linearmaterial.hh

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#ifndef LINEAR_MATERIAL_HH
#define LINEAR_MATERIAL_HH
 
#include "linearmaterialparams.hh"
 
#include <algorithm>
 
namespace Dumux {
 
template <class ScalarT, class ParamsT = LinearMaterialParams<ScalarT> >
class LinearMaterial
{
public:
    using Params = ParamsT;
    using Scalar = typename Params::Scalar;
 
    static Scalar pc(const Params &params, Scalar swe)
    {
        return (1 - swe)*(params.maxPc() - params.entryPc()) + params.entryPc();
    }
 
    static Scalar sw(const Params &params, Scalar pc)
    {
        return 1 - (pc - params.entryPc())/(params.maxPc() - params.entryPc());
    }
 
    static Scalar endPointPc(const Params &params)
    { return params.entryPc(); }
 
    static Scalar dpc_dswe(const Params &params, Scalar swe)
    {
        return - (params.maxPc() - params.entryPc());
    }
 
    static Scalar dsw_dpc(const Params &params, Scalar pc)
    {
        return - 1/(params.maxPc() - params.entryPc());
    }
 
    static Scalar krw(const Params &params, Scalar swe)
    {
        using std::max;
        using std::min;
        return max(min(swe,1.0),0.0);
    }
 
    static Scalar krn(const Params &params, Scalar swe)
    {
        Scalar sne = 1 - swe;
        using std::max;
        using std::min;
        return max(min(sne,1.0),0.0);
    }
};
} // end namespace Dumux
 
#endif