Spatial resolution correction for wall-bounded turbulence measurements

A. J. Smits, J. Monty, M. Hultmark, S. C.C. Bailey, N. Hutchins, I. Marusic

Research output: Contribution to journalArticle

77 Scopus citations

Abstract

A correction for streamwise Reynolds stress data acquired with insufficient spatial resolution is proposed for wall-bounded flows. The method is based on the attached eddy hypothesis to account for spatial filtering effects at all wall-normal positions. This analysis reveals that outside the near-wall region the spatial filtering effect scales inversely with the distance from the wall, in contrast to the commonly assumed scaling with the viscous length scale. The new formulation is shown to work very well for data taken over a wide range of Reynolds numbers and wire lengths.

Original languageEnglish (US)
Pages (from-to)41-53
Number of pages13
JournalJournal of Fluid Mechanics
Volume676
DOIs
StatePublished - Jun 10 2011

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Keywords

  • shear layer turbulence
  • turbulent boundary layers
  • turbulent flows

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