| Slag layer thickness (m) | Draining time (s), Equation (2) | Draining time (s) for centered position, CFD simulations | Draining time (s) for off-centered position, CFD simulations |
| 0.10 | 374.7 | 372.0 | 376.0 |
| 0.15 | 385.5 | 378.0 | 382.0 |
| 0.20 | 396.1 | 390.0 | 390.0 |