Finite-amplitude vibration of a bubble and sonoluminescence

• 来源期刊: 中国物理（英文版）
• 关键词: bubble finite-amplitude vibration sonoluminescence
• 年，卷（期）: 2004,（7）
• 页码范围: 1059-1064
• 页数: 6页
• 语种: 英文

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.