WOLFRAM SYSTEM MODELER
PartialSimpleMediumMedium model with linear dependency of u, h from temperature. All other quantities, especially density, are constant. |
Thermodynamic state |
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Base properties |
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Return thermodynamic state from p, T, and X or Xi |
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Return thermodynamic state from p, h, and X or Xi |
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Return thermodynamic state from p, s, and X or Xi |
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Return thermodynamic state from d, T, and X or Xi |
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Return thermodynamic state so that it smoothly approximates: if x > 0 then state_a else state_b |
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Return dynamic viscosity |
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Return thermal conductivity |
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Return pressure |
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Return temperature |
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Return density |
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Return specific enthalpy |
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Return specific heat capacity at constant pressure |
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Return specific heat capacity at constant volume |
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Return isentropic exponent |
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Return velocity of sound |
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Return specific enthalpy from p, T, and X or Xi |
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Return temperature from p, h, and X or Xi |
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Return density from p, h, and X or Xi |
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Return specific internal energy |
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Return specific entropy |
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Return specific Gibbs energy |
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Return specific Helmholtz energy |
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Return isentropic enthalpy |
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Returns overall the isobaric expansion coefficient beta |
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Returns overall the isothermal compressibility factor |
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Returns the partial derivative of density with respect to pressure at constant temperature |
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Returns the partial derivative of density with respect to temperature at constant pressure |
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Returns the partial derivative of density with respect to mass fractions at constant pressure and temperature |
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Return the molar mass of the medium |
ThermoStates |
Value: Modelica.Media.Interfaces.Choices.IndependentVariables.pT Type: IndependentVariables Description: Enumeration type for independent variables |
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mediumName |
Value: "unusablePartialMedium" 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: true 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.Units.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: Type: SpecificHeatCapacity (J/(kg⋅K)) Description: Constant specific heat capacity at constant pressure |
cv_const |
Value: Type: SpecificHeatCapacity (J/(kg⋅K)) Description: Constant specific heat capacity at constant volume |
d_const |
Value: Type: Density (kg/m³) Description: Constant density |
eta_const |
Value: Type: DynamicViscosity (Pa⋅s) Description: Constant dynamic viscosity |
lambda_const |
Value: Type: ThermalConductivity (W/(m⋅K)) Description: Constant thermal conductivity |
a_const |
Value: Type: VelocityOfSound (m/s) Description: Constant velocity of sound |
T_min |
Value: Type: Temperature (K) Description: Minimum temperature valid for medium model |
T_max |
Value: Type: Temperature (K) Description: Maximum temperature valid for medium model |
T0 |
Value: reference_T Type: Temperature (K) Description: Zero enthalpy temperature |
MM_const |
Value: Type: MolarMass (kg/mol) Description: Molar mass |
fluidConstants |
Value: Type: FluidConstants[nS] Description: Fluid constants |
SystemModel["Modelica.Media.Interfaces.PartialSimpleMedium"]
Modelica.Media.Water Water: Simple liquid water medium (incompressible, constant data) |