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arXiv · 2012.00867

The direction of the microjet produced by the collapse of a cavitation bubble locatedin between a wall and a free surface

Akihito Kiyama·Takaaki Shimazaki·José Manuel Gordillo·Yoshiyuki Tagawa
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Abstract

In this paper, we present a simplified theoretical model based on the method of images that predicts the direction of the microjet produced after the implosion of the cavitation bubble created in between a free interface and rigid wall. Our theoretical predictions have been verified by means of a thorough experimental study in which the distances of the pulsed-laser cavitation bubble to the wall and the free surface are varied in a systematic manner. In addition, we extend the predictions to arbitrary values of the corner angle, $π/(2n)$ with $n$ a natural number. The present analytical solution will be useful in the design of new strategies aimed at preventing the damage caused by cavitating bubbles over solid substrates

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Akihito Kiyama, Takaaki Shimazaki, José Manuel Gordillo, Yoshiyuki Tagawa. 2020-11-09. The direction of the microjet produced by the collapse of a cavitation bubble locatedin between a wall and a free surface. https://doi.org/10.1103/physrevfluids.6.083601

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