test/porousmediumflow/solidenergy/problem.hh

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#ifndef DUMUX_TEST_SOLIDENERGY_PROBLEM_HH
#define DUMUX_TEST_SOLIDENERGY_PROBLEM_HH
 
#include <string>
#include <cmath>
 
#include <dumux/common/parameters.hh>
#include <dumux/common/properties.hh>
#include <dumux/porousmediumflow/problem.hh>
 
namespace Dumux {
 
template <class TypeTag>
class SolidEnergyProblem : public PorousMediumFlowProblem<TypeTag>
{
    using ParentType = PorousMediumFlowProblem<TypeTag>;
    using GridView = GetPropType<TypeTag, Properties::GridView>;
    using Scalar = GetPropType<TypeTag, Properties::Scalar>;
    using PrimaryVariables = GetPropType<TypeTag, Properties::PrimaryVariables>;
    using NeumannValues = GetPropType<TypeTag, Properties::NumEqVector>;
    using BoundaryTypes = GetPropType<TypeTag, Properties::BoundaryTypes>;
    using GridVariables = GetPropType<TypeTag, Properties::GridVariables>;
    using ElementVolumeVariables = typename GridVariables::GridVolumeVariables::LocalView;
    using ElementFluxVariablesCache = typename GridVariables::GridFluxVariablesCache::LocalView;
 
    using Element = typename GridView::template Codim<0>::Entity;
    using GlobalPosition = typename Element::Geometry::GlobalCoordinate;
    using GridGeometry = GetPropType<TypeTag, Properties::GridGeometry>;
    using FVElementGeometry = typename GridGeometry::LocalView;
    using SubControlVolume = typename GridGeometry::SubControlVolume;
    using SubControlVolumeFace = typename GridGeometry::SubControlVolumeFace;
    using PointSource = GetPropType<TypeTag, Properties::PointSource>;
 
public:
    SolidEnergyProblem(std::shared_ptr<const GridGeometry> gridGeometry, const std::string& paramGroup = "")
    : ParentType(gridGeometry, paramGroup)
    {
        name_ = getParam<std::string>("Problem.Name");
        temperatureHigh_ = getParam<Scalar>("Problem.TemperatureHigh");
        temperatureInit_ = getParam<Scalar>("Problem.TemperatureInit");
        lambdaSolid_ = getParam<Scalar>("Component.SolidThermalConductivity");
    }
 
    // \{
 
    const std::string& name() const
    {
        return name_;
    }
    // \}
 
    // \{
 
    BoundaryTypes boundaryTypesAtPos(const GlobalPosition &globalPos) const
    {
        BoundaryTypes bcTypes;
        bcTypes.setAllNeumann();
        return bcTypes;
    }
 
    NeumannValues neumann(const Element& element,
                          const FVElementGeometry& fvGeometry,
                          const ElementVolumeVariables& elemVolVars,
                          const ElementFluxVariablesCache& elemFluxVarsCache,
                          const SubControlVolumeFace& scvf) const
    {
        const auto& volVars = elemVolVars[scvf.insideScvIdx()];
        const Scalar value = 0.02*(volVars.temperatureSolid() - temperatureInit_)/0.002;
        return NeumannValues(value);
    }
 
 
 
    // \}
 
    // \{
 
    PrimaryVariables initialAtPos(const GlobalPosition &globalPos) const
    {
        return PrimaryVariables(temperatureInit_);
    }
 
    void addPointSources(std::vector<PointSource>& pointSources) const
    {
        // add point sources along a sinus
        const auto& gg = this->gridGeometry();
        const auto ampl = (gg.bBoxMax()[1] - gg.bBoxMin()[1])/3.0;
        const auto len = (gg.bBoxMax()[0] - gg.bBoxMin()[0]);
        const auto freq = 1.0/len;
 
        for (int i = 0; i < 100; ++i)
        {
            const auto posx = double(i)/99.0*len;
            const auto posy = ampl*std::sin(2*M_PI*freq*posx) + ampl*3.0/2.0;
            pointSources.emplace_back(GlobalPosition({posx, posy}), typename PointSource::Values({len/100.0}));
        }
    }
 
    void pointSource(PointSource& source,
                     const Element &element,
                     const FVElementGeometry& fvGeometry,
                     const ElementVolumeVariables& elemVolVars,
                     const SubControlVolume &scv) const
    {
        const auto& volVars = elemVolVars[scv];
        const Scalar charLen = 0.1;
        static const Scalar nusselt = getParam<Scalar>("Problem.NusseltNumber");
        const Scalar interfacialArea = 2*M_PI*0.001;
        const Scalar lambdaSolidFluidTransfer = lambdaSolid_;
        source *= -nusselt*interfacialArea*lambdaSolidFluidTransfer*(volVars.temperatureSolid() - temperatureHigh_)/charLen;
    }
 
    // \}
 
private:
    Scalar temperatureHigh_, temperatureInit_, lambdaSolid_;
    static constexpr Scalar eps_ = 1e-6;
    std::string name_;
};
 
} //end namespace Dumux
 
#endif