Experimental investigations have been carried out with the two-dimensional DLR-F15 high-lift wing-section model in the Cryogenic Wind-tunnel Cologne DNW-KKK to differentiate between the influence of Mach and Reynolds numbers on the stall behavior. Because of the cryogenic environment, Mach and Reynolds numbers have been varied independently between M = 0.1 0.25 and R e = 1.4 × 10 6 15.6 × 10 6 . The investigation covers two- and three-element configurations at various slat and flap settings and two different slat shapes. The focus of the investigation is to identify conditions of turbulent leading-edge stall, shock-related lift limitations, and flap separations and their influence on achievable maximum lift coefficient.


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    Title :

    Mach and Reynolds Number Dependencies of the Stall Behavior of High-Lift Wing-Sections


    Contributors:
    Wild, J. (author)

    Published in:

    Journal of Aircraft ; 50 , 4 ; 1202-1216


    Publication date :

    2013-07-01




    Type of media :

    Conference paper , Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English