Generation of Large Volume Discharges in Water

朱太云; 王秀环; 张乔根; 杨兰均

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Generation of Large Volume Discharges in Water

更新时间：2025-12-08

- Generation of Large Volume Discharges in Water
- Vol. 42, Issue 6, Pages: 723-727(2008)
- 作者机构：
  
  西安交通大学电气工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM89
- Online First：09 June 2008，
  
  Published：2008
- 稿件说明：
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朱太云, 王秀环, 张乔根, et al. Generation of Large Volume Discharges in Water[J]. 2008, 42(6): 723-727.
DOI：

朱太云, 王秀环, 张乔根, et al. Generation of Large Volume Discharges in Water[J]. 2008, 42(6): 723-727. DOI：

摘要

研究了一种脉冲电压下采用涂覆介质的球-环电极结构在水中产生多通道、辐射状、大体积流注放电的新方法.与以前方法相比

该方法能在较低电压幅值下在水中产生大体积放电.采用光学和电学手段

对流注放电通道的长度、数量、脉冲电压参数(如电压幅值和脉冲宽度)对放电的影响进行了研究.对电极介质涂覆条件下流注的产生与发展做出了理论解释.研究结果表明

水中放电的最大流注长度和通道起始点数均随脉冲电压幅值和脉冲宽度增加而增加.介质涂覆中局部电场的增强和微小缺陷的局部放电在水中形成气泡是水中流注放电起始的根本原因.

Abstract

A new method using dielectric-coated sphere-ring electrode was put forward to generate multiple

radial streamer discharges in tap water by applying a pulse voltage. Different from the previous methods by means of extremely high electric strength

this kind of electrode configuration enables to generate large volume streamer discharges in water easily under lower voltage. The effect of the pulse parameters

such as pulse amplitude and pulse width

on streamer channels length is investigated

and the influence mechanism of the coated-dielectric on the streamer initiation and propagation is discussed. The results demonstrate that with the increment of applied pulse amplitude and pulse width

the maximum length and the number of origin points of the streamer increase. The streamer discharges in water originate from the appearance of micro bubbles formed by the intensified electric field and the partial discharges in the dielectric coating.

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references

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