摘要
简要概述了 2 0世纪 2 0年代起多泡声空化的发现、研究和应用 .随后重点介绍了 2 0世纪 90年代初实现的稳态单一气泡 ;由于它的实现 ,对声空化的实验研究和理论研究迅速取得进展 ,特别是在对气泡内部的极端条件(高温、高压、高密度 )以及对气泡内声致发光的机理研究方面 .同时还介绍了我国早在 2 0世纪 6 0年代实现的瞬态单一泡以及近期的一些实验结果 .文章最后提到 2 0 0 2年 3月美国报道的声空化核辐射实验 。
The discovery, study and application of multiple\|bubble acoustic cavitation since the 20′s of the last century are first briefly reviewed. Attention then is drawn to the realization of a stable single bubble in the early 1990′s, after which experimental and theoretical studies of acoustic cavitation progressed rapidly, including studies of the extreme conditions(high temperature, high pressure and high density) inside a cavitation bubble and the mechanism of its sonoluminescence. The much earlier observation of a transient single bubble in China in the 1960′s is next described together with some recent results. Finally, a most recent(March 2002) experiment by Taleyarkhan R P et al. on nuclear emission by acoustic cavitation which has stirred wide attention is recounted.
出处
《物理》
CAS
北大核心
2002年第8期490-495,共6页
Physics
基金
国家自然科学基金 (批准号 :1993 40 0 1)资助项目
关键词
核发射实验
声空化
多泡
稳态单泡
瞬态单泡
尾流
acoustic cavitation, multibubble, stable single bubble, transient single bubble, nuclear emission
