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

L. Potočňáková; J. Šperka; P. Zikán; J.J.W.A. Van Loon; J. Beckers; V. Kudrle

doi:10.1088/1361-6595/aa5ee8

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

L. Potočňáková, J. Šperka, P. Zikán, J.J.W.A. Van Loon, J. Beckers, V. Kudrle

Maxillofacial Surgery (VUmc)

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Abstract

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 language	English
Article number	045014
Number of pages	15
Journal	Plasma Sources Science and Technology
Volume	26
Issue number	4
DOIs	https://doi.org/10.1088/1361-6595/aa5ee8
Publication status	Published - 20 Mar 2017

Funding

This work was supported by the European Space Agency (ESA) SpinYourThesis! 2013 programme, Masaryk University Rector's 2013 Scholarship, project CZ.1.05/2.1.00/03.0086 funded by European Regional Development Fund and project LO1411 (NPU I) funded by Ministry of Education, Youth and Sports of Czech Republic. We would also like to thank Mr A Dowson from ESA-TEC-MMG for his kind assistance during these studies.

Funders	Funder number
European Space Agency
Ministerstvo Školství, Mládeže a Tělovýchovy
European Regional Development Fund	LO1411
Masarykova Univerzita	CZ.1.05/2.1.00/03.0086

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10.1088/1361-6595/aa5ee8

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abstract = "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.",

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AU - Potočňáková, L.

AU - Šperka, J.

AU - Zikán, P.

AU - Van Loon, J.J.W.A.

AU - Beckers, J.

AU - Kudrle, V.

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AB - 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.

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DO - 10.1088/1361-6595/aa5ee8

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JF - Plasma Sources Science and Technology

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ER -

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

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