integratedNonUniformTable1.C

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#include "integratedNonUniformTable1.H"
#include "specie.H"
#include "addToRunTimeSelectionTable.H"

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

namespace Foam
{
namespace Function1s
{
    makeScalarFunction1(integratedNonUniformTable)
}
}


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

Foam::Function1s::integratedNonUniformTable::integratedNonUniformTable
(
    const word& name,
    const dictionary& dict
)
:
    NonUniformTable<scalar>(name, dict),
    intf_(values().size()),
    intfByT_(values().size())
{
    intf_[0] = 0;
    intfByT_[0] = 0;

    for(label i = 0; i<intf_.size() - 1; i++)
    {
        intf_[i + 1] = intf_[i] + intfdT(values()[i + 1].first());
        intfByT_[i + 1] = intfByT_[i] + intfByTdT(values()[i + 1].first());
    }

    const scalar intfStd = intfdT(Tstd);
    const scalar intfByTStd = intfByTdT(Tstd);

    forAll(intf_, i)
    {
        intf_[i] -= intfStd;
        intfByT_[i] -= intfByTStd;
    }
}


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

Foam::scalar Foam::Function1s::integratedNonUniformTable::intfdT
(
    scalar T
) const
{
    const label i = index(T);
    const scalar Ti = values()[i].first();
    const scalar fi = values()[i].second();
    const scalar dT = T - Ti;
    const scalar lambda = dT/(values()[i + 1].first() - Ti);

    return
        intf_[i]
      + (fi + 0.5*lambda*(values()[i + 1].second() - fi))*dT;
}


Foam::scalar Foam::Function1s::integratedNonUniformTable::intfByTdT
(
    scalar T
) const
{
    const label i = index(T);
    const scalar Ti = values()[i].first();
    const scalar fi = values()[i].second();
    const scalar gradf =
        (values()[i + 1].second() - fi)/(values()[i + 1].first() - Ti);

    return
        intfByT_[i] + ((fi - gradf*Ti)*log(T/Ti) + gradf*(T - Ti));
}


void Foam::Function1s::integratedNonUniformTable::write
(
    Ostream& os
) const
{
    NonUniformTable<scalar>::write(os);
}


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