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Semi-Empirical Prediction of Airfoil Hysteresis

Department of Aerospace and Mechanical Engineering, Embry Riddle Aeronautical University, Prescott, AZ 86301, USA
Academic Editor: Konstantinos Kontis
Aerospace 2016, 3(2), 9;
Received: 25 February 2016 / Revised: 17 March 2016 / Accepted: 18 March 2016 / Published: 24 March 2016
(This article belongs to the Collection Feature Papers in Aerospace)
PDF [721 KB, uploaded 24 March 2016]


A semi-empirical method is presented to estimate the angular excursion and the lift loss associated with static hysteresis on an airfoil. Wind tunnel data of various airfoils is used to define and validate the methodology. The resulting equation provides a relationship between the size of the hysteresis loop and characteristics of the airfoil. Comparisons of the equation with experiment show encouraging agreement both in terms of the magnitude of the lift loss and the extent of the loop. View Full-Text
Keywords: airfoil hysteresis; low Reynolds number airfoil; airfoil hysteresis prediction airfoil hysteresis; low Reynolds number airfoil; airfoil hysteresis prediction

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Traub, L.W. Semi-Empirical Prediction of Airfoil Hysteresis. Aerospace 2016, 3, 9.

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