Gravity-driven migration of bubbles and/or solid particles near a free surface

Marine Guémas (1, 2) , Antoine Sellier (1) , Franck Pigeonneau (2)

1 LadHyX - Laboratoire d'hydrodynamique
2 SVI - Surface du Verre et Interfaces

We investigate the challenging problem of bubble(s) and rigid particle(s) interacting near a free surface. The time-dependent bubble(s) and free surface shapes are determined for a large range of Bond number by solving the creeping flow induced by the bubble(s) and the particle(s) motion. This works extends the boundary-integral formulation handled in a recent work solely dealing with bubble(s) ascending toward a free surface.

Mots clés: Bubble; free surface; surface tension; Stokes flow; Boundary-integral equation; film drainage

Domaines: Physique [physics]; Mécanique [physics]; Mécanique des fluides [physics.class-ph]

Marine Guémas, Antoine Sellier, Franck Pigeonneau. Gravity-driven migration of bubbles and/or solid particles near a free surface. International Conference on Boun- dary Element and Meshless Techniques XIV, Jul 2013, Palaiseau, France. ⟨hal-01519287⟩