vanLeer.H

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Class
    Foam::vanLeerLimiter

Description
    Class with limiter function which returns the limiter for the
    vanLeer differencing scheme based on r obtained from the LimiterFunc
    class.

    Used in conjunction with the template class LimitedScheme.

SourceFiles
    vanLeer.C

\*---------------------------------------------------------------------------*/

#ifndef vanLeer_H
#define vanLeer_H

#include "vector.H"

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namespace Foam
{

/*---------------------------------------------------------------------------*\
                           Class vanLeerLimiter Declaration
\*---------------------------------------------------------------------------*/

template<class LimiterFunc>
class vanLeerLimiter
:
    public LimiterFunc
{

public:

    vanLeerLimiter(Istream&)
    {}

    scalar limiter
    (
        const scalar,
        const scalar faceFlux,
        const typename LimiterFunc::phiType& phiP,
        const typename LimiterFunc::phiType& phiN,
        const typename LimiterFunc::gradPhiType& gradcP,
        const typename LimiterFunc::gradPhiType& gradcN,
        const vector& d
    ) const
    {
        scalar r = LimiterFunc::r
        (
            faceFlux, phiP, phiN, gradcP, gradcN, d
        );

        return (r + mag(r))/(1 + mag(r));
    }
};


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} // End namespace Foam

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

#endif

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