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Approximate Three-Dimensional Flow Theory for Axial Turbo-Machines

Published online by Cambridge University Press:  07 June 2016

W. T. Howell
W. T. Howell*
Affiliation:
Rolls-Royce Limited, Derby
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Summary

The subject of three-dimensional flow in axial compressors and turbomachines has been extensively studied since 1945. This paper gives a means of calculating the approximate three-dimensional flow in an axial compressor by giving expressions for the slope of the velocity profile as a function of the axial co-ordinate. These expressions bring out the rôle of the ratio of stage inlet annulus height to stage length in the three-dimensional flow in these machines. The effect of the three-dimensional flow on the stage temperature rise at mean radius is discussed by introducing a work done factor.

Type
Research Article
Information
Aeronautical Quarterly , Volume 14 , Issue 2 , May 1963 , pp. 125 - 142
Copyright
Copyright © Royal Aeronautical Society. 1963

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References

1. Whitehead, D. S. and Beavers, G. S. A Single Parameter Theory of Vortex Flow in Turbomachines. A.R.C. 23,209. (To be published in the R.& M. series).Google Scholar
2. Mellor, G. L. Reconsideration of the Annulus Flow Problem in Axial Turbomachinery. American Society of Mechanical Engineers, Preprint 61-WA-186, 1961. (The author is obliged to a referee for this reference).Google Scholar
3. Marble, F. E. The Flow of a Perfect Fluid through an Axial Turbomachine with Prescribed Blade Loading. Journal of the Aeronautical Sciences, Vol.5, August 1948.Google Scholar
4. Seippel, C. Three Dimensional Flow in Multi-Stage Turbines. Brown Boveri Review, Vol.45, No. 3, March 1958.Google Scholar