LegendreMagnaudet.C

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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    \\  /    A nd           | Copyright (C) 2014-2015 OpenFOAM Foundation
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#include "LegendreMagnaudet.H"
#include "phasePair.H"
#include "fvcGrad.H"
#include "addToRunTimeSelectionTable.H"

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

namespace Foam
{
namespace liftModels
{
    defineTypeNameAndDebug(LegendreMagnaudet, 0);
    addToRunTimeSelectionTable(liftModel, LegendreMagnaudet, dictionary);
}
}


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

Foam::liftModels::LegendreMagnaudet::LegendreMagnaudet
(
    const dictionary& dict,
    const phasePair& pair
)
:
    liftModel(dict, pair),
    residualRe_("residualRe", dimless, dict)
{}


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

Foam::liftModels::LegendreMagnaudet::~LegendreMagnaudet()
{}


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

Foam::tmp<Foam::volScalarField> Foam::liftModels::LegendreMagnaudet::Cl() const
{
    volScalarField Re(max(pair_.Re(), residualRe_));

    volScalarField Sr
    (
        sqr(pair_.dispersed().d())
       /(
            Re
           *pair_.continuous().nu()
        )
       *mag(fvc::grad(pair_.continuous().U()))
    );

    volScalarField ClLowSqr
    (
        sqr(6.0*2.255)
       *sqr(Sr)
       /(
            pow4(constant::mathematical::pi)
           *Re
           *pow3(Sr + 0.2*Re)
        )
    );

    volScalarField ClHighSqr
    (
        sqr(0.5*(Re + 16.0)/(Re + 29.0))
    );

    return sqrt(ClLowSqr + ClHighSqr);
}


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