| 表面张力对空泡脉动特性影响的实验研究 |
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| 引用本文： | 贺杰,刘秀梅,陆建,倪晓武.表面张力对空泡脉动特性影响的实验研究[J].光电子．激光,2009(8). |
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| 作者姓名： | 贺杰 刘秀梅 陆建 倪晓武 |
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| 作者单位： | 南京工程学院基础部;南京理工大学应用物理系; |
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| 基金项目： | 国家自然科学基金资助项目(60578015);;教育部高校优秀青年教师奖励计划;;博士点基金资助项目(20050288025) |
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| 摘 要： | 采用光偏转(OBD)测试系统对不同表面张力液体中激光空泡脉动特性进行了实验研究,探测了不同表面张力液体中空泡前2次脉动的全过程,分析了液体表面张力变化对空泡脉动特性的影响。结果表明:表面张力延缓了空泡的膨胀过程,加速了空泡的收缩,缩短了空泡脉动周期;表面张力越大,空泡对应的最大泡半径越小而收缩所能达到的最小泡半径亦越小;表面张力加强了空泡泡能的损失。
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| 关 键 词： | 空泡 表面张力 最大泡半径 最小泡半径 生命周期 泡能 |
Effect of liquid surface tension on behavior of laser-induced cavitation bubble |
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| HE Jie,LIU Xiu-mei,LU Jian,NI Xiao-wu.Effect of liquid surface tension on behavior of laser-induced cavitation bubble[J].Journal of Optoelectronics·laser,2009(8). |
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| Authors: | HE Jie LIU Xiu-mei LU Jian NI Xiao-wu |
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| Affiliation: | 1.Fundamental Department;Nanjing Institute of Technology;Nanjing 211167;China;2.Department of Applied Physics;Nanjing university of Science &Technology;Nanjing 210094;China |
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| Abstract: | The effect of surface tension on the behavior of a laser-induced cavitation bubble is investigated experimentally by means of a fiber-coupled optical beam deflection(OBD)technique.The maximum and minimum bubble radii as well as the oscillation times for the first two oscillation cycle are determined according to the characteristic signals.The experimental results show that the surface-tension forces slow down the bubble growth progress,but speed up the bubble collapse process and shorten the oscillation tim... |
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| Keywords: | cavitation bubble surface tension maximum bubble radii minimum bubble radii life-time bubble energy |
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