Package Modelica.Media.Interfaces.Choices
Types, constants to define menu choices

Information

Enumerations and data types for all types of fluids

Note: Reference enthalpy might have to be extended with enthalpy of formation.

Extends from Modelica.Icons.Package (Icon for standard packages).

Package Contents

Name	Description
`IndependentVariables`	Enumeration defining the independent variables of a medium
`Init`	Enumeration defining initialization for fluid flow
`pd`	Enumeration defining whether p or d are known for the boundary condition
`ReferenceEnthalpy`	Enumeration defining the reference enthalpy of a medium
`ReferenceEntropy`	Enumeration defining the reference entropy of a medium
`Th`	Enumeration defining whether T or h are known as boundary condition

Enumeration Modelica.Media.Interfaces.Choices.IndependentVariables
Enumeration defining the independent variables of a medium

Literals

Name	Description
`T`	Temperature
`pT`	Pressure, Temperature
`ph`	Pressure, Specific Enthalpy
`phX`	Pressure, Specific Enthalpy, Mass Fraction
`pTX`	Pressure, Temperature, Mass Fractions
`dTX`	Density, Temperature, Mass Fractions

Enumeration Modelica.Media.Interfaces.Choices.Init
Enumeration defining initialization for fluid flow

Literals

Name	Description
`NoInit`	NoInit (no initialization)
`InitialStates`	InitialStates (initialize medium states)
`SteadyState`	SteadyState (initialize in steady state)
`SteadyMass`	SteadyMass (initialize density or pressure in steady state)

Enumeration Modelica.Media.Interfaces.Choices.ReferenceEnthalpy
Enumeration defining the reference enthalpy of a medium

Literals

Name	Description
`ZeroAt0K`	The enthalpy is 0 at 0 K (default), if the enthalpy of formation is excluded
`ZeroAt25C`	The enthalpy is 0 at 25 degC, if the enthalpy of formation is excluded
`UserDefined`	The user-defined reference enthalpy is used at 293.15 K (25 degC)

Enumeration Modelica.Media.Interfaces.Choices.ReferenceEntropy
Enumeration defining the reference entropy of a medium

Literals

Name	Description
`ZeroAt0K`	The entropy is 0 at 0 K (default)
`ZeroAt0C`	The entropy is 0 at 0 degC
`UserDefined`	The user-defined reference entropy is used at 293.15 K (25 degC)

Enumeration Modelica.Media.Interfaces.Choices.pd
Enumeration defining whether p or d are known for the boundary condition

Literals

Name	Description
`default`	Default (no boundary condition for p or d)
`p_known`	p_known (pressure p is known)
`d_known`	d_known (density d is known)

Enumeration Modelica.Media.Interfaces.Choices.Th
Enumeration defining whether T or h are known as boundary condition

Literals

Name	Description
`default`	Default (no boundary condition for T or h)
`T_known`	T_known (temperature T is known)
`h_known`	h_known (specific enthalpy h is known)