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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
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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.

Information

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

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References

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