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 language | English |
|---|---|
| Title of host publication | IEEE International Conference on Plasma Science |
| Pages | 190 |
| Number of pages | 1 |
| Publication status | Published - 2004 |
| Externally published | Yes |
| Event | IEEE Conference Record - Abstracts: The 31st IEEE International Conference on Plasma Science, ICOPS2004 - Baltimore, MD, United States Duration: 28 Jun 2004 → 1 Jul 2004 |
Other
| Other | IEEE Conference Record - Abstracts: The 31st IEEE International Conference on Plasma Science, ICOPS2004 |
|---|---|
| Country | United States |
| City | Baltimore, MD |
| Period | 28.6.04 → 1.7.04 |
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ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Numerical simulation of electric explosions of metal wires. / Oreshkin, V. I.; Baksht, R. B.; Labetsky, A. Yu; Ratakhin, N. A.; Rousskikh, A. G.; Shishlov, A. V.; Levashov, P. R.; Khishchenko, K. V.; Glazyrin, I. V.; Beilis, I.
IEEE International Conference on Plasma Science. 2004. p. 190 2P35.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Numerical simulation of electric explosions of metal wires
AU - Oreshkin, V. I.
AU - Baksht, R. B.
AU - Labetsky, A. Yu
AU - Ratakhin, N. A.
AU - Rousskikh, A. G.
AU - Shishlov, A. V.
AU - Levashov, P. R.
AU - Khishchenko, K. V.
AU - Glazyrin, I. V.
AU - Beilis, I.
PY - 2004
Y1 - 2004
N2 - 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.
AB - 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=19944434077&partnerID=8YFLogxK
M3 - Conference contribution
SP - 190
BT - IEEE International Conference on Plasma Science
ER -