Measurement of Local Dissipation Scales in Turbulent Pipe Flow

S. C.C. Bailey, M. Hultmark, J. Schumacher, V. Yakhot, A. J. Smits

Research output: Contribution to journalArticle

29 Scopus citations

Abstract

Local dissipation scales are a manifestation of the intermittent small-scale nature of turbulence. We report the first experimental evaluation of the distribution of local dissipation scales in turbulent pipe flows for a range of Reynolds numbers: 2.4×104≤ReD≤7.0×104. Our measurements at the nearly isotropic pipe center line and within the anisotropic logarithmic layer show excellent agreement with distributions that were previously calculated from numerical simulations of homogeneous isotropic box turbulence and with those predicted by theory. The reported results suggest a universality of the smallest-scale fluctuations around the classical Kolmogorov dissipation length.

Original languageEnglish (US)
Article number014502
JournalPhysical review letters
Volume103
Issue number1
DOIs
StatePublished - Jun 29 2009

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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