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

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 prese...

Full description

Saved in:
Bibliographic Details
Published in:Physics of plasmas 2013-11, Vol.20 (11)
Main Authors: Kozlov, M, Gurovich, VTz, Krasik, YaE
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Arrays
COMPARATIVE EVALUATIONS
CONVERGENCE
CYLINDRICAL CONFIGURATION
Dimensional stability
Direct power generation
Dynamic stability
Electric wire
EXPLODING WIRES
Fluid dynamics
Fluid flow
Hydrodynamics
PLASMA
PLASMA INSTABILITY
Plasma physics
PLASMA SIMULATION
SHOCK WAVES
Stability
TWO-DIMENSIONAL CALCULATIONS
UNDERWATER
Underwater explosions
Wire
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.4827262