freeflow/navierstokes/volumevariables.hh

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#ifndef DUMUX_NAVIERSTOKES_VOLUME_VARIABLES_HH
#define DUMUX_NAVIERSTOKES_VOLUME_VARIABLES_HH
 
#include <dumux/freeflow/volumevariables.hh>
 
namespace Dumux {
 
template <class Traits>
class NavierStokesVolumeVariables : public FreeFlowVolumeVariables< Traits, NavierStokesVolumeVariables<Traits> >
{
    using ThisType = NavierStokesVolumeVariables<Traits>;
    using ParentType = FreeFlowVolumeVariables<Traits, ThisType>;
 
    using Scalar = typename Traits::PrimaryVariables::value_type;
 
public:
    using FluidSystem = typename Traits::FluidSystem;
    using FluidState = typename Traits::FluidState;
    using Indices = typename Traits::ModelTraits::Indices;
 
    template<class ElementSolution, class Problem, class Element, class SubControlVolume>
    void update(const ElementSolution& elemSol,
                const Problem& problem,
                const Element& element,
                const SubControlVolume& scv)
    {
        ParentType::update(elemSol, problem, element, scv);
        completeFluidState(elemSol, problem, element, scv, fluidState_);
    }
 
    template<class ElementSolution, class Problem, class Element, class SubControlVolume>
    static void completeFluidState(const ElementSolution& elemSol,
                                   const Problem& problem,
                                   const Element& element,
                                   const SubControlVolume& scv,
                                   FluidState& fluidState)
    {
        const Scalar t = ParentType::temperature(elemSol, problem, element, scv);
        fluidState.setTemperature(t);
 
        fluidState.setPressure(0, elemSol[0][Indices::pressureIdx]);
 
        // saturation in a single phase is always 1 and thus redundant
        // to set. But since we use the fluid state shared by the
        // immiscible multi-phase models, so we have to set it here...
        fluidState.setSaturation(0, 1.0);
 
        typename FluidSystem::ParameterCache paramCache;
        paramCache.updateAll(fluidState);
 
        Scalar value = FluidSystem::density(fluidState, paramCache, 0);
        fluidState.setDensity(0, value);
 
        value = FluidSystem::viscosity(fluidState, paramCache, 0);
        fluidState.setViscosity(0, value);
 
        // compute and set the enthalpy
        value = ParentType::enthalpy(fluidState, paramCache);
        fluidState.setEnthalpy(0, value);
    }
 
    Scalar pressure(int phaseIdx = 0) const
    { return fluidState_.pressure(0); }
 
    Scalar density(int phaseIdx = 0) const
    { return fluidState_.density(0); }
 
    Scalar temperature() const
    { return fluidState_.temperature(); }
 
    Scalar molarMass(int phaseIdx = 0) const
    {
        return fluidState_.averageMolarMass(0);
    }
 
    Scalar viscosity(int phaseIdx = 0) const
    { return fluidState_.viscosity(0); }
 
    Scalar effectiveViscosity() const
    { return viscosity(); }
 
    const FluidState& fluidState() const
    { return fluidState_; }
 
protected:
    FluidState fluidState_;
};
 
} // end namespace Dumux
 
#endif // DUMUX_NAVIERSTOKES_VOLUME_VARIABLES_HH