Observation of Underwater Pulse Discharge and Influence of Deposited Energy on Shock Wave in Non-uniform Electric Field

被引：0
作者：
Li X. [1 ]
Liu Y. [1 ]
Li Z. [1 ]
Zhou G. [1 ]
Zhang Q. [1 ]
Lin F. [1 ]
Pan Y. [1 ]
机构：
[1] State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science & Technology, Wuhan, 430074, Hubei Province
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2017年 / 37卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Deposited energy; Motion and shape variations of arc and bubble; Optical observation; Shock wave characteristics; Time-varying arc impedance; Underwater pulse discharge;
D O I：
10.13334/j.0258-8013.pcsee.160315
中图分类号：
学科分类号：
摘要：
In order to study the influence of deposited energy on the shock wave induced by underwater pulse discharge. An experimental system for underwater pulse discharge in non-uniform electric field was established. The needle-needle electrode system was used, and the gap distance was 15mm. The charged voltage of the main capacitor was 30kV. A fast camera was used for the observation of the motion and shape variation of the arc and bubble, and the results are analyzed comprehensively. In order to study the influence of deposited energy on the shock wave induced by the underwater pulse discharge, the calculation of the deposited energy and the average arc resistance was proposed. In the calculation, the time-varying characteristic of the arc impedance was taken into consideration. Finally, the variations of the deposited energy and the average arc resistance at every half-period were shown, and the expression between the deposited energy and the peak value of the shock wave was given. The results may be valuable to the research on the physical mechanism of underwater pulse discharge, which is crucial to the generation of stronger shock wave. © 2017 Chin. Soc. for Elec. Eng.
引用
收藏
页码：3028 / 3036
页数：8
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