An additional mechanism of spark electroconductive channel transversal evolution during transition to arc

Authors

  • K. V. Korytchenko National Technical University "Kharkiv Polytechnic Institute", Ukraine
  • E. V. Poklonskiy National Technical University "Kharkiv Polytechnic Institute", Ukraine
  • V. F. Bolyukh National Technical University "Kharkiv Polytechnic Institute", Ukraine https://orcid.org/0000-0001-9115-7828

DOI:

https://doi.org/10.20998/2074-272X.2012.5.14

Keywords:

spark, electroconductive channel, two-temperature models, electronic heat conductivity

Abstract

An additional mechanism of electroconductive channel evolution due to electronic heat conductivity in nonequilibrium plasma is considered in the work. Two-temperature models of stationary arcs are considered, the condition of the models application to simulating the arc phase of a spark discharge is validated. The given condition is based on ionization equilibrium time estimation. A mathematical model of electroconductive region expansion through mechanism of electronic heat conductivity is presented. Influence of the gas-discharge medium pressure, the plasma heavy component temperature gradient, the electric field strength on the electroconductive region evolution dynamics is investigated.

References

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Published

2012-12-14

How to Cite

Korytchenko, K. V., Poklonskiy, E. V., & Bolyukh, V. F. (2012). An additional mechanism of spark electroconductive channel transversal evolution during transition to arc. Electrical Engineering & Electromechanics, (5), 63–70. https://doi.org/10.20998/2074-272X.2012.5.14

Issue

Section

Engineering Electrophysics. High Electric and Magnetic Field Engineering

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