Effect of the thermal instability on the conductor electrical explosion

R. B. Baksht, V. I. Oreshkin, N. A. Ratakhin, A. G. Rousskich, A. Yu Labetsky, A. V. Shishlov, P. R. Levashov, K. V. Khitschenko, I. I. Beilis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An electrical explosion of thin metal wires at a current rise time of several tens of nanoseconds and at a current density of ∼10 8 A/cm 2 was studied. The experimental results with the LC generator (67 nF, 730 nH) at the 5-20 kV voltage are described and compared with the simulation ones. Simulation model used a wire explosion based on the matter phase transfers. A two-dimensional magnetohydrodynamic code based on the particle-in-cell method is used to consider the formation of striations and a low-density plasma corona surrounding the wire. The striations are shown to occur through evolving overheat instabilities early in the explosion, when the conductor material is in the liquid or two-phase states. The process owes to the decrease in liquid metal conductivity with temperature increasing and density decreasing. Comparison between the experiment and simulation demonstrates the acceptable coincidence.

Original languageEnglish
Title of host publicationIEEE International Conference on Plasma Science
Pages294
Number of pages1
Publication statusPublished - 2004
Externally publishedYes
EventIEEE Conference Record - Abstracts: The 31st IEEE International Conference on Plasma Science, ICOPS2004 - Baltimore, MD, United States
Duration: 28 Jun 20041 Jul 2004

Other

OtherIEEE Conference Record - Abstracts: The 31st IEEE International Conference on Plasma Science, ICOPS2004
CountryUnited States
CityBaltimore, MD
Period28.6.041.7.04

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ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Baksht, R. B., Oreshkin, V. I., Ratakhin, N. A., Rousskich, A. G., Labetsky, A. Y., Shishlov, A. V., ... Beilis, I. I. (2004). Effect of the thermal instability on the conductor electrical explosion. In IEEE International Conference on Plasma Science (pp. 294). [4P37]