Discharge electrode configuration effects on the performance of a plasma sparker

作     者：裴彦良 张连成 黄逸凡 严辉 朱鑫磊 刘振 闫克平 

作者机构：Key Laboratory of Marine Sedimentology and Environmental GeologyFirst Institute of OceanographySOA Laboratory for Marine GeologyQingdao National Laboratory for Marine Science and Technology Institute of Industrial Ecology and EnvironmentCollege of Chemical and Biological EngineeringZhejiang University 

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

年 卷 期：2017年第19卷第9期

页      面：48-55页

核心收录：

学科分类：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] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the National Key R&D Program of China under Grant 2016YFC0303901 NSFC with grant numbers:U1606401,41476080,21276232 and 51377145 Public Science and Technology Research Funds Projects of Ocean with grant number:201405036-2 NSF of Zhejiang Province with grant number:LQ14D060004,LY13E070002 and 2014C33022 Program for Zhejiang Leading Team of S&T Innovation with grant number:2013TD07 Research Fund for the Taishan Scholar Project of Shandong Province with grant number:TSPD20161007 

主　　题：negligible collapse bubble radius decreasing preferred neglected initially Figure intense 

摘      要：A multi-electrode array is commonly applied in a plasma sparker to generate stable acoustic pulses.In this paper, the effects of the electrode configuration on the performance of a plasma sparker have been investigated. In terms of the load electrical characteristics, the electrode radius and distance have negligible influence on the electric characteristics, whereas a larger electrode number results in a smaller voltage and a larger current but has little effect on the load energy. Regarding the acoustic characteristics, both the expansion and collapse pulses can be increased by decreasing the electrode tip radius. the influence of the electrode number and electrode gap distance on the amplitude of the expansion pulse was found to be negligible. And the amplitude of the collapse pulse decreases significantly with increasing electrode number. Increasing the electrode number decreases the energy efficiency for intense bubble interactions, thus, a small electrode tip radius and a small electrode number are preferred for the design of a plasma sparker if the total discharge energy is given.