Bubble-Jets in Gravitational Fields (APS DFD Video V060)

Details Bubble-Jets in Gravitational Fields (APS DFD Video V060) Bubble-Jets in Gravitational Fields (APS DFD Video V060)

2011-10-14

arxiv.org/abs/1110.3135v1

Physics

Fluid Dynamics

1 page, 1 figure, 2 movies included

Scientific paper

We show visualizations of the gravity-induced jets formed by spherical bubbles collapsing in liquids subjected to normal gravity, micro-gravity, and hyper-gravity. These observations demonstrate that gravity can have a significant effect on cavitation bubbles. An analysis of the gravity-induced jets uncovers a scaling law between the size of bubble-induced jets and the non-dimensional parameter grad(p)*R0/p, where R0 is the maximal bubble radius and p is the driving pressure. This scaling law applies to any jet formed in any uniform pressure gradient grad(p).

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