Implementation of large scale PIV measurements for wall bounded turbulence at high Reynolds numbers

C. M. De Silva, K. A. Chauhan, C. H. Atkinson, N. A. Buchmann, Nicholas Hutchins, J. Soria, Ivan Marusic

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Here we describe the application of a multiple camera planar particle image velocimetry (PIV) measurement to achieve a large field of view (FOV) in a high Reynolds number turbulent boundary layer. Measurements are performed over a FOV of 0.8m × 0.5m (2.25δ × 1.4δ, where δ denotes the boundary layer thickness) in the streamwise and wall-normal directions respectively in a turbulent boundary layer. The use of a multicamera setup combined with a varying magnification enables a relatively high resolution across the large FOV, with the resolution particulary targeted in the near-wall region where it is most required. Results presented are from an image set of 1000 double-frames acquired at a Reynolds number of Reτ ≈ 8000. Flow statistics from the PIV are quantitatively compared with statistics from hot-wire anemometry at a nominally equivalent Reynolds number to assess the quality of the measurements.

Original languageEnglish
Title of host publicationProceedings of the 18th Australasian Fluid Mechanics Conference, AFMC 2012
Subtitle of host publicationLaunceston, Australia, 3-7 December, 2012
EditorsP.A. Brandner, B.W. Pearce
PublisherAustralasian Fluid Mechanics Society
Number of pages4
ISBN (Electronic)9780646583730
Publication statusPublished - 2012
EventAustralasian Fluid Mechanics Conference 2012 - University of Tasmania (Newnham Campus), Launceston, Australia
Duration: 3 Dec 20127 Dec 2012
Conference number: 18th


ConferenceAustralasian Fluid Mechanics Conference 2012
Abbreviated titleAFMC 2012
OtherThe 18th AFMC is to be the 1st of a series which will be held every 2 years by The Australasian Fluid Mechanics Society.
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