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 language | English |
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Article number | 102708 |
Journal | Physics of Plasmas |
Volume | 22 |
Issue number | 10 |
DOIs | |
Publication status | Published - Oct 1 2015 |
ASJC Scopus subject areas
- Condensed Matter Physics