Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-27T14:24:33.057Z Has data issue: false hasContentIssue false
  • English
  • Français

The Interaction of the Wake from an Oscillating Blade with a Fixed Cascade

Published online by Cambridge University Press:  07 June 2016

D. S. Whitehead  and
V. G. Nabar
D. S. Whitehead
Affiliation:
Cambridge University, Engineering Laboratory
V. G. Nabar
Affiliation:
Cambridge University, Engineering Laboratory
Get access

Summary

The paper presents a theoretical investigation of the flow when the wake from a single vibrating aerofoil interacts with a fixed downstream cascade set normal to the mean flow direction. It is concluded that the effects of the cascade extend upstream by a distance of about one quarter of the wavelength of the fluctuations in the wake. It is also found that the wake passes through the cascade unchanged in strength, but that the cascade sheds vorticity of equal and opposite magnitude, so that, if an average is taken in the direction parallel to the cascade, the wake is annulled.

Type
Research Article
Information
Aeronautical Quarterly , Volume 22 , Issue 1 , February 1971 , pp. 42 - 52
Copyright
Copyright © Royal Aeronautical Society. 1971

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. Nabar, V. G. Blade row interference effects on torsional flutter of unstalled cascade blades at zero deflection. Unpublished.Google Scholar
2. Nabar, V. G. Row interference effects in blade flutter. Cambridge University PhD Dissertation, 1968.Google Scholar
3. Tanida, Y. Effects of blade row interference on cascade flutter. Transactions, Japan Society for Aeronautical and Space Sciences, Vol. 9, p. 100, 1966.Google Scholar
4. Skolem, S. En del besternte integraler av formen Norsk matematisk tiddskrift. Vol. 27-28, pp. 65-75, 1945-46.Google Scholar
5. Hamming, R. W. Numerical methods for scientists and engineers (Chapter 4). International series in pure and applied mathematics, McGraw-Hill, 1962.Google Scholar
6. Staff of the National Physical Laboratory. Modern computing methods. NPL Notes on Applied Science, Vol. 16, 1961.Google Scholar