Gunn.C

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#include "Gunn.H"
#include "phasePair.H"
#include "addToRunTimeSelectionTable.H"

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

namespace Foam
{
namespace heatTransferModels
{
    defineTypeNameAndDebug(Gunn, 0);
    addToRunTimeSelectionTable(heatTransferModel, Gunn, dictionary);
}
}


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

Foam::heatTransferModels::Gunn::Gunn
(
    const dictionary& dict,
    const phasePair& pair
)
:
    heatTransferModel(dict, pair)
{}


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

Foam::heatTransferModels::Gunn::~Gunn()
{}


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

Foam::tmp<Foam::volScalarField>
Foam::heatTransferModels::Gunn::K(const scalar residualAlpha) const
{
    const volScalarField alpha2
    (
        max(1 - pair_.dispersed(), pair_.continuous().residualAlpha())
    );

    const volScalarField sqrAlpha2(sqr(alpha2));

    const volScalarField Nu
    (
        (7 - 10*alpha2 + 5*sqrAlpha2)
       *(1 + 0.7*pow(pair_.Re(), 0.2)*cbrt(pair_.Pr()))
      + (1.33 - 2.4*alpha2 + 1.2*sqrAlpha2)
       *pow(pair_.Re(), 0.7)*cbrt(pair_.Pr())
    );

    return
        6*max(pair_.dispersed(), residualAlpha)
       *pair_.continuous().thermo().kappa()
       *Nu/sqr(pair_.dispersed().d());
}


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