A low-speed wind-tunnel investigation was conducted to examine the effect of aspect ratio on ground effect. The characteristics of the wing and its section (a S8036 profile) were established at R e = 1.2 × 10 5 . The results indicate that ground effect is highly beneficial in augmenting lift, such that marked increases in the maximum lift-to-drag ratio may be realized. Finite wings in ground effect benefit from a reduction in vortex drag, as well as a lift increase, yielding greater gains in efficiency than achievable for an airfoil. The evaluation of analytic relations for estimation of the finite wing lift-curve slope and drag due to lift showed close accord with experiment.


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    Title :

    Experimental and Analytic Investigation of Ground Effect


    Contributors:

    Published in:

    Journal of Aircraft ; 52 , 1 ; 235-243


    Publication date :

    2014-06-05


    Size :

    9 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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