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The Impact of a Vortex Induced by a Baffle on the Turbulent Structure

[+] Author Affiliations
Shivani T. Gajusingh, Nasiruddin Shaikh, Kamran Siddiqui

Concordia University, Montreal, QC, Canada

Paper No. FEDSM2008-55096, pp. 323-331; 9 pages
doi:10.1115/FEDSM2008-55096
From:
  • ASME 2008 Fluids Engineering Division Summer Meeting collocated with the Heat Transfer, Energy Sustainability, and 3rd Energy Nanotechnology Conferences
  • Volume 1: Symposia, Parts A and B
  • Jacksonville, Florida, USA, August 10–14, 2008
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-4840-1 | eISBN: 0-7918-3832-3
  • Copyright © 2008 by ASME

abstract

An experimental study was conducted to investigate the impact of a rectangular baffle inside a square channel. PIV was used to measure the two-dimensional velocity fields. The measurements were conducted for two Reynolds numbers (Reτ ) equal to 134 and 152 in the turbulent regime. Results show that the turbulent intensities and the Reynolds Stress are enhanced by more than an order of magnitude in the presence of a baffle. Significant enhancement was observed in a region up to two times the baffle height.

Copyright © 2008 by ASME
Topics: Turbulence , Vortices

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