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The Effect of Chordwise Flexibility on the Lift of a Rapidly Accelerated Airfoil

Published online by Cambridge University Press:  07 June 2016

J. Katz  and
D. Weihs
J. Katz
Affiliation:
Department of Aeronautical Engineering Technion - Israel Institute of Technology, Haifa
D. Weihs
Affiliation:
Department of Aeronautical Engineering Technion - Israel Institute of Technology, Haifa
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Summary

The effects of finite chordwise flexibility on the development of lift on a rapidly started airfoil are studied. This is a generalization of the so-called Wagner problem of unsteady aerodynamics. It is found that the lift varies with time in a non-monotonous fashion, including more than one extremum. The lift at large times is found to be lower, the more flexible the foil. Changes in the wake vortex sheet are also discussed.

Type
Research Article
Information
Aeronautical Quarterly , Volume 30 , Issue 1 , February 1979 , pp. 360 - 370
Copyright
Copyright © Royal Aeronautical Society. 1979

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References

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