In this paper, a morphing wing approach with a new methodology and its results for the high angles-of-attack optimization of the S4 unmanned aerial system airfoil are described. The boundary layer separation delay, coupled with an increase of the maximum lift coefficient, was achieved using an in-house optimization tool based on the artificial bee colony algorithm, coupled with the Broyden-Fletcher-Goldfarb-Shanno algorithm to provide a final refinement. The obtained results were validated with an advanced, multi-objective, commercially available optimizing tool. The aerodynamic calculations were performed using a two-dimensional linear panel method, coupled with an incompressible boundary layer model and a transition estimation criterion. For very small displacements of the airfoil surface, of less than 2.5 mm, lift coefficient increases of up to 18% together with relevant drag reductions have been achieved, successfully delaying separation for the high angles-of-attack range.


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    Titel :

    Improving the UAS-S4 Éhecal airfoil high angles-of-attack performance characteristics using a morphing wing approach




    Erscheinungsdatum :

    2016




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch



    Klassifikation :

    BKL:    55.50 Luftfahrzeugtechnik / 55.60 Raumfahrttechnik
    Lokalklassifikation TIB:    275/7040



    Improving the UAS-S4 Éhecal airfoil high angles-of-attack performance characteristics using a morphing wing approach

    Gabor, Oliviu Şugar / Simon, Antoine / Koreanschi, Andreea et al. | SAGE Publications | 2016


    Airfoil section characteristics at high angles of attack

    Loftin, Jr., L.K. | Engineering Index Backfile | 1954




    Morphing airfoil

    NEELY JARED / JOO JAMES / TOPP RUSSEL | Europäisches Patentamt | 2023

    Freier Zugriff