Measurement of aerodynamic forces on an oscillating airfoil /
by Richard I. Windsor.

Description

Main Author

Windsor, Richard I.

Related Names

U.S. Army Aviation Materiel Laboratories
University of Maryland at College Park

Language(s)

English

Published

[Washington, D.C.] distributed by the Clearinghouse for Federal Scientific and Technical Information, Deparment of Commerce.
Fort Eustis, Virginia : U.S. Army Aviation Materiel Laboratories, 1970.

Subjects

Oscillating wings (Aerodynamics)
Oscillations.
Aerofoils.

Summary

A literature survey was conducted to determine the state of the art of measuring and predicting aerodynamic characteristics of oscillating air-foils. Aerodynamic forces on a two-dimensional NACA 0012 airfoil oscillating sinusoidally in pitch were measured by two techniques. The forces were obtained from pressure measurements and by means of strain gage balances. Pressure measurements were made on the airfoil oscillating in pitch about the quarter-chord point at various mean angles of attack. Strain gage balance readings were obtained for models with pitch axis located at 25, 37, and 50 percent chord points oscillating about various mean angles. Direct force measurements were employed in an effort to obtain drag data. Instantaneous pressure distributions are presneted for representative oscillating conditions. (Author).

Note

"March 1970."

Physical Description

223 pages : illustrations ; 28 cm.

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