Preprint Article Version 1 This version is not peer-reviewed

Origin of the Fine Scale Tortuosity in Sparks and Lightning Channels

Version 1 : Received: 14 April 2018 / Approved: 18 April 2018 / Online: 18 April 2018 (06:21:29 CEST)

A peer-reviewed article of this Preprint also exists.

Cooray, V. Origin of the Fine Scale Tortuosity in Sparks and Lightning Channels. Atmosphere 2018, 9, 205. Cooray, V. Origin of the Fine Scale Tortuosity in Sparks and Lightning Channels. Atmosphere 2018, 9, 205.

Journal reference: Atmosphere 2018, 9, 205
DOI: 10.3390/atmos9060205

Abstract

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.

Subject Areas

lightning; spark discharges; tortuosity; streamer bursts; leaders

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