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Small perturbation expansions in unsteady aerofoil theory

Published online by Cambridge University Press:  12 April 2006

J. M. R. Graham  and
I. Kullar
J. M. R. Graham
Affiliation:
Department of Aeronautics, Imperial College, London
I. Kullar
Affiliation:
Department of Aeronautics, Imperial College, London
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Abstract

Perturbation expansions are derived to second order in a wavenumber parameter for the unsteady lift induced on an aerofoil by disturbances convected past it at subsonic speeds. The results are used to discuss other approximate methods which have been used to predict the unsteady forces and noise generated by an aerofoil in turbulent flow.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 83 , Issue 2 , 22 November 1977 , pp. 209 - 224
Copyright
© 1977 Cambridge University Press

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