Bubble dynamics
Bubble cluster wake interaction
This simulation test considers a cluster of three bubbles arranged in arc traveling amidst a contrary liquid stream. The leading bubble goes above two trailing bubbles placed side-by-side. The wake interaction of the leading bubble over the others is observed in this velocity field. Regions of high velocity gradients appear at the outermost lateral tips due to interface deformation. Such configuration looks like the V-flight of birds, air streams, and shedding of wingtip vortices.