中国物理B ›› 2004, Vol. 13 ›› Issue (7): 1059-1064.doi: 10.1088/1009-1963/13/7/016

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Finite-amplitude vibration of a bubble and sonoluminescence

钱祖文, 肖灵, 郭良浩   

  1. National Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080, China
  • 收稿日期:2003-09-09 修回日期:2004-01-26 出版日期:2005-07-05 发布日期:2005-07-05
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10274090).

Finite-amplitude vibration of a bubble and sonoluminescence

Qian Zu-Wen (钱祖文), Xiao Ling (肖灵), Guo Liang-Hao (郭良浩)   

  1. National Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2003-09-09 Revised:2004-01-26 Online:2005-07-05 Published:2005-07-05
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10274090).

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摘要： Numerical solutions of the differential equation for a bubble performing finite-amplitude vibration are given in detail for a variety of situations. The results demonstrate that in lower acoustic pressure (maximum Mach number very low) its vibration has bounce. When acoustic pressure is in excess of 1.18atm and the instantaneous radius of the bubble approaches its equivalent Van der Waals radius, the maximum velocity and acceleration on the surface of a bubble have a huge increase in a very short period, which seems to favour the sonoluminescence. In vacuum environment (0.1atm), an intensive sonoluminescence could be generated.

Abstract: Numerical solutions of the differential equation for a bubble performing finite-amplitude vibration are given in detail for a variety of situations. The results demonstrate that in lower acoustic pressure (maximum Mach number very low) its vibration has bounce. When acoustic pressure is in excess of 1.18atm and the instantaneous radius of the bubble approaches its equivalent Van der Waals radius, the maximum velocity and acceleration on the surface of a bubble have a huge increase in a very short period, which seems to favour the sonoluminescence. In vacuum environment (0.1atm), an intensive sonoluminescence could be generated.

Key words: bubble, finite-amplitude vibration, sonoluminescence

中图分类号:  (Nonlinear acoustics)

  • 43.25.+y
43.35.+d (Ultrasonics, quantum acoustics, and physical effects of sound) 02.60.Lj (Ordinary and partial differential equations; boundary value problems)