Gibilaro.C

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    Copyright (C) 2011-2012 OpenFOAM Foundation
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
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#include "Gibilaro.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
namespace dragModels
{
    defineTypeNameAndDebug(Gibilaro, 0);
 
    addToRunTimeSelectionTable
    (
        dragModel,
        Gibilaro,
        dictionary
    );
}
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::dragModels::Gibilaro::Gibilaro
(
    const dictionary& interfaceDict,
    const phaseModel& phase1,
    const phaseModel& phase2
)
:
    dragModel(interfaceDict, phase1, phase2)
{}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
Foam::dragModels::Gibilaro::~Gibilaro()
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
Foam::tmp<Foam::volScalarField> Foam::dragModels::Gibilaro::K
(
    const volScalarField& Ur
) const
{
    volScalarField alpha2(max(phase2_, scalar(1.0e-6)));
    volScalarField bp(pow(alpha2, -2.8));
    volScalarField Re(max(alpha2*Ur*phase1_.d()/phase2_.nu(), scalar(1.0e-3)));
 
    return (17.3/Re + scalar(0.336))*phase2_.rho()*Ur*bp/phase1_.d();
}
 
 
// ************************************************************************* //