1p_richards/spatialparams_soil.hh

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#ifndef DUMUX_SOIL_SPATIAL_PARAMS_HH
#define DUMUX_SOIL_SPATIAL_PARAMS_HH
 
#include <dumux/common/parameters.hh>
#include <dumux/material/spatialparams/fv.hh>
#include <dumux/material/fluidmatrixinteractions/2p/regularizedvangenuchten.hh>
#include <dumux/material/fluidmatrixinteractions/2p/efftoabslaw.hh>
 
namespace Dumux {
 
template<class GridGeometry, class Scalar>
class SoilSpatialParams
: public FVSpatialParams<GridGeometry,Scalar, SoilSpatialParams<GridGeometry, Scalar>>
{
    using ThisType = SoilSpatialParams<GridGeometry, Scalar>;
    using ParentType = FVSpatialParams<GridGeometry, Scalar, ThisType>;
    using GridView = typename GridGeometry::GridView;
    using Element = typename GridView::template Codim<0>::Entity;
    using SubControlVolume = typename GridGeometry::SubControlVolume;
    using GlobalPosition = typename Element::Geometry::GlobalCoordinate;
 
public:
    // export permeability type
    using PermeabilityType = Scalar;
    // export material law type
    using MaterialLaw = EffToAbsLaw<RegularizedVanGenuchten<Scalar>>;
    // export material law params
    using MaterialLawParams = typename MaterialLaw::Params;
 
    SoilSpatialParams(std::shared_ptr<const GridGeometry> gridGeometry)
    : ParentType(gridGeometry)
    {
        // residual saturations
        materialParams_.setSwr(0.05);
        materialParams_.setSnr(0.0);
 
        // parameters for the Van Genuchten law
        // alpha and n
        materialParams_.setVgAlpha(2.956e-4);
        materialParams_.setVgn(1.5);
 
        // perm and poro
        permeability_ = getParam<Scalar>("Soil.SpatialParams.Permeability");
        porosity_ = getParam<Scalar>("Soil.SpatialParams.Porosity");
    }
 
    template<class ElementSolution>
    PermeabilityType permeability(const Element& element,
                                  const SubControlVolume& scv,
                                  const ElementSolution& elemSol) const
    {
        return permeability_;
    }
 
    template<class ElementSolution>
    Scalar porosity(const Element& element,
                    const SubControlVolume& scv,
                    const ElementSolution& elemSol) const
    {
        return porosity_;
    }
 
    const MaterialLawParams& materialLawParamsAtPos(const GlobalPosition &globalPos) const
    { return materialParams_; }
 
private:
    MaterialLawParams materialParams_;
    Scalar permeability_;
    Scalar porosity_;
};
 
} // end namespace Dumux
 
#endif