Direct Observation of Feedout-Related Mass Oscillations in Plastic Targets
Abstract
Feedout means the transfer of mass perturbations from the rear to the front surface of a driven target. When a planar shock wave breaks out at a rippled rear surface of the target, a lateral pressure gradient drives sonic waves in a rippled rarefaction wave propagating back to the front surface. This process redistributes mass in the volume of the target, forming the feedout-generated seed for ablative Rayleigh-Taylor (RT) instability. We report the first direct experimental observation of areal mass oscillation associated with feedout, followed by the onset of exponential RT growth.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 2001
- Accession Number
- ADA483123
Entities
People
- A. J. Schmitt
- A. L. Velikovich
- A. N. Mostovych
- C. J. Pawley
- J. H. Gardner
- M. Karasik
- N. Metzler
- S. P. Obenschain
- V. Serlin
- Y. Aglitskiy
Organizations
- Leidos