mpadapter.hh

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#ifndef DUMUX_MP_ADAPTER_HH
#define DUMUX_MP_ADAPTER_HH
 
#include <algorithm>
#include <cassert>
#include <dumux/common/typetraits/typetraits.hh>
 
namespace Dumux {
 
template <class MaterialLaw, int numPhases>
class MPAdapter
{
    static_assert(AlwaysFalse<MaterialLaw>::value, "Adapter not implemented for the specified number of phases");
};
 
template <class MaterialLaw>
class MPAdapter<MaterialLaw, 2 /*numPhases*/>
{
public:
    using Params = typename MaterialLaw::Params;
    template <class ContainerT, class FluidState>
    static void capillaryPressures(ContainerT &values,
                                   const Params &params,
                                   const FluidState &state,
                                   int wPhaseIdx)
    {
        assert(values.size() == 2);
        const int nPhaseIdx = 1 - wPhaseIdx;
        // non-wetting phase gets the capillary pressure added
        values[nPhaseIdx] = 0;
        // wetting phase does not get anything added
        values[wPhaseIdx] = - MaterialLaw::pc(params, state.saturation(wPhaseIdx));
    }
 
    template <class ContainerT, class FluidState>
    static void relativePermeabilities(ContainerT &values,
                                       const Params &params,
                                       const FluidState &state,
                                       int wPhaseIdx)
    {
        assert(values.size() == 2);
        const int nPhaseIdx = 1 - wPhaseIdx;
        values[wPhaseIdx] = MaterialLaw::krw(params, state.saturation(wPhaseIdx));
        values[nPhaseIdx] = MaterialLaw::krn(params, state.saturation(wPhaseIdx));
    }
};
} // end namespace Dumux
 
#endif