Supersonic water jets as point-like sources of extremely high pressure

D. Maler, R. Grikshtas, S. Efimov, L. Merzlikin, M. Liverts, M. Kozlov, Ya E. Krasik

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Two interacting supersonic water jets and collisions of a water jet with an aluminum target are studied experimentally and by hydrodynamic simulations. Supersonic water jets form, when shocks generated by underwater electrical explosions of conical wire arrays converge. The arrays are supplied by a ∼250 kA, ∼1 μs rise time current pulse. Underwater explosion of two conical arrays placed face to face produces jets propagating in air with velocities of ∼2.5 × 10 3 m/s leading to hot plasma formation at a temperature of ∼2200-3000 K, pressure ∼1.7 × 10 10 Pa, and density >10 29 m-3. When a single array explodes underwater in front of an aluminum target, the collision of the jet with the target produces a local pressure of ∼3 × 10 10 Pa on the surface of the target.

Original languageEnglish
Article number 022710
JournalPhysics of Plasmas
Volume30
Issue number2
DOIs
Publication statusPublished - Feb 2023

ASJC Scopus subject areas

  • Condensed Matter Physics

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