中国物理B ›› 2020, Vol. 29 ›› Issue (3): 34303-034303.doi: 10.1088/1674-1056/ab69ee

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Bubble translation driven by pulsation in a double-bubble system

Ling-Ling Zhang(张玲玲), Wei-Zhong Chen(陈伟中), Yuan-Yuan Zhang(张圆媛), Yao-Rong Wu(武耀蓉), Xun Wang(王寻), Guo-Ying Zhao(赵帼英)   

  1. Key Laboratory of Modern Acoustics(Ministry of Education), Institute of Acoustics, Nanjing University, Nanjing 210093, China
  • 收稿日期:2019-12-17 修回日期:2020-01-08 出版日期:2020-03-05 发布日期:2020-03-05
  • 通讯作者: Wei-Zhong Chen E-mail:wzchen@nju.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11574150 and 11334005).

Bubble translation driven by pulsation in a double-bubble system

Ling-Ling Zhang(张玲玲), Wei-Zhong Chen(陈伟中), Yuan-Yuan Zhang(张圆媛), Yao-Rong Wu(武耀蓉), Xun Wang(王寻), Guo-Ying Zhao(赵帼英)   

  1. Key Laboratory of Modern Acoustics(Ministry of Education), Institute of Acoustics, Nanjing University, Nanjing 210093, China
  • Received:2019-12-17 Revised:2020-01-08 Online:2020-03-05 Published:2020-03-05
  • Contact: Wei-Zhong Chen E-mail:wzchen@nju.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11574150 and 11334005).

摘要: The pulsation and translation of two cavitation bubbles are studied numerically in sound field. The results show that bubbles' pulsation driven by the sound makes them translate. Different pulsations lead to different translations. Two bubbles will be mutually attractive to each other if they pulsate in phase, while they will be repulsive if out of phase. Furthermore, the secondary Bjerknes force for small phase difference is attractive, and it becomes repulsive for other phase differences up to π phase difference due to the nonlinear effect, although the attractive strength between two bubbles is much larger than the repulsive strength. Finally, one bubble pulsation and the other bubble stationary make the bubbles repel each other.

关键词: double bubble dynamics, pulsation, translation, phase difference

Abstract: The pulsation and translation of two cavitation bubbles are studied numerically in sound field. The results show that bubbles' pulsation driven by the sound makes them translate. Different pulsations lead to different translations. Two bubbles will be mutually attractive to each other if they pulsate in phase, while they will be repulsive if out of phase. Furthermore, the secondary Bjerknes force for small phase difference is attractive, and it becomes repulsive for other phase differences up to π phase difference due to the nonlinear effect, although the attractive strength between two bubbles is much larger than the repulsive strength. Finally, one bubble pulsation and the other bubble stationary make the bubbles repel each other.

Key words: double bubble dynamics, pulsation, translation, phase difference

中图分类号:  (Ultrasonics, quantum acoustics, and physical effects of sound)

  • 43.35.+d
43.25.+y (Nonlinear acoustics) 47.55.dp (Cavitation and boiling)