Research on Claw Motion Characteristics and Cavitation Bubbles of Snapping Shrimp

Figure 6

(a) Reference plane for the simulation results, showing the flow field of the snapper claw along the nozzle. (b) Contour of the pressure on the claw side when the bubble collapses. The pressure on both sides of the bubble is different, and the pressure on the bottom is higher. (c) When it is about to burst, the bubble is compressed into a concave shape, pointing to the head of the bubble. (d) Speed vector of the flow field. When the bubble bursts, the fluid on both sides moves toward the middle of the bubble, and the jet velocity from the bottom of the bubble pointing to the head is greater. (e) Picture of the cavitation bubble in the maximum state. The nonspherical bubble includes the jet in the middle and vapor around. (f) Simulation result of cavitation bubble with vapor volume fraction of 50%. (g) Contour of vapor volume fraction along the axis of the bubble. (h) Contour of vapor volume fraction along the radial cross-section of the bubble.

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