Preprint Brief Report Version 1 Preserved in Portico This version is not peer-reviewed

What Determines the Parameters of a Propagating Streamer: A Comparison of Outputs of the Streamer Parameter Model and of Hydrodynamic Simulations

Version 1 : Received: 29 October 2021 / Approved: 3 November 2021 / Online: 3 November 2021 (13:59:43 CET)

How to cite: Lehtinen, N.G.; Marskar, R. What Determines the Parameters of a Propagating Streamer: A Comparison of Outputs of the Streamer Parameter Model and of Hydrodynamic Simulations. Preprints 2021, 2021110081 (doi: 10.20944/preprints202111.0081.v1). Lehtinen, N.G.; Marskar, R. What Determines the Parameters of a Propagating Streamer: A Comparison of Outputs of the Streamer Parameter Model and of Hydrodynamic Simulations. Preprints 2021, 2021110081 (doi: 10.20944/preprints202111.0081.v1).

Abstract

Electric streamer discharges (streamers) in air are a very important stage of lightning, taking place before formation of the leader discharge, and with which an electric discharge starts from conducting objects which enhance the background elecric field, such as airplanes. Despite years of research, it is still not well understood what mechanism determines the values of streamer parameters, such as its radius and propagation velocity. The Streamer Parameter Model (SPM) is aimed to understand this mechanism, as well as to provide a way to efficiently calculate streamer parameters. Previously, we demonstrated that SPM results compared well with a limited set of experimental data. In this Brief Report, we compare SPM predictions to the published hydrodynamic simulation (HDS) results.

Keywords

electric streamer discharges; streamer theory; streamer parameters; plasma instabilities; partially-ionized plasmas; atmospheric electricity

Subject

EARTH SCIENCES, Atmospheric Science

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