气泡
超音速
物理
空化
喷射(流体)
压缩性
冲击波
环面
机械
休克(循环)
阻塞流
等离子体
核物理学
医学
内科学
作者
Yuzhe Fan,Alexander Bußmann,Fabian Reuter,Hengzhu Bao,Stefan Adami,J. M. Gordillo,Nikolaus A. Adams,Claus‐Dieter Ohl
标识
DOI:10.1103/physrevlett.132.104004
摘要
We reveal for the first time by experiments that within a narrow parameter regime, two cavitation bubbles with identical energy generated in antiphase develop a supersonic jet. High-resolution numerical simulation shows a mechanism for jet amplification based on toroidal shock wave and bubble necking interaction. The microjet reaches velocities in excess of $1000\text{ }\text{ }\mathrm{m}\text{ }{\mathrm{s}}^{\ensuremath{-}1}$. We demonstrate that potential flow theory established for Worthington jets accurately predicts the evolution of the bubble gas-liquid interfaces unifying compressible and incompressible jet amplification.
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