水中高压放电气泡的实验研究  

Experimental investigation of bublles by underwater wire exploding

作　　者：高波[1] 张寒虹[1] 张弛[2] 

机构地区：[1]中国科学技术大学力学与机械工程系,合肥230026 [2]中国科学技术大学近代物理系,合肥230026

出　　处：《物理学报》2003年第7期1714-1719,共6页Acta Physica Sinica

摘　　要：采用高速摄影方法对通过金属丝的水中高压放电所产生的气泡脉动现象进行了实验研究 ,发现气泡脉动有以下基本规律 :脉动参数主要取决于初始总电能大小 ,而与电容和充电电压的具体取值关系不大 ;实验段脉动参数受池壁的边界效应影响很小 .气泡的脉动机械能占据了放电总能量的 2 0 %— 4 0 % ,第二次脉动与第一次脉动的能量比也与此接近 ;The pulsation of bubbles generated by underwater wire exploding is studied by means of high-speed photography. We discovered that mechanical parameters of the bubbles are mainly determined by the total discharge energy and related not much to the voltage and the capacitance. Boundary influence is also not too large in the experiment. The energy of pulsation occupies 20%-40% of the total discharge energy, and the proportion between the pulsation energies of the first time and the second time is about this value. The bursting forth phenomenon is the main reason of the decline of bubble's energy.

关 键 词：水中高压放电 气泡脉动 实验研究 高速摄影 金属丝 

分 类 号：O59[理学—应用物理]