Burns.C

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#include "Burns.H"
#include "phasePair.H"
#include "phaseDynamicMomentumTransportModel.H"
#include "addToRunTimeSelectionTable.H"

#include "dragModel.H"

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

namespace Foam
{
namespace turbulentDispersionModels
{
    defineTypeNameAndDebug(Burns, 0);
    addToRunTimeSelectionTable
    (
        turbulentDispersionModel,
        Burns,
        dictionary
    );
}
}


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

Foam::turbulentDispersionModels::Burns::Burns
(
    const dictionary& dict,
    const phasePair& pair
)
:
    turbulentDispersionModel(dict, pair),
    sigma_("sigma", dimless, dict)
{}


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

Foam::turbulentDispersionModels::Burns::~Burns()
{}


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

Foam::tmp<Foam::volScalarField>
Foam::turbulentDispersionModels::Burns::D() const
{
    const fvMesh& mesh(pair_.phase1().mesh());
    const dragModel& drag =
        mesh.lookupObject<dragModel>
        (
            IOobject::groupName(dragModel::typeName, pair_.name())
        );

    return
        drag.Ki()
       *continuousTurbulence().nut()
       /sigma_
       *pair_.dispersed()
       *sqr(pair_.dispersed() + pair_.continuous())
       /(
            max(pair_.dispersed(), pair_.dispersed().residualAlpha())
           *max(pair_.continuous(), pair_.continuous().residualAlpha())
        );
}


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