气流和外加磁场对负电晕放电特性的影响  

Effect of gas flow and external magnetic field on the characteristics of negative corona discharge

作　　者：张泽力 孙树伟 陈佳尧 钟方川[1] ZHANG Ze-li;SUN Shu-wei;CHEN Jia-yao;ZHONG Fang-chuan(College of Sciences,Donghua University,Shanghai 201620)

机构地区：[1]东华大学理学院,上海201620

出　　处：《核聚变与等离子体物理》2023年第4期477-481,共5页Nuclear Fusion and Plasma Physics

基　　金：国家重点研发计划(2019YFE03030001)。

摘　　要：利用线-筒电晕放电装置,研究了气体流动和外加磁场对负电晕放电的影响。当电压固定时,电晕放电电流随气体流量的增加先快速增大,并到达一个高点后迅速下降,随着流量的进一步上升,放电电流又开始缓慢增加。外加磁场能增加电晕放电的电流,但在高的气体流速下,磁场将降低电晕放电的电流,同时外加磁场增加臭氧的产生,直到温度上升导致它的快速降解。The effect of gas flow and external magnetic field on negative corona discharge was studied through the wire-cylinder corona discharge device.When the voltage is fixed,the corona discharge current increases rapidly with the increase of the gas flow rate,then drops rapidly after reaching a high value,and the discharge current climbs slowly with the increase of gas flow rate further afterwards.The addition of an external magnetic field will enhance the corona discharge current.However,in high gas flow rate,the magnetic field will cause the corona discharge current to decrease.Simultaneously,the external magnetic field causes the increase of the ozone generation until the rise of temperature leads to the rapid degradation of ozone.

关 键 词：负电晕 气体流速 磁场 放电电流 臭氧 

分 类 号：O531[理学—等离子体物理]