Study of the Mechanism of Filamentation of Nanosecond Surface Barrier Discharge. Part 1. Local Field Approximation

The applicability of the previously proposed mechanism of filamentation of a surface barrier discharge in nitrogen by a nanosecond voltage pulse of positive polarity to the description of a similar process in nitrogen and air in the case of a pulse of negative polarity is studied numerically. The ca...

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Bibliographic Details
Published inPlasma physics reports Vol. 50; no. 1; pp. 133 - 143
Main Authors Solov’ev, V. R., Lisitsyn, D. A., Karavaeva, N. I.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 2024
Springer Nature B.V
Subjects
Approximation
Atomic
Density gradients
Discharge
Electron density
Low-Temperature Plasma
Mathematical analysis
Molecular
Nitrogen
Optical and Plasma Physics
Physics
Physics and Astronomy
local field approximation
streamer
filament
surface barrier discharge
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Summary:The applicability of the previously proposed mechanism of filamentation of a surface barrier discharge in nitrogen by a nanosecond voltage pulse of positive polarity to the description of a similar process in nitrogen and air in the case of a pulse of negative polarity is studied numerically. The calculation results show that in this case, in nitrogen and air, there are also signs of the successful simulation of the filamentation effect, but at the same time, the overall dynamics of the discharge development differs qualitatively from that observed in the experiment. It is assumed that the origin of the unsuccessful simulation is the roughness of the local field approximation used in regions with sharp electron density gradients inherent to the filamentation zone.
ISSN:1063-780X
1562-6938
DOI:10.1134/S1063780X23601839