aerosolDrag.C

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#include "aerosolDrag.H"
#include "phasePair.H"
#include "swarmCorrection.H"
#include "addToRunTimeSelectionTable.H"
#include "constants.H"

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

namespace Foam
{
namespace dragModels
{
    defineTypeNameAndDebug(aerosolDrag, 0);
    addToRunTimeSelectionTable(dragModel, aerosolDrag, dictionary);
}
}

using Foam::constant::physicoChemical::k;
using Foam::constant::mathematical::pi;


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

Foam::dragModels::aerosolDrag::aerosolDrag
(
    const dictionary& dict,
    const phasePair& pair,
    const bool registerObject
)
:
    dragModel(dict, pair, registerObject),
    A1_(dict.lookupOrDefault<scalar>("A1", 2.514)),
    A2_(dict.lookupOrDefault<scalar>("A2", 0.8)),
    A3_(dict.lookupOrDefault<scalar>("A3", 0.55)),
    sigma_("sigma", dimLength, dict)
{}


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

Foam::dragModels::aerosolDrag::~aerosolDrag()
{}


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

Foam::tmp<Foam::volScalarField> Foam::dragModels::aerosolDrag::CdRe() const
{
    const volScalarField& T = pair_.continuous().thermo().T();
    const volScalarField& p = pair_.continuous().thermo().p();
    tmp<volScalarField> td(pair_.dispersed().d());
    const volScalarField& d = td();

    const volScalarField lambda(k*T/(sqrt(2.0)*pi*p*sqr(sigma_)));

    return 24/(1 + lambda/d*(A1_ + A2_*exp(-A3_*d/lambda)));
}


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