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Title: Generation of extreme state of water by spherical wire array underwater electrical explosion

Abstract

The results of the first experiments on the underwater electrical explosion of a spherical wire array generating a converging strong shock wave are reported. Using a moderate pulse power generator with a stored energy of {<=}6 kJ and discharge current of {<=}500 kA with a rise-time of {approx}300 ns, explosions of Cu and Al wire arrays of different diameters and with a different number and diameter of wires were tested. Electrical, optical, and destruction diagnostics were used to determine the energy deposited into the array, the time-of-flight of the shock wave to the origin of the implosion, and the parameters of water at that location. The experimental and numerical simulation results indicate that the convergence of the shock wave leads to the formation of an extreme state of water in the vicinity of the implosion origin that is characterized by pressure, temperature, and compression factors of (2 {+-} 0.2) Multiplication-Sign 10{sup 12} Pa, 8 {+-} 0.5 eV, and 7 {+-} 0.5, respectively.

Authors:
; ; ; ; ;  [1]
  1. Physics Department, Technion, Haifa 3200 (Israel)
Publication Date:
OSTI Identifier:
22068827
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 19; Journal Issue: 10; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 42 ENGINEERING; COMPRESSION; COMPUTERIZED SIMULATION; ELECTRIC DISCHARGES; EXPLODING WIRES; IMPLOSIONS; PULSE RISE TIME; SHOCK WAVES; SPHERICAL CONFIGURATION; STORED ENERGY; TIME-OF-FLIGHT METHOD; UNDERWATER; WATER

Citation Formats

Antonov, O, Gilburd, L, Efimov, S, Bazalitski, G, Gurovich, V Tz, and Krasik, Ya E. Generation of extreme state of water by spherical wire array underwater electrical explosion. United States: N. p., 2012. Web. doi:10.1063/1.4757984.
Antonov, O, Gilburd, L, Efimov, S, Bazalitski, G, Gurovich, V Tz, & Krasik, Ya E. Generation of extreme state of water by spherical wire array underwater electrical explosion. United States. https://doi.org/10.1063/1.4757984
Antonov, O, Gilburd, L, Efimov, S, Bazalitski, G, Gurovich, V Tz, and Krasik, Ya E. 2012. "Generation of extreme state of water by spherical wire array underwater electrical explosion". United States. https://doi.org/10.1063/1.4757984.
@article{osti_22068827,
title = {Generation of extreme state of water by spherical wire array underwater electrical explosion},
author = {Antonov, O and Gilburd, L and Efimov, S and Bazalitski, G and Gurovich, V Tz and Krasik, Ya E},
abstractNote = {The results of the first experiments on the underwater electrical explosion of a spherical wire array generating a converging strong shock wave are reported. Using a moderate pulse power generator with a stored energy of {<=}6 kJ and discharge current of {<=}500 kA with a rise-time of {approx}300 ns, explosions of Cu and Al wire arrays of different diameters and with a different number and diameter of wires were tested. Electrical, optical, and destruction diagnostics were used to determine the energy deposited into the array, the time-of-flight of the shock wave to the origin of the implosion, and the parameters of water at that location. The experimental and numerical simulation results indicate that the convergence of the shock wave leads to the formation of an extreme state of water in the vicinity of the implosion origin that is characterized by pressure, temperature, and compression factors of (2 {+-} 0.2) Multiplication-Sign 10{sup 12} Pa, 8 {+-} 0.5 eV, and 7 {+-} 0.5, respectively.},
doi = {10.1063/1.4757984},
url = {https://www.osti.gov/biblio/22068827}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 10,
volume = 19,
place = {United States},
year = {Mon Oct 15 00:00:00 EDT 2012},
month = {Mon Oct 15 00:00:00 EDT 2012}
}