powerSeriesReactionRateI.H

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

inline Foam::powerSeriesReactionRate::powerSeriesReactionRate
(
    const scalar A,
    const scalar beta,
    const scalar Ta,
    const FixedList<scalar, nCoeff_> coeffs
)
:
    A_(A),
    beta_(beta),
    Ta_(Ta),
    coeffs_(coeffs)
{}


inline Foam::powerSeriesReactionRate::powerSeriesReactionRate
(
    const speciesTable&,
    const dictionary& dict
)
:
    A_(dict.lookup<scalar>("A")),
    beta_(dict.lookup<scalar>("beta")),
    Ta_(dict.lookup<scalar>("Ta")),
    coeffs_(dict.lookup("coeffs"))
{}


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

inline Foam::scalar Foam::powerSeriesReactionRate::operator()
(
    const scalar p,
    const scalar T,
    const scalarField&,
    const label
) const
{
    scalar lta = A_;

    if (mag(beta_) > vSmall)
    {
        lta *= pow(T, beta_);
    }

    scalar expArg = 0;

    forAll(coeffs_, n)
    {
        expArg += coeffs_[n]/pow(T, n + 1);
    }

    lta *= exp(expArg);

    return lta;
}


inline Foam::scalar Foam::powerSeriesReactionRate::ddT
(
    const scalar p,
    const scalar T,
    const scalarField&,
    const label
) const
{
    scalar lta = A_;

    if (mag(beta_) > vSmall)
    {
        lta *= pow(T, beta_);
    }

    scalar expArg = 0;
    scalar deriv = 0;

    forAll(coeffs_, n)
    {
        scalar cT = coeffs_[n]/pow(T, n + 1);
        expArg += cT;
        deriv -= (n + 1)*cT;
    }

    lta *= exp(expArg);

    return lta*(beta_+deriv)/T;
}


inline const Foam::List<Foam::Tuple2<Foam::label, Foam::scalar>>&
Foam::powerSeriesReactionRate::beta() const
{
    return NullObjectRef<List<Tuple2<label, scalar>>>();
}


inline void Foam::powerSeriesReactionRate::dcidc
(
    const scalar p,
    const scalar T,
    const scalarField& c,
    const label li,
    scalarField& dcidc
) const
{}


inline Foam::scalar Foam::powerSeriesReactionRate::dcidT
(
    const scalar p,
    const scalar T,
    const scalarField& c,
    const label li
) const
{
    return 0;
}


inline void Foam::powerSeriesReactionRate::write(Ostream& os) const
{
    writeEntry(os, "A", A_);
    writeEntry(os, "beta", beta_);
    writeEntry(os, "Ta", Ta_);
    writeEntry(os, "coeffs", coeffs_);
}


inline Foam::Ostream& Foam::operator<<
(
    Ostream& os,
    const powerSeriesReactionRate& psrr
)
{
    psrr.write(os);
    return os;
}


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