Abstract Details
Wall Shocks as Diagnostic Features of High-Energy-Density Experiments
Author: Forrest W. Doss
Requested Type: Oral Only
Submitted: 2009-04-20 01:02:03
Co-authors: R.P.Drake, H.F.Robey, C.C.Kuranz
Contact Info:
University of Michigan
2455 Hayward St., Space Resear
Ann Arbor, MI 49109
United States
Abstract Text:
Shock tube experiments in which intense heating ahead of the shock is present, by radiation transfer or other mechanisms, can exhibit heating and ablation of the tube material, driving an inwardly directed radial shock, which we call a wall shock. Both the wall shock and its interaction with the experiment's primary shock can be observed. From this interaction, various parameters related to shock speeds and temperatures may be inferred. Because wall shocks may also be driven by laser preheat, they appear not only in experiments containing strongly radiating shocks, but in other laser driven shock experiments. We present several examples of wall shocks obtained in multiple experimental settings and observed by x-ray radiography, computational support generated from the radiation hydrodynamics code HYDRA, and work detailing how shock parameters may be estimated from wall-shock observations.
Comments: