populationBalance.C

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License
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#include "populationBalance.H"
#include "addToRunTimeSelectionTable.H"
#include "populationBalanceModel.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
namespace diameterModels
{
    defineTypeNameAndDebug(populationBalance, 0);
    addToRunTimeSelectionTable(diameterModel, populationBalance, dictionary);
 
    // Backwards compatible lookup as "velocityGroup"
    addNamedToRunTimeSelectionTable
    (
        diameterModel,
        populationBalance,
        dictionary,
        velocityGroup
    );
}
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::diameterModels::populationBalance::populationBalance
(
    const dictionary& diameterProperties,
    const phaseModel& phase
)
:
    diameterModel(diameterProperties, phase),
    popBalName_(diameterProperties.lookup("populationBalance")),
    popBalPtr_(nullptr),
    nGroups_(diameterProperties.lookup<label>("nGroups")),
    iFirst_(-1),
    d_
    (
        IOobject
        (
            IOobject::groupName("d", phase.name()),
            phase.time().name(),
            phase.mesh(),
            IOobject::NO_READ,
            IOobject::AUTO_WRITE
        ),
        phase.mesh(),
        dimensionedScalar("d", dimLength, NaN)
    )
{}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
Foam::diameterModels::populationBalance::~populationBalance()
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
const Foam::populationBalanceModel&
Foam::diameterModels::populationBalance::popBal() const
{
    if (popBalPtr_ == nullptr)
    {
        popBalPtr_ =
            &phase().mesh().lookupObject<populationBalanceModel>(popBalName_);
    }
 
    return *popBalPtr_;
}
 
 
Foam::label Foam::diameterModels::populationBalance::iFirst() const
{
    if (iFirst_ == -1)
    {
        const UPtrList<const populationBalance>& uniqueDiameters =
            popBal().uniqueDiameters();
 
        // Determine the unique phase index within the population balance
        label uniquePhasei = -1;
        forAll(uniqueDiameters, uniquePhasej)
        {
            if (&uniqueDiameters[uniquePhasej] == this)
            {
                uniquePhasei = uniquePhasej;
                break;
            }
        }
 
        // If this is the first unique phase, then the first group of this
        // phase is the first of the entire population balance. Otherwise it is
        // the group immediately after those in the previous unique phase.
        iFirst_ =
            uniquePhasei == 0
          ? 0
          : uniqueDiameters[uniquePhasei - 1].iLast() + 1;
    }
 
    return iFirst_;
}
 
 
Foam::tmp<Foam::volScalarField>
Foam::diameterModels::populationBalance::d() const
{
    return d_;
}
 
 
Foam::tmp<Foam::volScalarField>
Foam::diameterModels::populationBalance::Av() const
{
    tmp<volScalarField> tsumFiAbyV
    (
        volScalarField::New
        (
            "sumFiAbyV",
            phase().mesh(),
            dimensionedScalar(inv(dimLength), Zero)
        )
    );
    volScalarField& sumFiAbyV = tsumFiAbyV.ref();
 
    const populationBalanceModel& popBal = this->popBal();
 
    for (label i = iFirst(); i <= iLast(); ++ i)
    {
        sumFiAbyV += popBal.f(i)*popBal.a(i)/popBal.v(i);
    }
 
    return phase()*tsumFiAbyV;
}
 
 
Foam::tmp<Foam::volScalarField::Internal>
Foam::diameterModels::populationBalance::fSum() const
{
    tmp<volScalarField::Internal> tsumFi =
        volScalarField::Internal::New
        (
            "sumFi",
            phase().mesh(),
            dimensionedScalar(dimless, 0)
        );
    volScalarField::Internal& sumFi = tsumFi.ref();
 
    const populationBalanceModel& popBal = this->popBal();
 
    for (label i = iFirst(); i <= iLast(); ++ i)
    {
        sumFi += popBal.f(i)();
    }
 
    return tsumFi;
}
 
 
void Foam::diameterModels::populationBalance::correct()
{
    const populationBalanceModel& popBal = this->popBal();
 
    if (popBal.solveOnFinalIterOnly() && !popBal.fluid().pimple().finalIter())
    {
        return;
    }
 
    tmp<volScalarField> tsumFi
    (
        volScalarField::New
        (
            "sumFi",
            phase().mesh(),
            dimensionedScalar(dimless, Zero)
        )
    );
    tmp<volScalarField> tsumFiAbyV
    (
        volScalarField::New
        (
            "sumFiAbyV",
            phase().mesh(),
            dimensionedScalar(inv(dimLength), Zero)
        )
    );
    volScalarField& sumFi = tsumFi.ref();
    volScalarField& sumFiAbyV = tsumFiAbyV.ref();
 
    for (label i = iFirst(); i <= iLast(); ++ i)
    {
        sumFi += max(popBal.f(i), rootVSmall);
        sumFiAbyV += max(popBal.f(i), rootVSmall)*popBal.a(i)/popBal.v(i);
    }
 
    d_ = 6*sumFi/tsumFiAbyV;
 
    Info<< indent << phase().name() << " min/Sauter-mean/max diameter = "
        << min(d_).value() << '/' << d_.weightedAverage(d_.mesh().V()).value()
        << '/' << max(d_).value() << endl;
}
 
 
bool Foam::diameterModels::populationBalance::read
(
    const dictionary& diameterProperties
)
{
    return true;
}
 
 
// ************************************************************************* //