Numerical study of initial gas temperature impact on plasma characteristics of argon switch discharge

In this paper, a two-dimensional fluid model based on plasma chemistry was employed to numerically simulate the streamer discharge process in an argon spark switch. The two electrodes of the argon switch adopted a rod–rod structure with hemispherical heads. The distributions of plasma parameters, in...

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Bibliographic Details
Published in:AIP advances Vol. 15; no. 4; pp. 045101 - 045101-10
Main Authors: Zheng, Shichao, Sun, Rongrong, Liu, Hanlin, Ma, Linlin
Format: Journal Article
Language:English
Published: Melville American Institute of Physics 01.04.2025
AIP Publishing LLC
Subjects:
Argon
Breakdown
Discharge
Electric field strength
Gas temperature
Parameters
Particle density (concentration)
Plasma chemistry
Streamer gas discharge
Time lag
ISSN:2158-3226, 2158-3226
Online Access:Get full text
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Summary:In this paper, a two-dimensional fluid model based on plasma chemistry was employed to numerically simulate the streamer discharge process in an argon spark switch. The two electrodes of the argon switch adopted a rod–rod structure with hemispherical heads. The distributions of plasma parameters, including particle density, current, and electric field strength at various times, were acquired and subjected to analysis. In addition, the effect of different initial gas temperatures (300–400 K) on plasma characteristic parameters, such as the breakdown time delay of the streamer discharge and the electric field strength of streamer head, was investigated. Linear fitting functions for breakdown time delay and average electric field strength under different initial gas temperatures were proposed separately. This research can provide theoretical guidance on the influence of different initial gas temperatures on plasma characteristic parameters in the streamer discharge process of a gas switch.
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ISSN:2158-3226
2158-3226
DOI:10.1063/5.0266380