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Zhurnal Tekhnicheskoi Fiziki, 2016, Volume 86, Issue 9, Pages 39–47
(Mi jtf6442)
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This article is cited in 3 scientific papers (total in 3 papers)
Plasma
Electric charge of a lightning ball
A. I. Grigor'ev, S. O. Shiryaeva, N. A. Petrushov P.G. Demidov Yaroslavl State University
Abstract:
The electric charge of a lightning ball is found by comparing the electrohydrodynamic stabilities of a charged drop in an electrostatic suspension and a lightning ball floating in a superposition of the gravitational field and the surface electric field. It has been assumed that the electric field strength at the surface is limited by a breakdown value. For a lightning ball radius of 15 cm, its charge is estimated as several microcoulombs. Accordingly, the density of electrostatic energy accumulated in the lightning ball is on the order of one-hundredth of a joule per square centimeter. The density of the material that constitutes the lightning ball has been estimated for the case when the electric field strength at the site of its origination is several times higher than that in fine weather. The density of the lightning ball turns out to differ from that of air by only a few percents.
Received: 23.06.2015 Revised: 20.10.2015
Citation:
A. I. Grigor'ev, S. O. Shiryaeva, N. A. Petrushov, “Electric charge of a lightning ball”, Zhurnal Tekhnicheskoi Fiziki, 86:9 (2016), 39–47; Tech. Phys., 61:9 (2016), 1319–1327
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https://www.mathnet.ru/eng/jtf6442 https://www.mathnet.ru/eng/jtf/v86/i9/p39
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