Open AccessExtrusion of a nanosecond surface discharge plasma near a dielectric ledge
Author(s) -
I. A. Znamenskaya,
D. I. Tatarenkova,
И. В. Мурсенкова,
Т. А. Кули-Заде,
E.A. Karnozova
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2100/1/012010
Subject(s) - nanosecond , dielectric barrier discharge , plasma , materials science , glow discharge , ignition system , atomic physics , dielectric , analytical chemistry (journal) , chemistry , optics , optoelectronics , physics , laser , chromatography , quantum mechanics , thermodynamics
The presence of a dielectric ledge along the pulse discharge propagation led to a redistribution of the pulsed surface (plasma sheets) discharge glow. Discharge glow on the surface without the ledge, was uniform and lasted no more than 200 ns . Two plasma channels with increased glow intensity were observed near the rectangular ledge placed in the discharge area. The duration of these longitudinal plasma channels increased and lasted for about 0.9 μs (at a voltage of 25 kV and a density of 0.03 – 0.18 kg/m 3 ). A nine-frame nanosecond camera recorded the evolution of the plasma glow. The dynamics of the flow induced by the pulse surface discharge was recorded using a high-speed shadow imaging during 40-50 μs after the ignition of the discharge.