The Trailing Edge of a Pitching Airfoil at High Reduced Frequencies

[+] Author and Article Information
D. R. Poling, D. P. Telionis

Virginia Polytechnic Institute and State University, Dept. of Engineering Science and Mechanics, Blacksburg, Virginia 24061

J. Fluids Eng 109(4), 410-414 (Dec 01, 1987) (5 pages) doi:10.1115/1.3242681 History: Received August 05, 1986; Online October 26, 2009


Trailing edge flows are visualized for a pitching airfoil. The validity of the quasi-steady and an extension to an unsteady Kutta condition, namely the Giesing-Maskell condition are examined. A new dynamic similarity parameter is proposed. Earlier work and the present results are re-evaluated in terms of this parameter. A range is identified in which no Kutta-type condition may apply.

Copyright © 1987 by ASME
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