WOLFRAM SYSTEMMODELER

LinearWater_pT_Ambient

Liquid, linear compressibility water model at 1.01325 bar and 25 degree Celsius

Package Contents

dynamicViscosity

Dynamic viscosity of water

thermalConductivity

Thermal conductivity of water

Package Constants (29)

ThermoStates

Value: Modelica.Media.Interfaces.Choices.IndependentVariables.pTX

Type: IndependentVariables

Description: Enumeration type for independent variables

mediumName

Value: "Liquid linear water"

Type: String

Description: Name of the medium

substanceNames

Value: {mediumName}

Type: String[:]

Description: Names of the mixture substances. Set substanceNames={mediumName} if only one substance.

extraPropertiesNames

Value: fill("", 0)

Type: String[:]

Description: Names of the additional (extra) transported properties. Set extraPropertiesNames=fill("",0) if unused

singleState

Value: false

Type: Boolean

Description: = true, if u and d are not a function of pressure

reducedX

Value: true

Type: Boolean

Description: = true if medium contains the equation sum(X) = 1.0; set reducedX=true if only one substance (see docu for details)

fixedX

Value: true

Type: Boolean

Description: = true if medium contains the equation X = reference_X

reference_p

Value: 101325

Type: AbsolutePressure (Pa)

Description: Reference pressure of Medium: default 1 atmosphere

reference_T

Value: 298.15

Type: Temperature (K)

Description: Reference temperature of Medium: default 25 deg Celsius

reference_X

Value: fill(1 / nX, nX)

Type: MassFraction[nX] (kg/kg)

Description: Default mass fractions of medium

p_default

Value: 101325

Type: AbsolutePressure (Pa)

Description: Default value for pressure of medium (for initialization)

T_default

Value: Modelica.SIunits.Conversions.from_degC(20)

Type: Temperature (K)

Description: Default value for temperature of medium (for initialization)

h_default

Value: specificEnthalpy_pTX(p_default, T_default, X_default)

Type: SpecificEnthalpy (J/kg)

Description: Default value for specific enthalpy of medium (for initialization)

X_default

Value: reference_X

Type: MassFraction[nX] (kg/kg)

Description: Default value for mass fractions of medium (for initialization)

C_default

Value: fill(0, nC)

Type: ExtraProperty[nC]

Description: Default value for trace substances of medium (for initialization)

nS

Value: size(substanceNames, 1)

Type: Integer

Description: Number of substances

nX

Value: nS

Type: Integer

Description: Number of mass fractions

nXi

Value: if fixedX then 0 else if reducedX then nS - 1 else nS

Type: Integer

Description: Number of structurally independent mass fractions (see docu for details)

nC

Value: size(extraPropertiesNames, 1)

Type: Integer

Description: Number of extra (outside of standard mass-balance) transported properties

C_nominal

Value: 1.0e-6 * ones(nC)

Type: Real[nC]

Description: Default for the nominal values for the extra properties

cp_const

Value: Modelica.Media.Water.StandardWater.specificHeatCapacityCp(state)

Type: SpecificHeatCapacity (J/(kg·K))

Description: Specific heat capacity at constant pressure

beta_const

Value: Modelica.Media.Water.StandardWater.isobaricExpansionCoefficient(state)

Type: IsobaricExpansionCoefficient (1/K)

Description: Thermal expansion coefficient at constant pressure

kappa_const

Value: Modelica.Media.Water.StandardWater.isothermalCompressibility(state)

Type: IsothermalCompressibility (1/Pa)

Description: Isothermal compressibility

MM_const

Value: Modelica.Media.Water.StandardWater.molarMass(state)

Type: MolarMass (kg/mol)

Description: Molar mass

reference_d

Value: Modelica.Media.Water.StandardWater.density(state)

Type: Density (kg/m³)

Description: Density in reference conditions

reference_h

Value: Modelica.Media.Water.StandardWater.specificEnthalpy(state)

Type: SpecificEnthalpy (J/kg)

Description: Specific enthalpy in reference conditions

reference_s

Value: Modelica.Media.Water.StandardWater.specificEntropy(state)

Type: SpecificEntropy (J/(kg·K))

Description: Specific entropy in reference conditions

constantJacobian

Value: true

Type: Boolean

Description: If true, entries in thermodynamic Jacobian are constant, taken at reference conditions

state

Value: Modelica.Media.Water.StandardWater.setState_pT(reference_p, reference_T)

Type: ThermodynamicState

Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

Water model with linear compressibility at ambient conditions

Wolfram Language

In[1]:=
SystemModel["Modelica.Media.CompressibleLiquids.LinearWater_pT_Ambient"]
Out[1]:=

Extended by (1)

Medium

Modelica.Fluid.Examples.HeatingSystem