Open AccessTime evolution and asymmetry of a laser produced blast wave
Author(s) -
Eleanor Tubman,
R. H. H. Scott,
Hugo Doyle,
J. Meinecke,
H. Ahmed,
R. A. B. Alraddadi,
R. Bolis,
J. E. Cross,
R. Crowston,
D. Doria,
D. Q. Lamb,
Brian Reville,
A. P. L. Robinson,
Petros Tzeferacos,
M. Borghesi,
G. Gregori,
N. C. Woolsey
Publication year - 2017
Publication title -
physics of plasmas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.75
H-Index - 160
eISSN - 1089-7674
pISSN - 1070-664X
DOI - 10.1063/1.4987038
Subject(s) - blast wave , physics , shock wave , laser , asymmetry , front (military) , shock (circulatory) , optics , explosive material , flash (photography) , spheres , radiation , plasma , mechanics , nuclear physics , astronomy , meteorology , medicine , quantum mechanics , chemistry , organic chemistry
Studies of a blast wave produced from carbon rods and plastic spheres in an argon background gas have been conducted using the Vulcan laser at the Rutherford Appleton Laboratory. A laser of 1500 J was focused onto these targets, and rear-side observations of an emission front were recorded using a fast-framing camera. The emission front is asymmetrical in shape and tends to a more symmetrical shape as it progresses due to the production of a second shock wave later in time, which pushes out the front of the blast wave. Plastic spheres produce faster blast waves, and the breakthrough of the second shock is visible before the shock stalls. The results are presented to demonstrate this trend, and similar evolution dynamics of experimental and simulation data from the FLASH radiation-hydrodynamics code are observed.
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