impf¶
Time step control based on maximum allowed variable change.
- Group 1 - DELPT, DELTT, DELST, DELAT
| Input Variable | Format | Description |
|---|---|---|
| DELPT | real | Maximum allowable pressure change for which time step will be increased. (MPa) |
| DELTT | real | Maximum allowable temperature change for which time step will be increased. (oC) |
| DELST | real | Maximum allowable saturation change for which time step will be increased. |
| DELAT | real | Maximum allowable air pressure change for which time step will be increased. (MPa) |
The following is an examples of impf. In this example, pressure changes are
limited to 0.5 MPa, temperature changes to 20 oC, saturation changes to 0.1, and
air pressure changes to 0.05 MPa during a time step.
| impf | |||
| 0.5 | 20.0 | 0.1 | 0.05 |
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