Bubble fission phenomena in microbubble generator using venturi tube
Bubble fission phenomena in microbubble generator using venturi tube
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文丘里管微气泡发生器中的气泡裂变现象
DOI：
10.3154/jvs.24.supplement1_121
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
Y. Matsumoto
中科院分区：
文献类型：
--
作者：
A. Fujiwara;Kazuhiro Watanabwe;S. Takagi;Y. Matsumoto
本文介绍了一种利用收敛-扩张喷嘴(文丘里管)产生微气泡的有效技术。发散区的快速压力恢复会导致气泡的裂变。本研究的目的是阐明气泡破裂的机理。结果表明，当空化数小于1.0时，微气泡是由气泡裂变产生的。利用高速相机对气泡的几种破碎现象进行了详细观察。
In the present study one of the effective techniques for micro-bubble generation by using converging-diverging nozzle (venturi tube) is introduced. Rapid pressure recovery in the diverging area induces bubble fission. The purpose of the present study is to clarify the mechanism of the bubble breakup. The results suggest that micro-bubbles are generated by the bubble fission in the case of the cavitation number of less than 1.0. By using a high-speed camera, several kinds of bubble breakup phenomena were observed in detail.