egrMixture.C

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#include "egrMixture.H"
#include <finiteVolume/fvMesh.H>

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

template<class ThermoType>
const char* Foam::egrMixture<ThermoType>::specieNames_[3] = {"ft", "bprog", "egr"};


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

template<class ThermoType>
Foam::egrMixture<ThermoType>::egrMixture
(
    const dictionary& thermoDict,
    const fvMesh& mesh
)
:
    basicMultiComponentMixture
    (
        thermoDict,
        speciesTable(nSpecies_, specieNames_),
        mesh
    ),

    stoicRatio_(thermoDict.lookup("stoichiometricAirFuelMassRatio")),

    fuel_(thermoDict.lookup("fuel")),
    oxidant_(thermoDict.lookup("oxidant")),
    products_(thermoDict.lookup("burntProducts")),

    mixture_("mixture", fuel_),

    ft_(Y("ft")),
    b_(Y("bprog")),
    egr_(Y("egr"))
{}


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

template<class ThermoType>
const ThermoType& Foam::egrMixture<ThermoType>::mixture
(
    const scalar ft,
    const scalar b,
    const scalar egr
) const
{
    if (ft < 0.0001)
    {
        return oxidant_;
    }
    else
    {

        scalar fu = b*ft + (1.0 - b)*fres(ft, stoicRatio().value());
        scalar ox = 1 - ft - (ft - fu)*stoicRatio().value();

        fu *= (1.0 - egr);
        ox *= (1.0 - egr);

        scalar pr = 1 - fu - ox;

        mixture_ = fu/fuel_.W()*fuel_;
        mixture_ += ox/oxidant_.W()*oxidant_;
        mixture_ += pr/products_.W()*products_;

        return mixture_;
    }
}


template<class ThermoType>
void Foam::egrMixture<ThermoType>::read(const dictionary& thermoDict)
{
    stoicRatio_ = thermoDict.lookup("stoichiometricAirFuelMassRatio");

    fuel_ = ThermoType(thermoDict.lookup("fuel"));
    oxidant_ = ThermoType(thermoDict.lookup("oxidant"));
    products_ = ThermoType(thermoDict.lookup("burntProducts"));
}


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