中国物理B ›› 2008, Vol. 17 ›› Issue (7): 2580-2593.doi: 10.1088/1674-1056/17/7/040

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The pressure field in the liquid column in the tube-arrest method

应崇福, 李超, 徐德龙, 邓京军   

  1. Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080, China
  • 收稿日期:2007-12-12 修回日期:2008-01-29 出版日期:2008-07-09 发布日期:2008-07-09

The pressure field in the liquid column in the tube-arrest method

Ying Chong-Fu(应崇福), Li Chao(李超)†,Xu De-Long(徐德龙), and Deng Jing-Jun(邓京军)   

  1. Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2007-12-12 Revised:2008-01-29 Online:2008-07-09 Published:2008-07-09

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摘要： We have been using the method of tube-arrest as a means of producing transient single cavitation bubble. In the present paper we seek to comprehend the mechanism of production and inquire into the structure of the {\em ab initio} pressure field in the arrested liquid column. The generated pressure wave is shown by combining the theoretical analysis with the experimental observation to be a slightly varied version of water hammer. With relatively clean liquid, the magnitude of the tension peak generating the TSB is likely to reach of several millions Pa. It is also shown that the so generated cavitation bubble originating from the gas-containing bulk liquid is in `violent' motion.

关键词: tube-arrest method, original pressure wave, water hammer, origin of violent cavitation bubble

Abstract: We have been using the method of tube-arrest as a means of producing transient single cavitation bubble. In the present paper we seek to comprehend the mechanism of production and inquire into the structure of the ab initio pressure field in the arrested liquid column. The generated pressure wave is shown by combining the theoretical analysis with the experimental observation to be a slightly varied version of water hammer. With relatively clean liquid, the magnitude of the tension peak generating the TSB is likely to reach of several millions Pa. It is also shown that the so generated cavitation bubble originating from the gas-containing bulk liquid is in `violent' motion.

Key words: tube-arrest method, original pressure wave, water hammer, origin of violent cavitation bubble

中图分类号:  (Cavitation and boiling)

  • 47.55.dp
47.55.dd (Bubble dynamics) 61.20.Gy (Theory and models of liquid structure)