RanzMarshall.C

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    Copyright (C) 2011-2012 OpenFOAM Foundation
    Copyright (C) 2022 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
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#include "RanzMarshall.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
namespace multiphaseEuler
{
namespace heatTransferModels
{
    defineTypeNameAndDebug(RanzMarshall, 0);
 
    addToRunTimeSelectionTable
    (
        heatTransferModel,
        RanzMarshall,
        dictionary
    );
}
}
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::multiphaseEuler::heatTransferModels::RanzMarshall::RanzMarshall
(
    const dictionary& interfaceDict,
    const volScalarField& alpha1,
    const phaseModel& phase1,
    const phaseModel& phase2
)
:
    heatTransferModel(interfaceDict, alpha1, phase1, phase2)
{}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
Foam::multiphaseEuler::heatTransferModels::RanzMarshall::~RanzMarshall()
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
Foam::tmp<Foam::volScalarField>
Foam::multiphaseEuler::heatTransferModels::RanzMarshall::K
(
    const volScalarField& Ur
) const
{
    volScalarField Re(max(Ur*phase1_.d()/phase2_.nu(), scalar(1.0e-3)));
    dimensionedScalar Prb =
        phase2_.rho()*phase2_.nu()*phase2_.Cp()/phase2_.kappa();
    volScalarField Nu(scalar(2) + 0.6*sqrt(Re)*cbrt(Prb));
 
    return 6.0*phase2_.kappa()*Nu/sqr(phase1_.d());
}
 
 
// ************************************************************************* //