jouleHeatingSourceTemplates.C

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    Copyright (C) 2019-2024 OpenCFD Ltd.
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License
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#include "emptyFaPatch.H"

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

template<class Type>
void Foam::fa::jouleHeatingSource::initialiseSigma
(
    const dictionary& dict,
    autoPtr<Function1<Type>>& sigmaVsTPtr
)
{
    typedef GeometricField<Type, faPatchField, areaMesh> FieldType;

    auto& obr = regionMesh().thisDb();

    IOobject io
    (
        IOobject::scopedName(typeName, "sigma_" + regionName_),
        obr.time().timeName(),
        obr,
        IOobject::NO_READ,
        IOobject::AUTO_WRITE,
        IOobject::REGISTER
    );

    autoPtr<FieldType> tsigma;

    if (dict.found("sigma"))
    {
        // Sigma to be defined using a Function1 type
        sigmaVsTPtr = Function1<Type>::New("sigma", dict, &mesh_);

        tsigma.reset
        (
            new FieldType
            (
                io,
                regionMesh(),
                Foam::zero{},  // value
                sqr(dimCurrent)/dimPower/dimLength
            )
        );

        Info<< "    Conductivity 'sigma' read from dictionary as f(T)"
            << nl << endl;
    }
    else
    {
        // Sigma to be defined by user input
        io.readOpt(IOobject::MUST_READ);

        tsigma.reset(new FieldType(io, regionMesh()));

        Info<< "    Conductivity 'sigma' read from file" << nl << endl;
    }

    regIOobject::store(tsigma);
}


template<class Type>
const Foam::GeometricField<Type, Foam::faPatchField, Foam::areaMesh>&
Foam::fa::jouleHeatingSource::updateSigma
(
    const autoPtr<Function1<Type>>& sigmaVsTPtr
) const
{
    typedef GeometricField<Type, faPatchField, areaMesh> FieldType;

    const auto& obr = regionMesh().thisDb();

    auto& sigma =
        obr.lookupObjectRef<FieldType>
        (
            IOobject::scopedName(typeName, "sigma_" + regionName_)
        );

    if (!sigmaVsTPtr)
    {
        // Electrical conductivity field, sigma, was specified by the user
        return sigma;
    }

    const auto& T = obr.lookupObject<areaScalarField>(TName_);

    // Internal field
    forAll(sigma, i)
    {
        sigma[i] = sigmaVsTPtr->value(T[i]);
    }


    // Boundary field
    auto& bf = sigma.boundaryFieldRef();
    forAll(bf, patchi)
    {
        faPatchField<Type>& pf = bf[patchi];
        if (!isA<emptyFaPatch>(pf))
        {
            const scalarField& Tbf = T.boundaryField()[patchi];
            forAll(pf, facei)
            {
                pf[facei] = sigmaVsTPtr->value(Tbf[facei]);
            }
        }
    }

    // Update processor patches
    sigma.correctBoundaryConditions();

    return sigma;
}


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