partial function densityDerivativeWRTpressure_phxi extends TILMedia.BaseClasses.PartialVLEFluidFunction; input TILMedia.VLEFluidTypes.BaseVLEFluid vleFluidType "VLEFluid type" annotation( choicesAllMatching = true); input SI.AbsolutePressure p "Pressure"; input SI.SpecificEnthalpy h "Specific enthalpy"; input SI.MassFraction[:] xi = TILMedia.Internals.massFraction_mixingRatio(vleFluidType.mixingRatio_propertyCalculation) "Mass fractions of the first nc-1 components"; output SI.DerDensityByPressure drhodp_hxi "Derivative of density wrt pressure at specific enthalpy and mass fraction"; end densityDerivativeWRTpressure_phxi;