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arXiv · 2401.02320

Amplification of supersonic micro-jets by resonant inertial cavitation-bubble pair

Yuzhe Fan·Alexander Bußmann·Fabian Reuter·Hengzhu Bao·Stefan Adami·José M. Gordillo·Nikolaus Adams·Claus-Dieter Ohl
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Abstract

We reveal for the first time by experiments that within a narrow parameter regime, two cavitation bubbles with identical energy generated in anti-phase develop a supersonic jet. High-resolution numerical simulation shows a mechanism for jet amplification based on toroidal shock wave and bubble necking interaction. The micro-jet reaches velocities in excess of 1000 m/s. We demonstrate that potential flow approximation established for Worthington jets accurately predicts the evolution of the bubble gas-liquid interfaces.

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Yuzhe Fan, Alexander Bußmann, Fabian Reuter, Hengzhu Bao, Stefan Adami, José M. Gordillo, Nikolaus Adams, Claus-Dieter Ohl. 2024-01-04. Amplification of supersonic micro-jets by resonant inertial cavitation-bubble pair. https://doi.org/10.1103/physrevlett.132.104004

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