We have obtained a Thomson scattering spectrum in the collective regime by scattering a probe beam from a shock front, in an experiment conducted at the Omega laser at the Laboratory for Laser Energetics. The probe beam was created by frequency converting a beamline at Omega to a 2 ns pulse of 0.263 m light, focused with a dedicated optical focusing system. The diagnostic system included collec...

The numerical computation of supercritical fluid flows is extremely challenging because of the complexity of the physical processes and the disparity of the space and time scales involved. Supercritical fluids exhibit large density fluctuations especially very close to the critical region. In this region, the perfect gas law is no longer valid and has to be replaced by a specific equation of st...

0020-7683/$ see front matter 2012 Elsevier Ltd. A http://dx.doi.org/10.1016/j.ijsolstr.2012.10.015 ⇑ Corresponding author. E-mail addresses: [email protected] (L.E. P (R. Deiterding), [email protected] (K. Inaba), jo (J. Shepherd), [email protected] (M. Ortiz). We experimentally and numerically investigate the response of fluid-filled filament-wound composite tubes subjected to ax...

Compressible vortex rings are usually formed at the open end of a shock tube. They show exciting flow phenomena during their formation, evolution, and propagation depending on Mach number (Ms) exit conditions. This study considers high tube pressure ratio (PR) cases showing hitherto unknown, spectacular structures. With hydrogen as driver section gas PR, supersonic compressible ring having (Mv)...

The mechanism of blast damage to steel-clad concrete-filled steel tube (SCCFST) arched protective doors is studied using the dynamic response characteristics such loads under action shock wave loads, and ultimate load-bearing capacity formula derived based on “plastic hinge” mode limit analysis, which explores effect wave. design parameters each component door subjected waves discussed. Results...

We recall two conservative schemes recently proposed for the numerical solution of hyperbolic interface problems. Then, we compare the two schemes on a piston problem and a shock tube problem.