recordHelmholtzDerivs
Derivatives of dimensionless Helmholtz-function w.r.t. dimensionless pressure, density and temperature
Extends from Modelica.Icons.Record (Icon for records).
Information
## Copyright © EDF 2002 - 2025 ## ThermoSysPro Version 4.2
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Units.SI.Density | d | Density | |
| Units.SI.Temperature | T | Temperature | |
| Units.SI.SpecificHeatCapacity | R | Specific heat capacity | |
| Real | delta | Dimensionless density | |
| Real | tau | Dimensionless temperature | |
| Real | f | Dimensionless Helmholtz-function | |
| Real | fdelta | Derivative of f w.r.t. delta | |
| Real | fdeltadelta | 2nd derivative of f w.r.t. delta | |
| Real | ftau | Derivative of f w.r.t. tau | |
| Real | ftautau | 2nd derivative of f w.r.t. tau | |
| Real | fdeltatau | Mixed derivative of f w.r.t. delta and tau |