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Author Peyser, T. A. ♦ Miller, P. L. ♦ Stry, P. E. ♦ Budil, K. S. ♦ Burke, E. W. ♦ Wojtowicz, D. A. ♦ Griswold, D. L. ♦ Hammel, B. A. ♦ Phillion, D. W.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ PLASMA PHYSICS AND FUSION ♦ MIXING ♦ THERMAL RADIATION ♦ DENSITY ♦ GROWTH ♦ INSTABILITY ♦ INTERFACES ♦ LASERS ♦ NONLINEAR PROBLEMS ♦ PERTURBATION THEORY ♦ SHOCK TUBES
Abstract We present the first experimental measurement of the growth of a mixing region at a density interface from a high-amplitude, initially nonlinear perturbation. Thermal radiation from a gold {ital Hohlraum} irradiated by the Nova laser was used to drive a shock across a perturbed plastic-foam interface in a cylindrical shock tube attached to the {ital Hohlraum}. When the effects of target decompression are removed, the width of the mix region was found to grow logarithmically with time---in agreement with recent theories for the nonlinear phase of the Richtmyer-Meshkov instability.
ISSN 00319007
Educational Use Research
Learning Resource Type Article
Publisher Date 1995-09-18
Publisher Department Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publisher Place United States
Journal Physical Review Letters
Volume Number 75
Issue Number 12
Organization Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)


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