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Experimental Study of a Long-Living Plasmoid Using High-Speed Filming.
- Source :
-
IEEE Transactions on Plasma Science . Dec2017 Part 2, Vol. 45 Issue 12, p3160-3165. 6p. - Publication Year :
- 2017
-
Abstract
- This paper describes the time evolution of ball plasmoids generated by millisecond atmospheric discharge in contact with water. The aim of this paper was to clarify an initiation and a formation mechanism of an atmospheric ball plasmoid. The use of a higher frame rate of filming and shorter exposition time, in comparison with past experiments, allows us to observe the fast processes that occur during a plasmoid evolution. We assert that an initial electrical breakdown in a cathode ceramic tube filled by a conductive liquid is essential for further plasmoid formation. It generates a shock wave resulting in a blast of conductive liquid. The resulting expansion of water vapor and bubbles with an addition of weekly ionized plasma serves as a main source of matter for plasmoid formation. We also note that an electrical arc generated after the breakdown transforms to a plasma jet. This jet accelerates plasma to the plasmoid. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ELECTRIC arc
*SPHEROMAKS
*SHOCK waves
*ATMOSPHERIC pressure
*PLASMA jets
Subjects
Details
- Language :
- English
- ISSN :
- 00933813
- Volume :
- 45
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Plasma Science
- Publication Type :
- Academic Journal
- Accession number :
- 127948643
- Full Text :
- https://doi.org/10.1109/TPS.2017.2770224