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Numerical Computations of Transition Processes in Direct Current Corona Microdischarge

Russian Physics Journal, ISSN: 1573-9228, Vol: 65, Issue: 1, Page: 156-168
2022
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Article Description

The paper presents the expanded hydrodynamic model of the corona microdischarge under atmospheric pressure in argon with regard to the cathode apex heating. Numerical computations demonstrate two operating modes of the negative corona discharge, namely pulse-periodic and glow discharges. All main parameters are obtained for both corona discharges. It is found that Trichel pulse formation is similar to a transition from the Townsend avalanche to glow discharge and self-oscillations manifested themselves as a classical discharge created by planar electrodes.

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