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	Study on photoionization produced by discharge in atmospheric air by numerical method
	Zhang Yun ; Zeng Rong ; Yang Xue-chang ; Zhang Bo ; He Jin-liang
	2010-10-12 ; 2010-10-12
关键词	Practical Theoretical or Mathematical/ atmospheric ionisation numerical analysis photoionisation radiative transfer/ atmospheric air numerical method photoionization model Zhelezniak numerical simulation streamer discharge radiative transfer rod-plane air gap secondary avalanche positive streamer dynamics electric field distribution streamer speed/ A9260L Ionic interactions and processes in the lower atmosphere A9265D Atmospheric optical propagation, radiative transfer A0260 Numerical approximation and analysis
中文摘要	The photoionization model developed by Zhelezniak is introduced into the numerical simulation of streamer discharge in atmospheric air. Due to the non-locality of radiative transfer, the photoionization model involves describing radiative relations between all points of the plasma. To overcome the enormous effort required for calculation of photoionization in gas discharge problems, some simplified methods are implemented in this paper. The results of streamer discharge in rod-plane air gap with and without the process of photoionization are compared by numerical method. It shows that the photoionization offers the seed electron of secondary avalanche which is indispensable for streamer, so the streamer can't develop without photoionization. The results of two-dimensional modeling of positive streamer dynamics in rod-plane gap are presented. The electric field distribution, streamer speed, radius of streamer channel predicted by the simulation is in good agreement with experimental measurement.
语种	中文
出版者	Editorial Board of Proceedings of the Chinese Society for Electrical Engineering ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/82447]
专题	清华大学
推荐引用方式 GB/T 7714	Zhang Yun,Zeng Rong,Yang Xue-chang,et al. Study on photoionization produced by discharge in atmospheric air by numerical method[J],2010, 2010.
APA	Zhang Yun,Zeng Rong,Yang Xue-chang,Zhang Bo,&He Jin-liang.(2010).Study on photoionization produced by discharge in atmospheric air by numerical method..
MLA	Zhang Yun,et al."Study on photoionization produced by discharge in atmospheric air by numerical method".(2010).

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