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Atmosphere 2018, 9(6), 205; https://doi.org/10.3390/atmos9060205

Origin of the Fine Scale Tortuosity in Sparks and Lightning Channels

Department of Engineering Sciences, Uppsala University, 751 21 Uppsala, Sweden
Received: 14 April 2018 / Revised: 11 May 2018 / Accepted: 21 May 2018 / Published: 24 May 2018
(This article belongs to the Section Climatology and Meteorology)
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Abstract

The physical reason for the small-scale tortuosity observed in sparks and lightning channels is unknown at present. In this paper, it is suggested that the small-scale tortuosity of the discharge channels is caused by the natural tendency for subsequent leader streamer bursts to avoid each other but at the same time to align as much as possible along the direction of the background electric field. This process will give rise to a discharge channel that re-orients in space during each streamer burst creating the small scale tortuosity. View Full-Text
Keywords: lightning; spark discharges; tortuosity; streamer bursts; leaders lightning; spark discharges; tortuosity; streamer bursts; leaders
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Cooray, V. Origin of the Fine Scale Tortuosity in Sparks and Lightning Channels. Atmosphere 2018, 9, 205.

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