Shock wave convergence in water with parabolic wall boundaries

Journal Article · Tue Apr 28 04:00:00 EDT 2015 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4919604· OSTI ID:22402909

Yanuka, D.; Shafer, D.; Krasik, Ya. ^[1]

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1. Physics Department, Technion, Haifa 32000 (Israel)

The convergence of shock waves in water, where the cross section of the boundaries between which the shock wave propagates is either straight or parabolic, was studied. The shock wave was generated by underwater electrical explosions of planar Cu wire arrays using a high-current generator with a peak output current of ∼45 kA and rise time of ∼80 ns. The boundaries of the walls between which the shock wave propagates were symmetric along the z axis, which is defined by the direction of the exploding wires. It was shown that with walls having a parabolic cross section, the shock waves converge faster and the pressure in the vicinity of the line of convergence, calculated by two-dimensional hydrodynamic simulations coupled with the equations of state of water and copper, is also larger.

• OSTI ID: 22402909
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 16 Vol. 117; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COMPUTERIZED SIMULATION
CONVERGENCE
COPPER
ELECTRIC CURRENTS
EQUATIONS OF STATE
EXPLODING WIRES
PULSE RISE TIME
SHOCK WAVES
TWO-DIMENSIONAL CALCULATIONS
UNDERWATER
WATER
WAVE PROPAGATION