Vortex-merger statistical-mechanics model for the late time self-similar evolution of the Kelvin-Helmholtz instability

A. Rikanati, U. Alon, D. Shvarts

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

The nonlinear growth, of the multimode incompressible Kelvin-Helmholtz shear flow instability at all density ratios is treated by a large-scale statistical-mechanics eddy-pairing model that is based on the behavior of a single eddy and on the two eddy pairing process. From the model, a linear time growth of the mixing zone is obtained and the linear growth coefficient is derived for several density ratios. Furthermore, the asymptotic eddy size distribution and the average eddy life time probability are calculated. Very good agreement with experimental results and full numerical simulations is achieved.

Original languageEnglish
Pages (from-to)3776-3785
Number of pages10
JournalPhysics of Fluids
Volume15
Issue number12
DOIs
StatePublished - 1 Jan 2003

ASJC Scopus subject areas

  • Computational Mechanics
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

Fingerprint

Dive into the research topics of 'Vortex-merger statistical-mechanics model for the late time self-similar evolution of the Kelvin-Helmholtz instability'. Together they form a unique fingerprint.

Cite this