Numerical simulation of electric explosions of metal wires

V. I. Oreshkin, R. B. Baksht, A. Yu Labetsky, N. A. Ratakhin, A. G. Rousskikh, A. V. Shishlov, P. R. Levashov, K. V. Khishchenko, I. V. Glazyrin, I. Beilis

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

Abstract

The successful application of z-pinches as high-power X-ray sources has aroused interest in the study of electric explosion of wires, particularly in vacuum. A large body of experimental data suggests that the explosion of a wire in vacuum is accompanied by the formation of strata and low-density plasma corona surrounding a dense core. It seems likely that early in the explosion this low-density corona consists of a gaseous matter, which is initially sorbed by the wire surface, while later in the process it is formed by metal vapors. We have already simulated the explosion of wires in a liquid dielectric with the use of a 1D magnetohydrodynamic (MHD) code based on the Lagrangian approach, and the results obtained have shown a good agreement with experimental data. However, with this code it is fundamentally difficult to simulate the explosion of wires in vacuum, since the MHD equations are approximated on a grid associated with the mass coordinates of the fluid, thus making impossible a correct simulation of the processes involving very large density differences. In case of the electric explosions of wires in vacuum, the density of a liquid metal is several orders of magnitude higher than that of vapors surrounding it. Therefore, it would appear more reasonable to simulate the process by the particle-in-cell method (the PIC method), where the particles moving on a fixed computational grid (Eulerian grid) are taken to be Lagrangian components.

Original languageEnglish
Title of host publicationIEEE International Conference on Plasma Science
Pages190
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

ASJC Scopus subject areas

  • Condensed Matter Physics

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