test/porousmediumflow/1pnc/implicit/1p2c/isothermal/saltwaterintrusion/problem.hh

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#ifndef DUMUX_SALTWATERINTRUSION_TEST_PROBLEM_HH
#define DUMUX_SALTWATERINTRUSION_TEST_PROBLEM_HH
 
#include <dune/grid/yaspgrid.hh>
 
#include <dumux/discretization/box.hh>
#include <dumux/porousmediumflow/1pnc/model.hh>
#include <dumux/porousmediumflow/problem.hh>
 
#include <dumux/material/fluidsystems/brine.hh>
#include "../../spatialparams.hh"
 
namespace Dumux {
 
template <class TypeTag>
class SaltWaterIntrusionTestProblem;
 
namespace Properties {
// Create new type tags
namespace TTag {
struct SaltWaterIntrusionTest { using InheritsFrom = std::tuple<OnePNC, BoxModel>; };
} // end namespace TTag
 
// Use a structured yasp grid
template<class TypeTag>
struct Grid<TypeTag, TTag::SaltWaterIntrusionTest> { using type = Dune::YaspGrid<2>; };
 
// Set the problem property
template<class TypeTag>
struct Problem<TypeTag, TTag::SaltWaterIntrusionTest> { using type = SaltWaterIntrusionTestProblem<TypeTag>; };
 
// Set fluid configuration
template<class TypeTag>
struct FluidSystem<TypeTag, TTag::SaltWaterIntrusionTest>
{ using type = FluidSystems::Brine< GetPropType<TypeTag, Properties::Scalar> >; };
 
// Set the spatial parameters
template<class TypeTag>
struct SpatialParams<TypeTag, TTag::SaltWaterIntrusionTest>
{
    using GridGeometry = GetPropType<TypeTag, Properties::GridGeometry>;
    using Scalar = GetPropType<TypeTag, Properties::Scalar>;
    using type = OnePNCTestSpatialParams<GridGeometry, Scalar>;
};
 
// Use mass fractions to set salinity conveniently
template<class TypeTag>
struct UseMoles<TypeTag, TTag::SaltWaterIntrusionTest> { static constexpr bool value = false; };
 
} // end namespace Properties

template <class TypeTag>
class SaltWaterIntrusionTestProblem : public PorousMediumFlowProblem<TypeTag>
{
    using ParentType = PorousMediumFlowProblem<TypeTag>;
 
    using Scalar = GetPropType<TypeTag, Properties::Scalar>;
    using Indices = typename GetPropType<TypeTag, Properties::ModelTraits>::Indices;
    using GridView = GetPropType<TypeTag, Properties::GridView>;
    using Element = typename GridView::template Codim<0>::Entity;
    using GlobalPosition = typename Element::Geometry::GlobalCoordinate;
    using FluidSystem = GetPropType<TypeTag, Properties::FluidSystem>;
    using BoundaryTypes = GetPropType<TypeTag, Properties::BoundaryTypes>;
    using PrimaryVariables = GetPropType<TypeTag, Properties::PrimaryVariables>;
    using GridGeometry = GetPropType<TypeTag, Properties::GridGeometry>;
 
    // copy pressure index for convenience
    enum { pressureIdx = Indices::pressureIdx };

    static_assert(!getPropValue<TypeTag, Properties::UseMoles>(), "This test uses mass fractions!");
 
public:
    SaltWaterIntrusionTestProblem(std::shared_ptr<const GridGeometry> gridGeometry)
    : ParentType(gridGeometry)
    {
        //initialize fluid system
        FluidSystem::init();
    }

    // \{

    Scalar temperature() const
    { return 273.15 + 20; } // in [K]
 
    // \}

    // \{

    BoundaryTypes boundaryTypesAtPos(const GlobalPosition& globalPos) const
    {
        BoundaryTypes values;
        values.setAllNeumann();
 
        // use Dirichlet BCs on the left and right boundary
        if(globalPos[0] < eps_ || globalPos[0] > this->gridGeometry().bBoxMax()[0] - eps_)
            values.setAllDirichlet();
 
        return values;
    }

    PrimaryVariables dirichletAtPos(const GlobalPosition& globalPos) const
    {
        PrimaryVariables values = initialAtPos(globalPos);
 
        // salt water is in contact on the right boundary
        if (globalPos[0] > this->gridGeometry().bBoxMax()[0] - eps_)
            values[FluidSystem::NaClIdx] = 0.035; // 3.5% salinity (sea water)
 
        return values;
    }
 
    // \}

    // \{

    PrimaryVariables initialAtPos(const GlobalPosition& globalPos) const
    {
        const Scalar depth = this->gridGeometry().bBoxMax()[1] - globalPos[1];
        PrimaryVariables priVars;
        priVars[pressureIdx] = 1e5 + depth*9.81*1000; // hydrostatic pressure (assume rho_water = 1000.0)
        priVars[FluidSystem::NaClIdx] = 0.0;          // initially only fresh water is present
        return priVars;
    }
 
    // \}
 
private:
    static constexpr Scalar eps_ = 1e-6;
};
 
} // end namespace Dumux
 
#endif