variable.C

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#include "variable.H"
#include "thermophysicalTransportModel.H"
#include "zeroGradientFvPatchFields.H"
#include "addToRunTimeSelectionTable.H"

// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //

namespace Foam
{
namespace fv
{
namespace heatTransferModels
{
    defineTypeNameAndDebug(variable, 0);
    addToRunTimeSelectionTable(heatTransferModel, variable, mesh);
    addToRunTimeSelectionTable(heatTransferModel, variable, model);
}
}
}


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

void Foam::fv::heatTransferModels::variable::readCoeffs()
{
    UName_ = coeffs().lookupOrDefault<word>("U", "U");

    a_ = coeffs().lookup<scalar>("a");
    b_ = coeffs().lookup<scalar>("b");
    c_ = coeffs().lookup<scalar>("c");
    L_ = dimensionedScalar("L", dimLength, coeffs());
    Pr_ = dimensionedScalar("Pr", dimless, coeffs());
}


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

Foam::fv::heatTransferModels::variable::variable
(
    const dictionary& dict,
    const fvMesh& mesh
)
:
    heatTransferModel(typeName, dict, mesh),
    UName_(word::null),
    a_(NaN),
    b_(NaN),
    c_(NaN),
    L_("L", dimLength, NaN),
    Pr_("Pr", dimless, NaN),
    htc_
    (
        IOobject
        (
            type() + ":htc",
            mesh.time().timeName(),
            mesh,
            IOobject::NO_READ,
            IOobject::NO_WRITE
        ),
        mesh,
        dimensionedScalar(dimPower/dimTemperature/dimArea, 0),
        zeroGradientFvPatchScalarField::typeName
    )
{
    readCoeffs();
}


Foam::fv::heatTransferModels::variable::variable
(
    const dictionary& dict,
    const interRegionModel& model
)
:
    variable(dict, model.mesh())
{
    readCoeffs();
}


// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //

Foam::fv::heatTransferModels::variable::~variable()
{}


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

void Foam::fv::heatTransferModels::variable::correct()
{
    const thermophysicalTransportModel& ttm =
        mesh().lookupObject<thermophysicalTransportModel>
        (
            thermophysicalTransportModel::typeName
        );
    const compressibleMomentumTransportModel& mtm =
        ttm.momentumTransport();

    const volVectorField& U =
        mesh().lookupObject<volVectorField>(UName_);

    const volScalarField Re(mag(U)*L_/mtm.nuEff());
    const volScalarField Nu(a_*pow(Re, b_)*pow(Pr_, c_));

    htc_ = Nu*ttm.kappaEff()/L_;
    htc_.correctBoundaryConditions();
}


bool Foam::fv::heatTransferModels::variable::read(const dictionary& dict)
{
    if (heatTransferModel::read(dict))
    {
        readCoeffs();
        return true;
    }
    else
    {
        return false;
    }
}


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