Underwater pulsed spark discharge influenced by the relative position between the top of a pin electrode and an insulating tube

作     者：Xudong GAO Jixuan WANG Yanfeng GAO Hongyan YAN Kaiqiang XUE Xingnan DENG Xin YANG 高旭东;王继选;高艳丰;闫红艳;薛凯强;邓星男;杨新

作者机构：School of Water Conservancy and Hydroelectric powerHebei University of EngineeringHandan 056038People's Republic of China 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2020年第22卷第5期

页      面：35-43页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 08[工学] 070204[理学-等离子体物理] 0702[理学-物理学] 

基　　金：supported by the Science and Technology Research Project of the Hebei Higher Education Institutions of China No.ZD2014031 

主　　题：discharge strength development speed of discharge channel plasma properties randomicity of spark discharge underwater pulsed spark discharge 

摘      要：Needle-to-plane geometry has been widely investigated and used in underwater pulsed *** position relationship between the needle tip and insulation layer significantly affects the discharge *** carried out experiments on underwater pulsed discharge with the needle tip protruding from,recessing into,and flushing with the insulating *** results are as ***,underwater pulsed discharge has a strong randomness under the experimental *** discharge patterns appeared under the same experimental ***,recession into the insulator surface led to a higher probability of occurrence but a lower strength of spark discharge than ***,between the needle tip protruding from and recessing into the insulation material,the average speed of propagation of underwater pulsed spark discharge decreased by an order of *** study shows that the optimum length of needle tip protruding from the insulation layer is 1 mm to obtain a strong underwater pulsed spark discharge.