void eval(CapillaryPressureGradientData< DisplacementDim > const &grad_p_cap, GasPressureGradientData< DisplacementDim > const &grad_p_GR, MassMoleFractionsData const &mass_mole_fractions_data, PhaseTransitionData const &phase_transition_data, PorosityData const &porosity_data, SaturationData const &S_L_data, TemperatureGradientData< DisplacementDim > const &grad_T, DiffusionVelocityData< DisplacementDim > &diffusion_velocity_data) const