GidaspowSchillerNaumann.C

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#include "GidaspowSchillerNaumann.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
namespace dragModels
{
    defineTypeNameAndDebug(GidaspowSchillerNaumann, 0);
    addToRunTimeSelectionTable(dragModel, GidaspowSchillerNaumann, dictionary);
}
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::dragModels::GidaspowSchillerNaumann::GidaspowSchillerNaumann
(
    const dictionary& dict,
    const phaseInterface& interface,
    const bool registerObject
)
:
    dispersedDragModel(dict, interface, registerObject)
{}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
Foam::dragModels::GidaspowSchillerNaumann::~GidaspowSchillerNaumann()
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
Foam::tmp<Foam::volScalarField>
Foam::dragModels::GidaspowSchillerNaumann::CdRe() const
{
    const volScalarField alpha2
    (
        max(interface_.continuous(), interface_.continuous().residualAlpha())
    );
 
    const volScalarField Res(alpha2*interface_.Re());
 
    const volScalarField CdsRes
    (
        neg(Res - 1000)*24*(1.0 + 0.15*pow(Res, 0.687))/alpha2
      + pos0(Res - 1000)*0.44*Res
    );
 
    return CdsRes*pow(alpha2, -1.65);
}
 
 
// ************************************************************************* //