Hostname: page-component-7479d7b7d-jwnkl Total loading time: 0 Render date: 2024-07-12T01:20:06.146Z Has data issue: false hasContentIssue false
  • English
  • Français

The Ratio of the Wall Shear Stresses in Concentric Annuli

Published online by Cambridge University Press:  04 July 2016

Alan Quarmby
Alan Quarmby*
Affiliation:
University of Manchester, Institute of Science and Technology
Get access Rights & Permissions [Opens in a new window]

Summary

Experimental results are presented of the measurement of the ratio of the wall shear stresses at the inner and outer surfaces of concentric annuli. Five radius ratios were investigated with Reynolds numbers in the range 2000-89 000 with air. The Reynolds number is defined as where ū is the bulk velocity.

It is concluded that the ratio of the shear stresses is very different from the corresponding laminar flow value and is a function of both radius ratio and Reynolds number.

Type
Technical Notes
Information
The Aeronautical Journal , Volume 72 , Issue 688 , April 1968 , pp. 345 - 346
Copyright
Copyright © Royal Aeronautical Society 1968 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Rothfus, R. R., Monrad, C. C, Sikchi, K. G. and Heidiger, W. J. Isothermal Skin Friction in Flow Through Annular Sections. Ind Engg Chem, Vol 47, p 913, 1955.Google Scholar
2. White, V. K. and Franklin, R. E. Measurements of Skin Friction in an Annulus by the Floating Element Technique. ARC CP 814, 1965.Google Scholar
3. Quarmby, Alan. On the Use of the Preston Tube in Con centric Annuli. Journal of the Royal Aeronautical Society, Vol 71, p 47, 1967.Google Scholar
4. Quarmby, Alan. An Experimental Study of Turbulent Flow Through Concentric Annuli. Int J Mech Sci, Vol 9, p 205, 1967.Google Scholar
5. Leung, E. Y., Kays, W. M. and Reynolds, W. C. Heat Transfer with Turbulent Flow in Concentric and Eccentric Annuli with Constant and Variable heat Flux. Stanford Univ Engg Report AHT 4.Google Scholar
6. Lorenz, F. R. On Turbulent Flow Through Annular Passages. Comm Inst Fluid Mech, Karlsruhe, p 26, 1932.Google Scholar
7. Lee, Y. Private communication, 1965.Google Scholar