Lift and Moment Prediction For an Oscillating Airfoil With a Moving Separation Point

[+] Author and Article Information
P. V. K. Perumal, F. Sisto

Department of Mechanical Engineering, Stevens Institute of Technology, Hoboken, N. J.

J. Eng. Power 96(4), 372-378 (Oct 01, 1974) (7 pages) doi:10.1115/1.3445860 History: Received November 27, 1973; Online July 14, 2010


An analytical method for predicting the perturbed aerodynamic reactions of a harmonically oscillating flat plate airfoil with time dependent point of separation is presented. It is shown that this method in conjunction with an empirical knowledge of the time history of the separation point can predict stall-flutter. Numerical results are presented and compared with existing theoretical and experimental results with special emphasis on torsional mode of oscillation.

Copyright © 1974 by ASME
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