摘要
通过压电陶瓷(PZT)水听器获取粘性液体中激光空泡脉动辐射的声波,结合分析液体粘性与空泡含气量对空泡最大半径以及脉动周期的影响,实验研究了含气量对粘性液体中空泡声波频谱特性的影响。分析结果表明,在入射激光能量不变的情况下,激光空泡第1次脉动过程中泡内的含气量随着液体粘度的增加而减少,空泡脉动辐射声波的峰值频率有向高频移动的趋势。
The laser-induced cavitation bubble collapse sound waves in viscous liquid are measured by the PZT hydrophone.In combination with analyzing the maximum bubble radius and oscillating duration influenced by the gas content and kinematic viscosity in viscous liquid,the sound waves spectrum properties influenced by the gas content and kinematic viscosity are investigated by experiment.The results indicate that the gas content decreases with the increase of kinematic viscosity under the same laser energy.The longer the oscillating duration,the smaller the maximal bubble radius,and the frequency peak trends higher direction.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2012年第6期1206-1210,共5页
Journal of Optoelectronics·Laser
基金
爆炸科学与技术国家重点实验室基金(KFJJ10-11M)
海洋工程国家重点实验室基金(0908)
武器装备预研重点课题资助项目
关键词
含气量
粘性
空泡
声波
频谱
gas content
viscosity
cavitation bubble
sound waves
spectrum
