中国物理B ›› 2021, Vol. 30 ›› Issue (10): 104301-104301.doi: 10.1088/1674-1056/abea98

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Repulsive bubble-bubble interaction in ultrasonic field

Ling-Ling Zhang(张玲玲), Wei-Zhong Chen(陈伟中), Yao-Rong Wu(武耀蓉), Yang Shen(沈阳), and 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:2021-01-14 修回日期:2021-02-10 接受日期:2021-03-01 发布日期:2021-09-26
  • 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 12074185).

Repulsive bubble-bubble interaction in ultrasonic field

Ling-Ling Zhang(张玲玲), Wei-Zhong Chen(陈伟中), Yao-Rong Wu(武耀蓉), Yang Shen(沈阳), and Guo-Ying Zhao(赵帼英)   

  1. Key Laboratory of Modern Acoustics(Ministry of Education), Institute of Acoustics, Nanjing University, Nanjing 210093, China
  • Received:2021-01-14 Revised:2021-02-10 Accepted:2021-03-01 Published:2021-09-26
  • 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 12074185).

摘要: The bubble-bubble interaction (BBI) is attractive in most cases, but also could be repulsive. In the present study, three specific mechanisms of repulsive BBI are given. The great contribution to the repulsive BBI is derived from the large radius of the bubble catching the rebound point of the other bubble. For “elastic” bubble and “inelastic” bubble, with the increase of the phase shift between two bubbles, the BBI changes from attractive to repulsive, and the repulsion can be maintained. For both “elastic” bubbles, the BBI alternates between attractive interaction and repulsive interaction along the direction where the ambient radius of one of bubbles increases. For stimulating bubble and stimulated bubble, the BBI can be repulsive. Its property depends on the ambient radii of bubbles. In addition, the distribution of the radiation forces in ambient radius space shows that the BBI is sensitive to the size of bubble and is complex because the bubbles are not of the same size in an ultrasonic field. Finally, as the distance increases or decreases monotonically with time, the absolute value of the BBI decreases or increases, correspondingly. The BBI can oscillate not only in strength but also in polarity when the distance fluctuates with time.

关键词: bubble-bubble interaction, repulsion, phase shift

Abstract: The bubble-bubble interaction (BBI) is attractive in most cases, but also could be repulsive. In the present study, three specific mechanisms of repulsive BBI are given. The great contribution to the repulsive BBI is derived from the large radius of the bubble catching the rebound point of the other bubble. For “elastic” bubble and “inelastic” bubble, with the increase of the phase shift between two bubbles, the BBI changes from attractive to repulsive, and the repulsion can be maintained. For both “elastic” bubbles, the BBI alternates between attractive interaction and repulsive interaction along the direction where the ambient radius of one of bubbles increases. For stimulating bubble and stimulated bubble, the BBI can be repulsive. Its property depends on the ambient radii of bubbles. In addition, the distribution of the radiation forces in ambient radius space shows that the BBI is sensitive to the size of bubble and is complex because the bubbles are not of the same size in an ultrasonic field. Finally, as the distance increases or decreases monotonically with time, the absolute value of the BBI decreases or increases, correspondingly. The BBI can oscillate not only in strength but also in polarity when the distance fluctuates with time.

Key words: bubble-bubble interaction, repulsion, phase shift

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)