thermalconductivitysimplefluidlumping.hh

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#ifndef DUMUX_MATERIAL_THERMALCONDUCTIVITY_SIMPLE_FLUID_LUMPING_HH
#define DUMUX_MATERIAL_THERMALCONDUCTIVITY_SIMPLE_FLUID_LUMPING_HH
 
#include <assert.h>
#include <algorithm>
 
namespace Dumux {
 
template<class Scalar, int numEnergyEquationsFluid>
class ThermalConductivitySimpleFluidLumping
{
 
public:
    template<class VolumeVariables, class SpatialParams, class Element, class FVGeometry>
    [[deprecated("Signature deprecated. Use signature with volume variables only!")]]
    static Scalar effectiveThermalConductivity(const VolumeVariables& volVars,
                                               const SpatialParams& spatialParams,
                                               const Element& element,
                                               const FVGeometry& fvGeometry,
                                               const typename FVGeometry::SubControlVolume& scv)
    {
        return effectiveThermalConductivity(volVars);
    }
 
    template<class VolumeVariables>
    static Scalar effectiveThermalConductivity(const VolumeVariables& volVars)
    {
        using FluidSystem = typename VolumeVariables::FluidSystem;
        const Scalar sw = volVars.saturation(FluidSystem::phase0Idx);
        const Scalar lambdaW = volVars.fluidThermalConductivity(FluidSystem::phase0Idx);
        const Scalar lambdaN = volVars.fluidThermalConductivity(FluidSystem::phase1Idx);
        const Scalar lambdaSolid = volVars.solidThermalConductivity();
        const Scalar porosity = volVars.porosity();
 
        return effectiveThermalConductivity(sw, lambdaW, lambdaN, lambdaSolid, porosity);
    }
 
    static Scalar effectiveThermalConductivity(const Scalar sw,
                                               const Scalar lambdaW,
                                               const Scalar lambdaN,
                                               const Scalar lambdaSolid,
                                               const Scalar porosity,
                                               const Scalar rhoSolid = 0.0 /*unused*/)
    {
        assert(numEnergyEquationsFluid != 2) ;
 
        // Franz Lindner / Shi & Wang 2011
        using std::max;
        const Scalar satW = max<Scalar>(0.0, sw);
 
        const Scalar kfeff = porosity *((1.-satW)*lambdaN + satW*lambdaW) ; // arithmetic
 
        Scalar keff ;
 
        if (numEnergyEquationsFluid == 1){ // solid dealed with individually (extra balance equation)
            keff = kfeff ;
        }
        else {
            const Scalar kseff = (1.0-porosity)  * lambdaSolid ;
            keff = kfeff  + kseff;
        }
 
        return keff ;
    }
};
} // end namespace Dumux
#endif