Experimental investigation of the near and far field structure of high Reynolds number turbulent boundary layers

Nicolas A. Buchmann, Callum Atkinson, Charitha M. de Silva, Nicholas Hutchins, I. Marusic, Julio Soria

Research output: Contribution to conferencePaper

Abstract

A multiple camera, multiple resolution PIV system is used to capture a large streamwise, wall-normal field of view (2δ × 1.5δ), while simultaneously resolving the near-wall flow down to a height of y+ ≈ 3 at Reynolds numbers of Reτ ≈ 8,000 to 20,000. The high spatial resolution in the near-wall vicinity is used to provide a direct estimate of the wall shear stress and subsequent analysis of both the small near-wall and larger outer flow structure conditional on the local friction velocity and conversely on larger scale fluctuations. Conditional two-point correlations, and conditional mean structures will be presented.

Original languageEnglish
Number of pages2
Publication statusPublished - 2013
EventEuropean Turbulence Conference 2013 - Lyon, France
Duration: 1 Sep 20134 Sep 2013
Conference number: 14th

Conference

ConferenceEuropean Turbulence Conference 2013
Abbreviated titleETC 2013
CountryFrance
CityLyon
Period1/09/134/09/13

Cite this