| Name | Description |
|---|---|
| The phases are in ideal thermodynamic equilibrium | |
| Volume is ideally stirred | |
| Separation | Ideal | outlet states depending on filling Level | All geometries | |
| The phases are NOT in ideal thermodynamic equilibrium | |
| Separation | Real | outlet states depending on filling Level | All geometries | |
| Mixing | Real | outlet states depending volume fractions | All geometries | |
| Both phases are in mechanical equilibrium | |
| Simple slip correlation according to Zivi |