An investigation has been carried out to develop an engineering method for predicting the longitudinal aerodynamic characteristics of wing-flap configurations with upper surface blown (USB) high lift devices. Potential flow mode is of the lifting surfaces and the jet wakes are combined to calculate the induced interference of the engine wakes on the wing and flaps. The wing may have an arbitrary planform with camber and twist and multiple trailing edge flaps. The jet wake mode has a rectangular cross section over its entire length and it is positioned such that the wake is tangent to the upper surfaces of the wing and flaps. Comparison of measured and predicted pressure distributions, spanload distributions, and total lift and pitching-moment coefficients on swept and unswept USB configurations are presented for a wide range of thrust coefficients and flap deflection angles.


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    Title :

    Calculation of the longitudinal aerodynamic characteristics of upper-surface-blown wing-flap configurations


    Additional title:

    Kalkulation der Longitudinal-Charakteristik von Tragfluegeloberstroemung und der Strahlklappengeometrie


    Contributors:

    Published in:

    AIAA-Papers ; Jan ; 1-11


    Publication date :

    1979


    Size :

    11 Seiten, 16 Bilder, 15 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English