SRIFallOffFunctionI.H

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

inline Foam::SRIFallOffFunction::SRIFallOffFunction
(
    const scalar a,
    const scalar b,
    const scalar c,
    const scalar d,
    const scalar e
)
:
    a_(a),
    b_(b),
    c_(c),
    d_(d),
    e_(e)
{}


inline Foam::SRIFallOffFunction::SRIFallOffFunction(const dictionary& dict)
:
    a_(readScalar(dict.lookup("a"))),
    b_(readScalar(dict.lookup("b"))),
    c_(readScalar(dict.lookup("c"))),
    d_(readScalar(dict.lookup("d"))),
    e_(readScalar(dict.lookup("e")))
{}


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

inline Foam::scalar Foam::SRIFallOffFunction::operator()
(
    const scalar T,
    const scalar Pr
) const
{
    scalar X = 1.0/(1.0 + sqr(log10(max(Pr, SMALL))));
    return d_*pow(a_*exp(-b_/T) + exp(-T/c_), X)*pow(T, e_);
}


inline void Foam::SRIFallOffFunction::write(Ostream& os) const
{
    os.writeKeyword("a") << a_ << token::END_STATEMENT << nl;
    os.writeKeyword("b") << b_ << token::END_STATEMENT << nl;
    os.writeKeyword("c") << c_ << token::END_STATEMENT << nl;
    os.writeKeyword("d") << d_ << token::END_STATEMENT << nl;
    os.writeKeyword("e") << e_ << token::END_STATEMENT << nl;
}


// * * * * * * * * * * * * * * * Ostream Operator  * * * * * * * * * * * * * //

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


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