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Stability of imploding shocks generated by underwater electrical explosion of cylindrical wire array

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.4827262· OSTI ID:22218430
; ;  [1]
  1. Physics Department, Technion, Haifa 32000 (Israel)
The results of two-dimensional hydrodynamic simulations of the dynamics and stability of azimuthal non-uniformities in converging shock waves generated by an underwater explosion of a cylindrical wire array and their effect on the cumulation of energy in the vicinity of the converging axis are presented. It has been shown that in spite of the fact that such non-uniformities are always weakly unstable, for a broad range of experimentally relevant regimes these non-uniformities remain small and do not significantly affect the cumulation of energy. Only the non-uniformities with wavelengths comparable to the distance from the axis of convergence exhibit substantial growth that considerably attenuates the energy cumulation.
OSTI ID:
22218430
Journal Information:
Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 11 Vol. 20; ISSN PHPAEN; ISSN 1070-664X
Country of Publication:
United States
Language:
English