Measurements of turbulent flow in a channel at low Reynolds numbers

M. A. Niederschulte, R. J. Adrian, T. J. Hanratty

Research output: Contribution to journalArticle

89 Scopus citations

Abstract

Normal and streamwise components of the velocity fields of turbulent flow in a channel at low Reynolds numbers have been measured with laser-Doppler techniques. The experiments duplicate the conditions used in current direct numerical simulations of channel flow, and good, but not exact, agreement is found for single-point moments through fourth order. In order to eliminate LDV velocity bias and to measure velocity spectra, the mean time interval between LDV signals was adjusted to be much smaller than the smallest turbulence time scale. Spectra of the streamwise and normal components of velocity at locations spanning the channel are presented.

Original languageEnglish (US)
Pages (from-to)222-230
Number of pages9
JournalExperiments in Fluids
Volume9
Issue number4
DOIs
StatePublished - Jun 1990
Externally publishedYes

ASJC Scopus subject areas

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

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