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6 - Dynamics of Wall-Bounded Turbulence

Published online by Cambridge University Press:  05 February 2013

By
J. Jiménez  and
G. Kawahara
Edited by
Peter A. Davidson ,
Yukio Kaneda  and
Katepalli R. Sreenivasan
J. Jiménez
Affiliation:
Stanford University
G. Kawahara
Affiliation:
Osaka University
Peter A. Davidson
Affiliation:
University of Cambridge
Yukio Kaneda
Affiliation:
Aichi Institute of Technology, Japan
Katepalli R. Sreenivasan
Affiliation:
New York University
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Summary

Introduction

This chapter deals with the dynamics of wall-bounded turbulent flows, with a decided emphasis on the results of numerical simulations. As we will see, part of the reason for that emphasis is that much of the recent work on dynamics has been computational, but also that the companion chapter by Marusic and Adrian (2012) in this volume reviews the results of experiments over the same period.

The first direct numerical simulations (DNS) of wall-bounded turbulence (Kim et al., 1987) began to appear soon after computers became powerful enough to allow the simulation of turbulence in general (Siggia, 1981; Rogallo, 1981). Large-eddy simulations (LES) of wall-bounded flows had been published before (Deardorff, 1970; Moin and Kim, 1982) but, after DNS became current, they were de-emphasized as means of clarifying the flow physics, in part because doubts emerged about the effect of the poorly resolved near-wall region on the rest of the flow. Some of the work summarized below has eased those misgivings, and there are probably few reasons to distrust the information provided by LES on the largest flow structures, but any review of the physical results of numerics in the recent past necessarily has to deal mostly with DNS. Only atmospheric scientists, for whom the prospect of direct simulation remains remote, have continued to use LES to study the mechanics of the atmospheric surface layer (see, for example, Deardorff, 1973; Siebesma et al., 2003). A summary of the early years of numerical turbulence research can be found in Rogallo and Moin (1984) and Moin and Mahesh (1998).

Type
Chapter
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Ten Chapters in Turbulence , pp. 221 - 268
Publisher: Cambridge University Press
Print publication year: 2012

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