Nonlinear mixing behavior of the three-dimensional Rayleigh-Taylor instability at a decelerating interface

R. P. Drake, D. R. Leibrandt, E. C. Harding, C. C. Kuranz, M. A. Blackburn, H. F. Robey, B. A. Remington, M. J. Edwards, A. R. Miles, T. S. Perry, R. J. Wallace, H. Louis, J. P. Knauer, D. Arnett

Research output: Contribution to journalArticle

34 Scopus citations

Abstract

The evolution of the Rayleigh-Taylor (RT) instability from intentionally three-dimensional (3D) initial conditions at an embedded, decelerating interface in a high-Reynolds number flow was discussed. The study was carried out by using ∼ 5 kJ of laser energy to produce a blast wave shocked and then decelerated the perturbed interface between the first material and lower-density C foam. It was found that the interface caused the formation of a decelerating interface with an Atwood number∼ 2/3, producing a long term positive growth rate for the RT instability. The results show that the RT spikes appear to overtake the shock waves, moving at large fraction of the predeceleration.

Original languageEnglish (US)
Pages (from-to)2829-2837
Number of pages9
JournalPhysics of Plasmas
Volume11
Issue number5 PART 2
DOIs
StatePublished - May 2004

ASJC Scopus subject areas

  • Condensed Matter Physics

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