(ptf.patch())),
    fvPatchField<Type>(ptf, iF)
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
template<class Type>
void Foam::coupledFvPatchField<Type>::snGrad
(
    const scalarField& deltaCoeffs,
    UList<Type>& result
) const
{
    // Get patch neighbour field, store temporarily in result
    this->patchNeighbourField(result);
    const auto& pnf = result;
 
    // Same as patchInternalField(...), assuming faceCells are an indirection
    // into internal field, but without additional storage...
    const auto& addr = this->patch().faceCells();
    const auto& iF = this->primitiveField();
 
    // snGrad = deltaCoeffs * (patchNeighbourField - patchInternalField)
 
    const label len = result.size();
 
    for (label i = 0; i < len; ++i)
    {
        result[i] = deltaCoeffs[i]*(pnf[i] - iF[addr[i]]);
    }
}
 
 
template<class Type>
Foam::tmp<Foam::Field<Type>> Foam::coupledFvPatchField<Type>::snGrad
(
    const scalarField& deltaCoeffs
) const
{
    auto tresult = tmp<Field<Type>>::New(this->size());
    this->snGrad(deltaCoeffs, tresult.ref());
    return tresult;
}
 
 
template<class Type>
void Foam::coupledFvPatchField<Type>::initEvaluate(const Pstream::commsTypes)
{
    if (!this->updated())
    {
        this->updateCoeffs();
    }
}
 
 
template<class Type>
void Foam::coupledFvPatchField<Type>::evaluate(const Pstream::commsTypes)
{
    if (!this->updated())
    {
        this->updateCoeffs();
    }
 
    Field<Type>::operator=
    (
        lerp
        (
            this->patchNeighbourField(),
            this->patchInternalField(),
            this->patch().weights()
        )
    );
 
    fvPatchField<Type>::evaluate();
}
 
 
template<class Type>
void Foam::coupledFvPatchField<Type>::valueInternalCoeffs
(
    const tmp<scalarField>& tweights,
    UList<Type>& result
) const
{
    const auto& w = tweights();
 
    const label len = result.size();
 
    for (label i = 0; i < len; ++i)
    {
        result[i] = Type(pTraits<Type>::one)*w[i];
    }
    tweights.clear();
}
 
 
template<class Type>
void Foam::coupledFvPatchField<Type>::valueBoundaryCoeffs
(
    const tmp<scalarField>& tweights,
    UList<Type>& result
) const
{
    const auto& w = tweights();
 
    const label len = result.size();
 
    for (label i = 0; i < len; ++i)
    {
        result[i] = Type(pTraits<Type>::one)*(1.0 - w[i]);
    }
    tweights.clear();
}
 
 
template<class Type>
Foam::tmp<Foam::Field<Type>>
Foam::coupledFvPatchField<Type>::valueInternalCoeffs
(
    const tmp<scalarField>& w
) const
{
    return Type(pTraits<Type>::one)*w;
}
 
 
template<class Type>
Foam::tmp<Foam::Field<Type>>
Foam::coupledFvPatchField<Type>::valueBoundaryCoeffs
(
    const tmp<scalarField>& w
) const
{
    return Type(pTraits<Type>::one)*(1.0 - w);
}
 
 
template<class Type>
void Foam::coupledFvPatchField<Type>::gradientInternalCoeffs
(
    const scalarField& deltaCoeffs,
    UList<Type>& result
) const
{
    const label len = result.size();
 
    for (label i = 0; i < len; ++i)
    {
        result[i] = -Type(pTraits<Type>::one)*deltaCoeffs[i];
    }
}
 
 
template<class Type>
void Foam::coupledFvPatchField<Type>::gradientBoundaryCoeffs
(
    const scalarField& deltaCoeffs,
    UList<Type>& result
) const
{
    const label len = result.size();
 
    for (label i = 0; i < len; ++i)
    {
        result[i] = Type(pTraits<Type>::one)*deltaCoeffs[i];
    }
}
 
 
template<class Type>
Foam::tmp<Foam::Field<Type>>
Foam::coupledFvPatchField<Type>::gradientInternalCoeffs
(
    const scalarField& deltaCoeffs
) const
{
    auto tresult = tmp<Field<Type>>::New(deltaCoeffs.size());
    this->gradientInternalCoeffs(deltaCoeffs, tresult.ref());
    return tresult;
}
 
 
template<class Type>
Foam::tmp<Foam::Field<Type>>
Foam::coupledFvPatchField<Type>::gradientInternalCoeffs() const
{
    NotImplemented;
    return -Type(pTraits<Type>::one)*this->patch().deltaCoeffs();
}
 
 
template<class Type>
void Foam::coupledFvPatchField<Type>::gradientInternalCoeffs
(
    UList<Type>& result
) const
{
    NotImplemented;
    this->gradientInternalCoeffs(this->patch().deltaCoeffs(), result);
}
 
 
template<class Type>
Foam::tmp<Foam::Field<Type>>
Foam::coupledFvPatchField<Type>::gradientBoundaryCoeffs
(
    const scalarField& deltaCoeffs
) const
{
    return -this->gradientInternalCoeffs(deltaCoeffs);
}
 
 
template<class Type>
Foam::tmp<Foam::Field<Type>>
Foam::coupledFvPatchField<Type>::gradientBoundaryCoeffs() const
{
    NotImplemented;
    return -this->gradientInternalCoeffs();
}
 
 
template<class Type>
void Foam::coupledFvPatchField<Type>::gradientBoundaryCoeffs
(
    UList<Type>& result
) const
{
    NotImplemented;
    this->gradientBoundaryCoeffs(this->patch().deltaCoeffs(), result);
}
 
 
template<class Type>
void Foam::coupledFvPatchField<Type>::write(Ostream& os) const
{
    fvPatchField<Type>::write(os);
    fvPatchField<Type>::writeValueEntry(os);
}
 
 
// ************************************************************************* //