computefromreferencephase.hh

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#ifndef DUMUX_COMPUTE_FROM_REFERENCE_PHASE_HH
#define DUMUX_COMPUTE_FROM_REFERENCE_PHASE_HH
 
#include <dumux/material/constraintsolvers/compositionfromfugacities.hh>
 
#include <dune/common/fvector.hh>
#include <dune/common/fmatrix.hh>
 
#include <dumux/common/exceptions.hh>
 
namespace Dumux {

template <class Scalar, class FluidSystem>
class ComputeFromReferencePhase
{
    enum { numPhases = FluidSystem::numPhases };
    enum { numComponents = FluidSystem::numComponents };
    using CompositionFromFugacities = Dumux::CompositionFromFugacities<Scalar, FluidSystem>;
    using ComponentVector = Dune::FieldVector<Scalar, numComponents>;
 
public:
    template <class FluidState, class ParameterCache>
    static void solve(FluidState &fluidState,
                      ParameterCache &paramCache,
                      int refPhaseIdx)
    {
        ComponentVector fugVec;
 
        // compute the density and enthalpy of the
        // reference phase
        paramCache.updatePhase(fluidState, refPhaseIdx);
        fluidState.setDensity(refPhaseIdx,
                              FluidSystem::density(fluidState,
                                                   paramCache,
                                                   refPhaseIdx));
        fluidState.setMolarDensity(refPhaseIdx,
                                   FluidSystem::molarDensity(fluidState,
                                                             paramCache,
                                                             refPhaseIdx));
 
        // compute the fugacities of all components in the reference phase
        for (int compIdx = 0; compIdx < numComponents; ++compIdx)
        {
            fluidState.setFugacityCoefficient(refPhaseIdx,
                                              compIdx,
                                              FluidSystem::fugacityCoefficient(fluidState,
                                                                               paramCache,
                                                                               refPhaseIdx,
                                                                               compIdx));
            fugVec[compIdx] = fluidState.fugacity(refPhaseIdx, compIdx);
        }
 
        // compute all quantities for the non-reference phases
        for (int phaseIdx = 0; phaseIdx < numPhases; ++phaseIdx)
        {
            if (phaseIdx == refPhaseIdx)
                continue; // reference phase is already calculated
 
            CompositionFromFugacities::guessInitial(fluidState, paramCache, phaseIdx, fugVec);
            CompositionFromFugacities::solve(fluidState, paramCache, phaseIdx, fugVec);
        }
    }
};
 
} // end namespace Dumux
 
#endif