The Trailing Edge of a Pitching Airfoil at High Reduced Frequencies

D. R. Poling; D. P. Telionis

doi:10.1115/1.3242681

Journal of Fluids Engineering | Volume 109 | Issue 4 | Research Paper

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RESEARCH PAPERS

The Trailing Edge of a Pitching Airfoil at High Reduced Frequencies

D. R. Poling and D. P. Telionis

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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

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Abstract

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.

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Poling DR, Telionis DP. The Trailing Edge of a Pitching Airfoil at High Reduced Frequencies. ASME. J. Fluids Eng. 1987;109(4):410-414. doi:10.1115/1.3242681.

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The Trailing Edge of a Pitching Airfoil at High Reduced Frequencies

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