A light drop rises due to buoyancy through a layer of heavy fluid below a layer of medium density fluid. Viscous and surface tension effects are taken into account.
| Case | Density (kg/m3) | Dynamic Viscosity (Pa.s) | Surface Tension (N/m) |
| 1 | 1.0, 1000, 1500 | 0.0, 1.0, 2.0 | 0.5, 0.5, 1.0 |
| 2 | 1.0, 1000, 1500 | 0.0, 10.0, 20.0 | 0.5, 0.5, 1.0 |
| 3 | 1.0, 1000, 1500 | 0.0, 1.0, 2.0 | 50.0, 50.0, 100.0 |
