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Title: Simulation of nonstationary phenomena in atmospheric-pressure glow discharge

Abstract

Nonstationary processes in atmospheric-pressure glow discharge manifest themselves in spontaneous transitions from the normal glow discharge into a spark. In the experiments, both so-called completed transitions in which a highly conductive constricted channel arises and incomplete transitions accompanied by the formation of a diffuse channel are observed. A model of the positive column of a discharge in air is elaborated that allows one to interpret specific features of the discharge both in the stationary stage and during its transition into a spark and makes it possible to calculate the characteristic oscillatory current waveforms for completed transitions into a spark and aperiodic ones for incomplete transitions. The calculated parameters of the positive column in the glow discharge mode agree well with experiment. Data on the densities of the most abundant species generated in the discharge (such as atomic oxygen, metastable nitrogen molecules, ozone, nitrogen oxides, and negative oxygen ions) are presented.

Authors:
; ; ; ; ; ;  [1]
  1. Russian Academy of Sciences, Institute for High-Current Electronics, Siberian Branch (Russian Federation)
Publication Date:
OSTI Identifier:
22614116
Resource Type:
Journal Article
Resource Relation:
Journal Name: Plasma Physics Reports; Journal Volume: 42; Journal Issue: 6; Other Information: Copyright (c) 2016 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AIR; ATMOSPHERIC PRESSURE; GLOW DISCHARGES; MOLECULES; NITROGEN; NITROGEN OXIDES; OXYGEN; OXYGEN IONS; OZONE; PLASMA SIMULATION; POSITIVE COLUMN; WAVE FORMS

Citation Formats

Korolev, Yu. D., E-mail: korolev@lnp.hcei.tsc.ru, Frants, O. B., Nekhoroshev, V. O., Suslov, A. I., Kas’yanov, V. S., Shemyakin, I. A., and Bolotov, A. V. Simulation of nonstationary phenomena in atmospheric-pressure glow discharge. United States: N. p., 2016. Web. doi:10.1134/S1063780X16060052.
Korolev, Yu. D., E-mail: korolev@lnp.hcei.tsc.ru, Frants, O. B., Nekhoroshev, V. O., Suslov, A. I., Kas’yanov, V. S., Shemyakin, I. A., & Bolotov, A. V. Simulation of nonstationary phenomena in atmospheric-pressure glow discharge. United States. doi:10.1134/S1063780X16060052.
Korolev, Yu. D., E-mail: korolev@lnp.hcei.tsc.ru, Frants, O. B., Nekhoroshev, V. O., Suslov, A. I., Kas’yanov, V. S., Shemyakin, I. A., and Bolotov, A. V. 2016. "Simulation of nonstationary phenomena in atmospheric-pressure glow discharge". United States. doi:10.1134/S1063780X16060052.
@article{osti_22614116,
title = {Simulation of nonstationary phenomena in atmospheric-pressure glow discharge},
author = {Korolev, Yu. D., E-mail: korolev@lnp.hcei.tsc.ru and Frants, O. B. and Nekhoroshev, V. O. and Suslov, A. I. and Kas’yanov, V. S. and Shemyakin, I. A. and Bolotov, A. V.},
abstractNote = {Nonstationary processes in atmospheric-pressure glow discharge manifest themselves in spontaneous transitions from the normal glow discharge into a spark. In the experiments, both so-called completed transitions in which a highly conductive constricted channel arises and incomplete transitions accompanied by the formation of a diffuse channel are observed. A model of the positive column of a discharge in air is elaborated that allows one to interpret specific features of the discharge both in the stationary stage and during its transition into a spark and makes it possible to calculate the characteristic oscillatory current waveforms for completed transitions into a spark and aperiodic ones for incomplete transitions. The calculated parameters of the positive column in the glow discharge mode agree well with experiment. Data on the densities of the most abundant species generated in the discharge (such as atomic oxygen, metastable nitrogen molecules, ozone, nitrogen oxides, and negative oxygen ions) are presented.},
doi = {10.1134/S1063780X16060052},
journal = {Plasma Physics Reports},
number = 6,
volume = 42,
place = {United States},
year = 2016,
month = 6
}
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  • The prebreakdown phenomena and the formation process of the glow discharge in a low-pressure Ar gas were investigated under a uniform field gap. Prebreakdown phenomena were observed for 0.5Torrcm{le}pd{le}2Torrcm (where p is pressure, d the gap distance) in Ar gas under conditions of a slowly increasing voltage. It was observed that the prebreakdown phenomena formed pulse discharges up to the transition to the glow discharge. The amplitudes of the photon and current pulses due to the pulse discharge increased with time, and then decreased as soon as the transition to a steady glow discharge occurred. When the overvoltage or externalmore » series resistance was increased, the pulse amplitudes increased with the applied voltage and decreased with the resistance. The characteristics of the prebreakdown phenomena were changed by the shape of the electrodes. The formation mechanism of the glow discharge can be qualitatively explained by that of the streamer in a high-pressure discharge. The transient glow discharge was observed, and its duration increased with an increase in resistance. The instability of the glow discharge was controlled by three factors, namely, Kaufmann{close_quote}s criterion, the Child{endash}Langmuir law, and the density balance between the production and removal rates of electrons. {copyright} 2001 American Institute of Physics.« less
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