Derivative of viscosity wrt. pressure at constant specific enthalpy in liquid region for given pressure and specific enthalpy
function dmu1ph_Ph input Units.SI.AbsolutePressure p "Pressure"; input Units.SI.SpecificEnthalpy h "Specific enthalpy"; output Real dmuph "Derivative of viscosity wrt. pressure at constant specific enthalpy"; end dmu1ph_Ph;