functionregion_pT
return the current region (valid values: 1,2,3,5) in IF97, given pressure and temperature
Extends from Modelica.Icons.Function (Icon for functions).
Inputs
| Type | Name | Default | Description |
|---|---|---|---|
| SI.Pressure | p | pressure | |
| SI.Temperature | T | temperature (K) | |
| Integer | mode | 0 | mode: 0 means check, otherwise assume region=mode |
Outputs
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | region | region (valid values: 1,2,3,5) in IF97, region 4 is impossible! |