.TILMedia.VLEFluid.SplineDerivatives.InternalFunctions.meanDensity_phAhB .TILMedia.VLEFluid.SplineDerivatives.InternalFunctions.meanDensity_phAhBfunction meanDensity_phAhB = TILMedia.Internals.VLEFluid.AdditionalObjectFunctionsWithDerivatives.meanDensity_phAhB;