On an alternative explanation of anomalous scaling and how inertial is the inertial range

M. Kholmyansky, A. Tsinober*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

There are a variety of models of higher statistics that have meager or nonexistent deductive support from the Navier-Stokes equations but can be made to give good fits to experimental measurements [1]. These include ‘explanations’ of what is called anomalous scaling, observed experimentally for higher-order structure functions of velocity and temperature increments, such that their scaling exponents, are nonlinear concave functions of the order p. Starting with refined similarity hypotheses by Kolmogorov and Oboukhov, numerous phenomenological models have been proposed to describe these deviations. The dominant of these models has been the multifractal formalism, others claimed the Reynolds number dependence as responsible. The common in all these approaches is the basic, widely accepted premise that in the inertial range, the viscosity plays in principle no role [2] so that nonlinear dependence of the algebraic scaling exponents on the moment order p is a manifestation of the inertial-range intermittency [3] with the inertial range defined as (with being the Kolmogorov and L - some integral scale). Thus the issue is directly related to what is called inertial (sub)range and how inertial it is.

Original languageEnglish
Title of host publicationAdvances in Turbulence XII - Proceedings of the 12th EUROMECH European Turbulence Conference, 2009
EditorsBruno Eckhardt
PublisherSpringer Science and Business Media Deutschland GmbH
Pages715-718
Number of pages4
ISBN (Print)9783642030840
DOIs
StatePublished - 2009
Event12th EUROMECH European Turbulence Conference, ETC12 2009 - Marburg, Germany
Duration: 7 Sep 200910 Sep 2009

Publication series

NameSpringer Proceedings in Physics
Volume132
ISSN (Print)0930-8989
ISSN (Electronic)1867-4941

Conference

Conference12th EUROMECH European Turbulence Conference, ETC12 2009
Country/TerritoryGermany
CityMarburg
Period7/09/0910/09/09

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