Regimes of sliding bubble motion along an inclined vibrating plate

Experimental investigation of sliding bubble movement along an inclined plate vibrating in the vertical direction facilitated the determination of two regimes of bubble motion. The first regime is characterized by the existence of a thin liquid film between a plate and a translating bubble, and by the straight trajectory of the bubble motion. The second is characterized by periodical bubble detachment from a plate and by the zigzag trajectory of the bubble motion. The criteria of transition from the first regime to the second are obtained by applying the theory of transport of granular materials by inclining vibratory conveyors to the motion of a sliding bubble.