fvporousmediumspatialparams.hh

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#ifndef DUMUX_POROUS_MEDIUM_FV_SPATIAL_PARAMS_HH
#define DUMUX_POROUS_MEDIUM_FV_SPATIAL_PARAMS_HH
 
#include <dumux/common/fvspatialparams.hh>
#include <dumux/common/typetraits/isvalid.hh>
 
namespace Dumux {
 
#ifndef DOXYGEN
namespace Detail {
template<class GlobalPosition, class SolidSystem>
struct hasInertVolumeFractionAtPos
{
    template<class SpatialParams>
    auto operator()(const SpatialParams& a)
    -> decltype(a.template inertVolumeFractionAtPos<SolidSystem>(std::declval<GlobalPosition>(), 0))
    {}
};
 
template<class GlobalPosition>
struct hasPorosityAtPos
{
    template<class SpatialParams>
    auto operator()(const SpatialParams& a)
    -> decltype(a.porosityAtPos(std::declval<GlobalPosition>()))
    {}
};
} // end namespace Detail
#endif
 
template<class GridGeometry, class Scalar, class Implementation>
class FVPorousMediumSpatialParams
: public FVSpatialParams<GridGeometry, Scalar, Implementation>
{
    using ParentType = FVSpatialParams<GridGeometry, Scalar, Implementation>;
    using GridView = typename GridGeometry::GridView;
    using FVElementGeometry = typename GridGeometry::LocalView;
    using SubControlVolume = typename GridGeometry::SubControlVolume;
    using Element = typename GridView::template Codim<0>::Entity;
    using GlobalPosition = typename Element::Geometry::GlobalCoordinate;
 
public:
    FVPorousMediumSpatialParams(std::shared_ptr<const GridGeometry> gridGeometry)
    : ParentType(gridGeometry)
    {}
 
    template<class ElementSolution>
    Scalar porosity(const Element& element,
                    const SubControlVolume& scv,
                    const ElementSolution& elemSol) const
    {
        static_assert(decltype(isValid(Detail::hasPorosityAtPos<GlobalPosition>())(this->asImp_()))::value," \n\n"
        "   Your spatial params class has to either implement\n\n"
        "         Scalar porosityAtPos(const GlobalPosition& globalPos) const\n\n"
        "   or overload this function\n\n"
        "         template<class ElementSolution>\n"
        "         Scalar porosity(const Element& element,\n"
        "                         const SubControlVolume& scv,\n"
        "                         const ElementSolution& elemSol) const\n\n");
 
        return this->asImp_().porosityAtPos(scv.center());
    }
 
    template<class SolidSystem, class ElementSolution,
             typename std::enable_if_t<SolidSystem::isInert()
                                       && SolidSystem::numInertComponents == 1
                                       && !decltype(isValid(Detail::hasInertVolumeFractionAtPos<GlobalPosition, SolidSystem>())(std::declval<Implementation>()))::value,
                                       int> = 0>
    Scalar inertVolumeFraction(const Element& element,
                               const SubControlVolume& scv,
                               const ElementSolution& elemSol,
                               int compIdx) const
    {
        return 1.0 - this->asImp_().porosity(element, scv, elemSol);
    }
 
    // specialization if there are no inert components at all
    template<class SolidSystem, class ElementSolution,
             typename std::enable_if_t<SolidSystem::numInertComponents == 0, int> = 0>
    Scalar inertVolumeFraction(const Element& element,
                               const SubControlVolume& scv,
                               const ElementSolution& elemSol,
                               int compIdx) const
    {
        return 0.0;
    }
 
    // the more general interface forwarding to inertVolumeFractionAtPos
    template<class SolidSystem, class ElementSolution,
             typename std::enable_if_t<(SolidSystem::numInertComponents > 1) ||
                                       (
                                            (SolidSystem::numInertComponents > 0) &&
                                            (
                                                !SolidSystem::isInert()
                                                || decltype(isValid(Detail::hasInertVolumeFractionAtPos<GlobalPosition, SolidSystem>())
                                                        (std::declval<Implementation>()))::value
                                            )
                                        ),
                                        int> = 0>
    Scalar inertVolumeFraction(const Element& element,
                               const SubControlVolume& scv,
                               const ElementSolution& elemSol,
                               int compIdx) const
    {
        static_assert(decltype(isValid(Detail::hasInertVolumeFractionAtPos<GlobalPosition, SolidSystem>())(this->asImp_()))::value," \n\n"
        "   Your spatial params class has to either implement\n\n"
        "         template<class SolidSystem>\n"
        "         Scalar inertVolumeFractionAtPos(const GlobalPosition& globalPos, int compIdx) const\n\n"
        "   or overload this function\n\n"
        "         template<class SolidSystem, class ElementSolution>\n"
        "         Scalar inertVolumeFraction(const Element& element,\n"
        "                                    const SubControlVolume& scv,\n"
        "                                    const ElementSolution& elemSol,\n"
        "                                    int compIdx) const\n\n");
 
        return this->asImp_().template inertVolumeFractionAtPos<SolidSystem>(scv.center(), compIdx);
    }
};
 
} // namespace Dumux
 
#endif