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