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On nonlinear rayleigh-taylor instabilities

  • B. Desjardins*
  • , E. Grenier
  • *Corresponding author for this work
  • Commissariat à l’énergie atomique et aux énergies alternatives
  • Unité de Mathématiques Pures et Appliquées de l'ENS de Lyon

Research output: Contribution to journalArticlepeer-review

Abstract

Some of the mathematical properties of the interface between two incompressible inviscid and immiscible fluids with different densities under the influence of a constant gravity field g are investigated. The purpose of this paper is to prove that linearly unstable modes for Rayleigh-Taylor instabilities give birth to nonlinear instabilities for the full nonlinear system. The main ingredient is a general instability theorem in an analytic framework which enables us to go from linear to nonlinear instabilities.

Original languageEnglish
Pages (from-to)1007-1016
Number of pages10
JournalActa Mathematica Sinica, English Series
Volume22
Issue number4
DOIs
Publication statusPublished - Jul 2006
Externally publishedYes

Keywords

  • Analytic regularity
  • Fluid Mechanics
  • Instability
  • Nonlinear
  • Spectrum

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