Structure based statistical theory of intermittency

Eun Jin Kim, Johan Anderson

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

A general statistical theory of the intermittency in turbulence based on short-lived coherent structures (instantons) is presented. The probability density functions (PDFs) of the flux R are shown to have an exponential scaling P (R) exp (-c Rs) in the tails, with the exponent s= (n+1) m. Here, n and m are the order of the highest nonlinear interaction term and moments for which the PDFs are computed, respectively; c is constant depending on spatial profile of the coherent structure. The results can have important implications for understanding the universality often observed in simulations and experiments.

Original languageEnglish
Article number114506
JournalPhysics of Plasmas
Volume15
Issue number11
DOIs
Publication statusPublished - 25 Nov 2008
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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