Demonstration of repeatability in a high-energy-density planar shear mixing layer experiment

Modeling hydrodynamics, magnetic fields, and synthetic radiographs for high-energy-density plasma flows in shock-shear targets

“…As shown in Fig. 5, the overall picture of hydrodynamical evolution is still similar to previous shock-shear experiments without a window [28,30,34,35], although the plasma plume carries mass and energy away from the tube. At later times, the shock can penetrate through the wall.…”

“…In the synthetic radiographs, the spatial scales of the synthetic radiographs are divided by the magnification to align with the scales on the target system. The target we use in this work are different from previous shock-shear experiments [28,30,34,35] mainly in two aspects: (1) cut slots in the layer for seeding density perturbation, (c) The dimension of the shock tube, the window and the end cap. The beryllium shock tube has a oval-shape window in the middle.…”

“…The shock-shear platform [23,24], as a platform to isolatedly study the shear-induced instabilities and turbulence production under HED conditions, i.e. pressure larger than 1Mbar, has been used to investigate the turbulent mixing [26,27] at material interfaces when subject to multiple shocks and reshocks or high-speed shear [23,28]. The experiments [29][30][31][32][33] using the shockshear platform has been carried out on the OMEGA Laser Facility and National Ignition Facility (NIF).…”

A journey through high-energy-density physics

“…It began with the first experiments to observe the Kelvin-Helmholtz instability [43,44], followed by much other work on that process. This included work by our collaborative team [ [45][46][47][48][49][50][51][52] and by a team from Los Alamos National Laboratory [53][54][55][56][57][58][59][60].…”