On the logarithmic region in wall turbulence

Ivan Marusic, Jason P. Monty, Marcus Nils Hultmark, Alexander Smits

Research output: Contribution to journalArticle

309 Scopus citations

Abstract

Considerable discussion over the past few years has been devoted to the question of whether the logarithmic region in wall turbulence is indeed universal. Here, we analyse recent experimental data in the Reynolds number range of nominally 2 × 104 < Reτ < 6 × 105 for boundary layers, pipe flow and the atmospheric surface layer, and show that, within experimental uncertainty, the data support the existence of a universal logarithmic region. The results support the theory of Townsend (The Structure of Turbulent Shear Flow, Vol. 2, 1976) where, in the interior part of the inertial region, both the mean velocities and streamwise turbulence intensities follow logarithmic functions of distance from the wall.

Original languageEnglish (US)
Pages (from-to)R31-R311
JournalJournal of Fluid Mechanics
Volume716
DOIs
StatePublished - Feb 1 2013

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Keywords

  • pipe flow boundary layer
  • turbulent boundary layers
  • turbulent flows

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