Computational Analysis of Heat Transfer Enhancement in Square Ducts With V-Shaped Ribs: Turbine Blade Cooling

[+] Author and Article Information
R. Jia, B. Sundén

Division of Heat Transfer, Lund Institute of Technology, P.O. Box 118, 221 00 Lund, Sweden  

M. Faghri

Mechanical Engineering & Applied Mechanics, University of Rhode Island, Kingston, Rhode Island 02881

J. Heat Transfer 127(4), 425-433 (Mar 30, 2005) (9 pages) doi:10.1115/1.1865220 History: Received February 27, 2004; Revised October 21, 2004; Online March 30, 2005
Copyright © 2005 by ASME
Your Session has timed out. Please sign back in to continue.



Grahic Jump Location
Geometry of a straight square duct (a) with one-sided transverse ribs, (b) grid for the inline V ribs, (c) with two-sided inline V ribs, and (d) with two-sided staggered V ribs
Grahic Jump Location
Grid independence test for LES of the 90° ribbed case
Grahic Jump Location
Normalized Nusselt number at the ribbed wall in comparison with the experiments of Rau et al.
Grahic Jump Location
Normalized Fanning friction factors, average Nusselt numbers of different rib configurations and Reynolds number at the ribbed and smooth side-walls: (a) The inline V ribs with e/Dh=0.0625, and the lines with open symbols are from the numerical solution, while the solid symbols are from the experimental data of Han et al. 2. (b) The staggered V-ribs with e/Dh=0.0625, and the experimental data are from Taslim et al. 5 for e/Dh=0.083.
Grahic Jump Location
The simulated fluid flow and heat transfer structure in ducts ribbed with inline V ribs at Re=15,000: (a) ≫ ribs and, (b) ≪ ribs
Grahic Jump Location
Normalized Fanning friction factors, average Nusselt numbers of different rib configurations, and Reynolds number at the ribbed and smooth side-walls of the staggered V ribs with e/Dh=0.125
Grahic Jump Location
Effect of SSW heating on the RSW Nu: (a) the comparison at the symmetry line, (b) no SSW heating, and (c) with SSW heating
Grahic Jump Location
Deviation (%) from the average Nu for (a) ≫ ribs and (b) ≪ ribs




Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In