Perturbation Evolution Started by Richtmyer-Meshkov Instability in Planar Laser Targets
Abstract
The first observations of the interaction of the Richtmyer-Meshkov (RM) instability with reflected shock and rarefaction waves in laser-driven targets are reported. The RM growth is started by a shock wave incident upon a rippled interface between low-density foam and solid plastic. Subsequent interaction of secondary rarefaction and/or shock waves arriving from the ablation front and the rear surface of the target with the RM-unstable interface stops the perturbation growth and reverses its direction. The ensuing exponential Rayleigh-Taylor growth thus can sometimes proceed with an inverted phase.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2006
- Accession Number
- ADA481244
Entities
People
- A. L. Velikovich
- A. N. Mostovych
- Andrew J. Schmitt
- John H. Gardner
- John R. Weaver
- M. Karasik
- N. Metzler
- Stephen P.P. Obenschain
- Tom Walsh
- V. Serlin
- Y. Aglitskiy
Organizations
- United States Naval Research Laboratory