WOLFRAM SYSTEM MODELER
| ddhpDensity derivative by specific enthalpy |  | 

SystemModel["Modelica.Media.Water.IF97_Utilities.ddhp"]

| p | Type: Pressure (Pa) Description: Pressure | 
|---|---|
| h | Type: SpecificEnthalpy (J/kg) Description: Specific enthalpy | 
| phase | Default Value: 0 Type: Integer Description: 2 for two-phase, 1 for one-phase, 0 if not known | 
| region | Default Value: 0 Type: Integer Description: If 0, region is unknown, otherwise known and this input | 
| ddhp | Type: DerDensityByEnthalpy (kg⋅s²/m⁵) Description: Density derivative by specific enthalpy | 
|---|