adapter.hh

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#ifndef DUMUX_MATERIAL_FLUID_STATE_ADAPTER_HH
#define DUMUX_MATERIAL_FLUID_STATE_ADAPTER_HH
 
#include <dune/common/exceptions.hh>
 
namespace Dumux {
 
template<class FluidState, class AdapterPolicy>
class FluidStateAdapter
{
    using FluidSystem = typename AdapterPolicy::FluidSystem;
public:
    using Scalar = typename FluidState::Scalar;
 
    static constexpr int numPhases = FluidSystem::numPhases;
    static constexpr int numComponents = FluidSystem::numComponents;
 
    FluidStateAdapter(const FluidState& fluidState)
    : fluidState_(fluidState)
    {}
 
    // \{
    int wettingPhase() const
    { DUNE_THROW(Dune::InvalidStateException, "wetting phase index cannot be mapped"); }
 
    Scalar moleFraction(int phaseIdx, int compIdx) const
    {
        Scalar sumMoleFrac = 0.0;
        for (int cIdx = 0; cIdx < numComponents; ++cIdx)
            sumMoleFrac += fluidState_.moleFraction(AdapterPolicy::phaseIdx(phaseIdx), AdapterPolicy::compIdx(cIdx));
 
        return fluidState_.moleFraction(AdapterPolicy::phaseIdx(phaseIdx), AdapterPolicy::compIdx(compIdx))/sumMoleFrac;
    }
 
    Scalar massFraction(int phaseIdx, int compIdx) const
    {
        Scalar sumMassFrac = 0.0;
        for (int cIdx = 0; cIdx < numComponents; ++cIdx)
            sumMassFrac += fluidState_.massFraction(AdapterPolicy::phaseIdx(phaseIdx), AdapterPolicy::compIdx(cIdx));
 
        return fluidState_.massFraction(AdapterPolicy::phaseIdx(phaseIdx), AdapterPolicy::compIdx(compIdx))/sumMassFrac;
    }
 
    Scalar averageMolarMass(int phaseIdx) const
    {
        Scalar sumXi = 0.0;
        Scalar sumXiMi = 0.0;
        for (int cIdx = 0; cIdx < numComponents; ++cIdx)
        {
            const auto xi = fluidState_.moleFraction(AdapterPolicy::phaseIdx(phaseIdx), AdapterPolicy::compIdx(cIdx));
            sumXi += xi;
            sumXiMi += xi*FluidSystem::molarMass(cIdx);
        }
 
        return sumXiMi/sumXi;
    }
 
    Scalar pressure(int phaseIdx) const
    { return fluidState_.pressure(AdapterPolicy::phaseIdx(phaseIdx)); }
 
    Scalar partialPressure(int phaseIdx, int compIdx) const
    {
        assert(FluidSystem::isGas(phaseIdx));
        return pressure(phaseIdx)*moleFraction(phaseIdx, compIdx);
    }
 
    Scalar temperature(int phaseIdx) const
    { return fluidState_.temperature(AdapterPolicy::phaseIdx(phaseIdx)); }
 
    Scalar temperature() const
    { return fluidState_.temperature(0); }
    // \}
 
private:
    const FluidState& fluidState_;
};
 
} // end namespace Dumux
 
#endif