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DOI	10.1016/j.atmosres.2021.105685
	On a possible mechanism of space stem formation at the negative corona streamer burst periphery
	Syssoev A.A.; Iudin D.I.
发表日期	2021
ISSN	0169-8095
卷号	259
英文摘要	It's a common knowledge for spark discharge researches that negative leaders in air always propagate in a step-wise manner. A new step forms when a space leader attaches to the primary negative one. Space leaders originate from small fusiform plasma formations which are called space stems. For now, there is no any established idea about how space stems form in conditions when the background electric field inside the negative corona volume is about three times less than the dielectric strength of air. In this study, we propose a new mechanism of space stem precursors formation which is based on the joint action of ionization and electron drifting processes occurring at the negative corona streamer burst boundary in the presence of strongly inhomogeneous stochastic electric field. It is supposed that electric field fluctuations are formed by chaotically positioned clusters of negative charge which can be considered as basic elements of spatio-temporal noise and are transported into the negative corona volume by negative streamer heads. The last are emanated from the newly-formed leader tip during the development of the negative corona streamer burst finishing the step-formation process. The model is applied to specify conditions under which space stem precursor genesis is possible and to analyze the peculiarities of proposed mechanism at different altitudes above sea level. © 2021 Elsevier B.V.
英文关键词	Negative corona streamer burst; Negative leader; Numerical simulation; Space stems; Spatio-temporal noise; Stochastic dynamics
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/236695
作者单位	Institute of Applied Physics RAS, 46 Ul'yanov str., Nizhny Novgorod, 603950, Russian Federation; Privolzhsky Research Medical University, 10/1 Minina and Pojarskogo Sqr., Nizhny Novgorod, 603005, Russian Federation; National Research University Higher School of Economics, 20 Myasnitskaya str., Moscow, 101000, Russian Federation
推荐引用方式 GB/T 7714	Syssoev A.A.,Iudin D.I.. On a possible mechanism of space stem formation at the negative corona streamer burst periphery[J],2021,259.
APA	Syssoev A.A.,&Iudin D.I..(2021).On a possible mechanism of space stem formation at the negative corona streamer burst periphery.Atmospheric Research,259.
MLA	Syssoev A.A.,et al."On a possible mechanism of space stem formation at the negative corona streamer burst periphery".Atmospheric Research 259(2021).