turbulentBreakUp.C

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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    \\  /    A nd           | Copyright (C) 2013-2015 OpenFOAM Foundation
     \\/     M anipulation  |
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License
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#include "turbulentBreakUp.H"
#include "addToRunTimeSelectionTable.H"

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

namespace Foam
{
namespace diameterModels
{
namespace IATEsources
{
    defineTypeNameAndDebug(turbulentBreakUp, 0);
    addToRunTimeSelectionTable(IATEsource, turbulentBreakUp, dictionary);
}
}
}


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

Foam::diameterModels::IATEsources::turbulentBreakUp::
turbulentBreakUp
(
    const IATE& iate,
    const dictionary& dict
)
:
    IATEsource(iate),
    Cti_("Cti", dimless, dict),
    WeCr_("WeCr", dimless, dict)
{}


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

Foam::tmp<Foam::volScalarField>
Foam::diameterModels::IATEsources::turbulentBreakUp::R() const
{
    tmp<volScalarField> tR
    (
        new volScalarField
        (
            IOobject
            (
                "R",
                iate_.phase().U().time().timeName(),
                iate_.phase().mesh()
            ),
            iate_.phase().U().mesh(),
            dimensionedScalar("R", dimless/dimTime, 0)
        )
    );

    volScalarField R = tR();

    scalar Cti = Cti_.value();
    scalar WeCr = WeCr_.value();
    volScalarField Ut(this->Ut());
    volScalarField We(this->We());
    const volScalarField& d(iate_.d()());

    forAll(R, celli)
    {
        if (We[celli] > WeCr)
        {
            R[celli] =
                (1.0/3.0)
               *Cti/d[celli]
               *Ut[celli]
               *sqrt(1 - WeCr/We[celli])
               *exp(-WeCr/We[celli]);
        }
    }

    return tR;
}


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