Nanosecond time scale, high power electrical wire explosion in water

A. Grinenko, Ya E. Krasik, S. Efimov, A. Fedotov, V. Tz Gurovich, V. I. Oreshkin

Research output: Contribution to journalArticle

69 Citations (Scopus)

Abstract

Experimental and magnetohydrodynamic simulation results of nanosecond time scale underwater electrical explosions of Al, Cu, and W wires are presented. A water forming line generator with current amplitude up to 100 kA was used. The maximum current rise rate and maximum Joule heating power achieved during wire explosions were dIdt≤500 Ans and 6 GW, respectively. Extremely high energy deposition of up to 60 times the atomization enthalpy was registered compared to the best reported result of 20 times the atomization enthalpy for energy deposition with a vacuum wire explosion. Discharge channel evolution and surface temperature were analyzed by streak shadow imaging and by a fast photodiode with a set of interference filters, respectively. A 1D magnetohydrodynamic simulation demonstrated good agreement with experimental parameters such as discharge channel current, voltage, radius, and temperature. Material conductivity was calculated to produce the best correlation between the simulated and experimentally obtained voltage. It is shown that material conductivity may significantly vary as a function of energy deposition rate.

Original languageEnglish
Article number042701
JournalPhysics of Plasmas
Volume13
Issue number4
DOIs
Publication statusPublished - 15 May 2006
Externally publishedYes

Fingerprint

explosions
magnetohydrodynamic simulation
atomizing
wire
enthalpy
water
conductivity
Joule heating
electric potential
surface temperature
photodiodes
energy
generators
interference
filters
vacuum
radii
temperature
simulation

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Grinenko, A., Krasik, Y. E., Efimov, S., Fedotov, A., Gurovich, V. T., & Oreshkin, V. I. (2006). Nanosecond time scale, high power electrical wire explosion in water. Physics of Plasmas, 13(4), [042701]. https://doi.org/10.1063/1.2188085

Nanosecond time scale, high power electrical wire explosion in water. / Grinenko, A.; Krasik, Ya E.; Efimov, S.; Fedotov, A.; Gurovich, V. Tz; Oreshkin, V. I.

In: Physics of Plasmas, Vol. 13, No. 4, 042701, 15.05.2006.

Research output: Contribution to journalArticle

Grinenko, A, Krasik, YE, Efimov, S, Fedotov, A, Gurovich, VT & Oreshkin, VI 2006, 'Nanosecond time scale, high power electrical wire explosion in water', Physics of Plasmas, vol. 13, no. 4, 042701. https://doi.org/10.1063/1.2188085
Grinenko A, Krasik YE, Efimov S, Fedotov A, Gurovich VT, Oreshkin VI. Nanosecond time scale, high power electrical wire explosion in water. Physics of Plasmas. 2006 May 15;13(4). 042701. https://doi.org/10.1063/1.2188085
Grinenko, A. ; Krasik, Ya E. ; Efimov, S. ; Fedotov, A. ; Gurovich, V. Tz ; Oreshkin, V. I. / Nanosecond time scale, high power electrical wire explosion in water. In: Physics of Plasmas. 2006 ; Vol. 13, No. 4.
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