Experimental study of gliding arc plasma channel motion: Buoyancy and gas flow phenomena under normal and hypergravity conditions

Lucia Potočňáková, Jiři Šperka, Petr Zikán, Jack J.W.A. Van Loon, Job Beckers, Vit Kudrle

Research output: Contribution to journalArticleAcademicpeer-review


The details of plasma channel motion are investigated by frame-by-frame image analysis of high speed recording of a gliding arc. The gliding arc is operated in several noble gases at various flow rates, voltages and artificial gravity levels. Several peculiarities in evolution of individual glides are observed, described and discussed, such as accelerating motion of plasma channel or shortcutting events of various kinds. Statistics of averaged parameters are significantly different for buoyancy and gas drag dominated regimes, which is put into relation with differing flow patterns for hypergravity and high gas flow.

Original languageEnglish
Article number045014
JournalPlasma Sources Science and Technology
Issue number4
Publication statusPublished - 20 Mar 2017

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