| 6 | | First analyses show that vertical mixing of particles with slow settling velocities (e.g. w,,s,,/ u* = 0.01, 0.1) is dominated by the fluid motion and the significant influence of the Langmuir circulation rather than particle inertia. In this case, the mean profiles of particle concentration differ only slightly from the profiles of passive tracers. The particles become well mixed in the OML instead of sinking through the lower boundary. The results are similar for a whole range of Stokes numbers (St = tau,,p,,/ tau,,f,,= 0.01, 0.1, 0.3, 1.0) \\ |
| 7 | | However, particles with w,,s,, |
| | 6 | First analyses show that vertical mixing of particles with slow settling velocities (e.g. w,,s,, / u* = 0.01, 0.1) is dominated by the fluid motion and the significant influence of the Langmuir circulation rather than particle inertia. In this case, the mean profiles of particle concentration differ only slightly from the profiles of passive tracers. The particles become well mixed in the OML instead of sinking through the lower boundary. The results are similar for a whole range of Stokes numbers (St = tau,,p,, / tau,,f,,= 0.01, 0.1, 0.3, 1.0) \\ |
| | 7 | However, particles with w,,s,, / u* = 1.0 are more independent of the fluid motion. Some particles are rapidly mixed downward by the Langmuir circulation, but the greater part reaches the terminal settling velocity w,,s,,. Profiles show a distinct concentration maximum which broadens and descends with time. |
