RESEARCH PAPERS: Papers From Symposium on Flow Effects on Structures

Effect of Wind-Tunnel Walls on the Flow Past Circular Cylinders and Cooling Tower Models

[+] Author and Article Information
César Farell, Saul Carrasquel, Oktay Güven, V. C. Patel

Division of Energy Engineering, and Iowa Institute of Hydraulic Research, The University of Iowa, Iowa City, Iowa

J. Fluids Eng 99(3), 470-479 (Sep 01, 1977) (10 pages) doi:10.1115/1.3448820 History: Received August 11, 1976; Online October 12, 2010


The effect of wind tunnel walls on the mean pressure distributions on rough-walled circular cylinders and on cooling tower models fitted with longitudinal ribs is studied experimentally in the range of Reynolds-number independence. For circular cylinders the results are compared with analytical corrections based on formulae of Allen and Vincenti, and of Maskell, which are found to be generally applicable in this Reynolds number range. For cooling towers, a correction procedure is proposed using the base pressure coefficient, Cpb , and the dimensionless pressure rise to separation, Cpb –Cpm , where Cpm is the minimum value of the pressure coefficient. The base pressure coefficient Cpb for cooling towers is (in the Reynolds-number-independent range) a function of the boundary geometry: model shape, tunnel type (open or closed jet) and blockage, and is independent of surface roughness. The difference Cpb –Cpm , on the other hand, is mainly a function of surface roughness for both cylinders and cooling towers and is very little, if at all, affected by tunnel blockage for blockages less than, say, 15 percent.

Copyright © 1977 by ASME
Your Session has timed out. Please sign back in to continue.





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