期刊
JOURNAL OF PHYSICS D-APPLIED PHYSICS
卷 43, 期 40, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0022-3727/43/40/402001
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The results of a two-dimensional numerical simulation of positive streamer propagation in atmospheric-pressure helium jets injected into ambient air are presented. It is shown that depending on the jet width and the initial radial distribution of electron number density streamer structures of two types can be formed: one with maxima of electric field and electron density at the jet axis and another with maxima of these parameters near the boundary between the jet and surrounding air. The latter structure is similar to the observed ring-shaped structures of plasma bullets.
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