On the sound of snapping shrimp

Details On the sound of snapping shrimp On the sound of snapping shrimp

2007-12-13

arxiv.org/abs/0712.2257v1

Physics

Fluid Dynamics

Fluid dynamics video

Scientific paper

Fluid dynamics video: Snapping shrimp produce a snapping sound by an extremely rapid closure of their snapper claw. Our high speed imaging of the claw closure has revealed that the sound is generated by the collapse of a cavitation bubble formed in a fast flowing water jet forced out from the claws during claw closure. The produced sound originates from the cavitation collapse of the bubble. At collapse a short flash of light is emitted, just as in single bubble sonoluminescence. A model based on the Rayleigh-Plesset equation can quantitatively account for the visual and acoustical observations.

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