Power laws and similarity of Rayleigh-Taylor and Richtmyer-Meshkov mixing fronts at all density ratios

U. Alon, J. Hecht, D. Ofer, D. Shvarts

Research output: Contribution to journalArticlepeer-review

308 Scopus citations

Abstract

The nonlinear evolution of large structure in Rayleigh-Taylor and Richtmyer-Meshkov bubble and spike fronts is studied numerically and explained theoretically on the basis of single-mode and two-bubble interaction physics at Atwood numbers (A). Multimode Rayleigh-Taylor bubble (spike) fronts are found as hB=BAgt2 [hs=s(A)gt2] with B=0.05, while Richtmyer-Meshkov bubble (spike) fronts are found as hB=aBtB (hs=asts(A)) with B=0.4 at all A's. The dependence of these scaling laws and parameters on A and on initial conditions is explained.

Original languageEnglish
Pages (from-to)534-537
Number of pages4
JournalPhysical Review Letters
Volume74
Issue number4
DOIs
StatePublished - 1 Jan 1995
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy

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