awnsurfaceexpfct.hh

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#ifndef AWN_SURFACE_EXP_FCT_HH
#define AWN_SURFACE_EXP_FCT_HH
 
#include "awnsurfaceexpfctparams.hh"
 
#include <dune/common/exceptions.hh>
 
#include <algorithm>
#include <cmath>
#include <assert.h>
 
#warning "This header is deprecated. Removal after 3.3. Use new material laws."
 
namespace Dumux {
 
template <class ParamsT>
class [[deprecated("Use new material laws and FluidMatrix::InterfacialAreaExponential instead!")]] AwnSurfaceExpFct
{
public:
    using Params = ParamsT;
    using Scalar = typename Params::Scalar;
 
    static Scalar interfacialArea(const Params & params, const Scalar Sw, const Scalar pc)
    {
        const Scalar a1 = params.a1();
        const Scalar a2 = params.a2();
        const Scalar a3 = params.a3();
        const Scalar Swr = params.Swr();
        using std::exp;
        const Scalar aAlphaBeta = a1 * (Swr-Sw) * (1-Sw) + a2 * (Swr-Sw) * (1-Sw) * exp( a3 * pc) ;
        return aAlphaBeta;
    }
 
    static Scalar dawn_dpc (const Params & params, const Scalar Sw, const Scalar pc)
    {
        const Scalar a2 = params.a2();
        const Scalar a3 = params.a3();
        const Scalar Swr = params.Swr();
        using std::exp;
        const Scalar value = a2 * a3 * (Swr-Sw) * (1-Sw) * exp(a3*pc);
        return value;
    }
 
    static Scalar dawn_dsw (const Params & params, const Scalar Sw, const Scalar pc)
    {
        Scalar value;
        Scalar a1 = params.a1();
        Scalar a2 = params.a2();
        Scalar a3 = params.a3();
        Scalar Swr = params.Swr();
        using std::exp;
        value = - a1 *( 1+Swr-2*Sw ) - a2 * exp(a3*pc) * ( 1+Swr-2*Sw );
        return value;
    }
 
};
} // namespace Dumux
 
#endif