Moraga.C

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    Copyright (C) 2014-2018 OpenFOAM Foundation
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
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#include "Moraga.H"
#include "phasePair.H"
#include "fvcGrad.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
namespace liftModels
{
    defineTypeNameAndDebug(Moraga, 0);
    addToRunTimeSelectionTable(liftModel, Moraga, dictionary);
}
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::liftModels::Moraga::Moraga
(
    const dictionary& dict,
    const phasePair& pair
)
:
    liftModel(dict, pair)
{}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
Foam::liftModels::Moraga::~Moraga()
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
Foam::tmp<Foam::volScalarField> Foam::liftModels::Moraga::Cl() const
{
    volScalarField Re(pair_.Re());
 
    volScalarField sqrSr
    (
        sqr(pair_.dispersed().d())
       /pair_.continuous().nu()
       *mag(fvc::grad(pair_.continuous().U()))
    );
 
    if
    (
        min(Re).value() < 1200.0
     || max(Re).value() > 18800.0
     || min(sqrSr).value() < 0.0016
     || max(sqrSr).value() > 0.04
    )
    {
        WarningInFunction
            << "Re and/or Sr are out of the range of applicability of the "
            << "Moraga model. Clamping to range bounds"
            << endl;
    }
 
    Re.clamp_range(1200.0, 18800.0);
    sqrSr.clamp_range(0.0016, 0.04);
 
    return 0.2*exp(- Re*sqrSr/3.6e5 - 0.12)*exp(Re*sqrSr/3.0e7);
}
 
 
// ************************************************************************* //