Tests have been made in the atmospheric wind tunnel of the National Advisory Committee for Aeronautics to determine the effects of pitching oscillations upon the lift of an airfoil. It has been found that the lift of an airfoil, while pitching, is usually less than that which would exist at the same angle of attack in the stationary condition, although exceptions may occur when the lift is small or if the angle of attack is being rapidly reduced. It is also shown that the behavior of a pitching airfoil may be qualitatively explained on the basis of accepted aerodynamic theory.


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    Title :

    Airfoil Lift with Changing Angle of Attack


    Contributors:

    Publication date :

    1927-09-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English



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