Electric field distributions along helium plasma jets

作     者：George V.Naidis Natalia Yu Babaeva 

作者机构：Joint Institute for High Temperatures RAS125412 MoscowRussia 

出 版 物：《High Voltage》 (高电压（英文）)

年 卷 期：2020年第5卷第6期

页      面：650-653页

核心收录：

学科分类：080804[工学-电力电子与电力传动] 080805[工学-电工理论与新技术] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 08[工学] 0807[工学-动力工程及工程热物理] 070204[理学-等离子体物理] 0702[理学-物理学] 

基　　金：RFBR grant No.20-52-53019 

主　　题：field mixture ambient 

摘      要：Results of simulations of streamers propagating along the atmospheric-pressure helium plasma jets ejected from a thin tube into ambient air are presented. The computational model includes the equations governing the helium-air mixture composition along and across the jet, as well as the equations, describing streamer propagation in the mixture, for the electric field and the charged species densities. Streamer velocity and spatial-temporal profiles of plasma parameters are obtained for various values of the helium flow rate. It is shown, in agreement with available experimental data, that the electric field values in the heads of streamers increase nearly linearly with the distance from the tube exit and that the slope of this dependence decreases with the growth of the helium flow rate.