Convergence of shock waves generated by underwater electrical explosion of cylindrical wire arrays between different boundary geometries

D. Yanuka, M. Kozlov, H. E. Zinowits, Ya E. Krasik

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The results of experiments and numerical simulations of a shock wave propagating between either conical or parabolic bounding walls are presented. The shock wave was generated by a microsecond timescale underwater electrical explosion of a cylindrical wire array supplied by a current pulse having an amplitude of ∼230kA and a rise time of ∼1μs. It is shown that with the same energy density deposition into the exploding wire array, the shock wave converges faster between parabolic walls, and as a result, the pressure in the vicinity of convergence is ∼2.3 times higher than in the case of conical walls. The results obtained are compared to those of earlier experiments [Antonov et al., Appl. Phys. Lett. 102, 124104 (2013)] with explosions of spherical wire arrays. It is shown that at a distance of ∼400μm from the implosion origin the pressure obtained in the current experiments is higher than for the case of spherical wire arrays.

Original languageEnglish
Article number102708
JournalPhysics of Plasmas
Volume22
Issue number10
DOIs
Publication statusPublished - Oct 1 2015

ASJC Scopus subject areas

  • Condensed Matter Physics

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