Experimental evidence supporting Kolmogorov's refined similarity hypothesis

S. T. Thoroddsen*, C. W. Van Atta

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

50 Scopus citations

Abstract

In a recent Letter, Hosokawa and Yamamoto [Phys. Fluids A 3, 457 (1992)] have provided evidence against Kolmogorov's refined similarity hypothesis based on the results of direct numerical simulations of isotropic turbulence [J. Phys. Soc. Jpn. 60, 1852 (1991)] with Reλ close to 100. Here experimental results are presented from a wind-tunnel study of a cylinder wake, at Reλ of 550, which in spirit confirm the hypothesis, especially for the smaller scales in the inertial range. The present experimental velocity spectra contain one and one-half decades of inertial range. The apparent basic disagreement between the numerical simulations and the experiments may be due to the difference in Reλ, or may be symptomatic of a more subtle problem.

Original languageEnglish (US)
Pages (from-to)2592-2594
Number of pages3
JournalPhysics of Fluids A
Volume4
Issue number12
StatePublished - 1992
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Mechanics of Materials
  • Computational Mechanics
  • Fluid Flow and Transfer Processes

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