**PartialMedium** is a package and contains all **declarations** for
a medium. This means that constants, models, and functions
are defined that every medium is supposed to support
(some of them are optional). A medium package
inherits from **PartialMedium** and provides the
equations for the medium. The details of this package
are described in
Modelica.Media.UsersGuide.

Name | Description |
---|---|

FluidConstants | Critical, triple, molecular and other standard data of fluid |

ThermodynamicState | Minimal variable set that is available as input argument to every medium function |

BaseProperties | Base properties (p, d, T, h, u, R_s, MM and, if applicable, X and Xi) of a medium |

setState_pTX | Return thermodynamic state as function of p, T and composition X or Xi |

setState_phX | Return thermodynamic state as function of p, h and composition X or Xi |

setState_psX | Return thermodynamic state as function of p, s and composition X or Xi |

setState_dTX | Return thermodynamic state as function of d, T and composition X or Xi |

setSmoothState | Return thermodynamic state so that it smoothly approximates: if x > 0 then state_a else state_b |

dynamicViscosity | Return dynamic viscosity |

thermalConductivity | Return thermal conductivity |

prandtlNumber | Return the Prandtl number |

pressure | Return pressure |

temperature | Return temperature |

density | Return density |

specificEnthalpy | Return specific enthalpy |

specificInternalEnergy | Return specific internal energy |

specificEntropy | Return specific entropy |

specificGibbsEnergy | Return specific Gibbs energy |

specificHelmholtzEnergy | Return specific Helmholtz energy |

specificHeatCapacityCp | Return specific heat capacity at constant pressure |

heatCapacity_cp | Alias for deprecated name |

specificHeatCapacityCv | Return specific heat capacity at constant volume |

heatCapacity_cv | Alias for deprecated name |

isentropicExponent | Return isentropic exponent |

isentropicEnthalpy | Return isentropic enthalpy |

velocityOfSound | Return velocity of sound |

isobaricExpansionCoefficient | Return overall the isobaric expansion coefficient beta |

beta | Alias for isobaricExpansionCoefficient for user convenience |

isothermalCompressibility | Return overall the isothermal compressibility factor |

kappa | Alias of isothermalCompressibility for user convenience |

density_derp_h | Return density derivative w.r.t. pressure at const specific enthalpy |

density_derh_p | Return density derivative w.r.t. specific enthalpy at constant pressure |

density_derp_T | Return density derivative w.r.t. pressure at const temperature |

density_derT_p | Return density derivative w.r.t. temperature at constant pressure |

density_derX | Return density derivative w.r.t. mass fraction |

molarMass | Return the molar mass of the medium |

specificEnthalpy_pTX | Return specific enthalpy from p, T, and X or Xi |

specificEntropy_pTX | Return specific enthalpy from p, T, and X or Xi |

density_pTX | Return density from p, T, and X or Xi |

temperature_phX | Return temperature from p, h, and X or Xi |

density_phX | Return density from p, h, and X or Xi |

temperature_psX | Return temperature from p,s, and X or Xi |

density_psX | Return density from p, s, and X or Xi |

specificEnthalpy_psX | Return specific enthalpy from p, s, and X or Xi |

MassFlowRate | Type for mass flow rate with medium specific attributes |

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