DahnekeInterpolation.C

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#include "DahnekeInterpolation.H"
#include "addToRunTimeSelectionTable.H"
#include "BrownianCollisions.H"
#include "ballisticCollisions.H"

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

namespace Foam
{
namespace diameterModels
{
namespace coalescenceModels
{
    defineTypeNameAndDebug(DahnekeInterpolation, 0);
    addToRunTimeSelectionTable
    (
        coalescenceModel,
        DahnekeInterpolation,
        dictionary
    );
}
}
}


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

Foam::diameterModels::coalescenceModels::DahnekeInterpolation::
DahnekeInterpolation
(
    const populationBalanceModel& popBal,
    const dictionary& dict
)
:
    coalescenceModel(popBal, dict),
    Brownian_(new BrownianCollisions(popBal, dict)),
    BrownianRate_
    (
        IOobject
        (
            "BrownianCollisionRate",
            popBal_.mesh().time().timeName(),
            popBal_.mesh()
        ),
        popBal_.mesh(),
        dimensionedScalar("BrownianCollisionRate", dimVolume/dimTime, Zero)
    ),
    ballistic_(new ballisticCollisions(popBal, dict)),
    ballisticRate_
    (
        IOobject
        (
            "ballisticCollisionRate",
            popBal_.mesh().time().timeName(),
            popBal_.mesh()
        ),
        popBal_.mesh(),
        dimensionedScalar("ballisticCollisionRate", dimVolume/dimTime, Zero)
    )
{}


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

void Foam::diameterModels::coalescenceModels::DahnekeInterpolation::precompute()
{
    Brownian_().precompute();
}


void
Foam::diameterModels::coalescenceModels::DahnekeInterpolation::
addToCoalescenceRate
(
    volScalarField& coalescenceRate,
    const label i,
    const label j
)
{
    BrownianRate_ = Zero;
    ballisticRate_ = Zero;

    Brownian_().addToCoalescenceRate(BrownianRate_, i, j);
    ballistic_().addToCoalescenceRate(ballisticRate_, i, j);

    const volScalarField KnD(BrownianRate_/(2*ballisticRate_));

    coalescenceRate += BrownianRate_*(1 + KnD)/(1 + 2*KnD + 2*sqr(KnD));
}


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