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                    \\     ||  | Multiphase Code Repository by HZDR
  ======   //   ||  || ===//   | Website: https://doi.org/10.14278/rodare.767
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License
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    Website: https://hzdr.de

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#include "LegendreMagnaudet.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 phaseInterface& interface
)
:
    dispersedLiftModel(dict, interface),
    residualRe_("residualRe", dimless, dict)
{}


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

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


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

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

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

    const volScalarField ClLowSqr
    (
        sqr(6*2.255)*sqr(Sr)
       /(pow4(constant::mathematical::pi)*Re*pow3(Sr + 0.2*Re))
    );

    const volScalarField ClHighSqr(sqr(0.5*(Re + 16)/(Re + 29)));

    return sqrt(ClLowSqr + ClHighSqr);
}


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