An experimental study of active control of fully separated flow over a symmetrical circular-arc airfoil at high angles of attack was performed. The experiments were carried out in a low-speed, open-circuit wind tunnel with the airfoil at angles of attack from 10 to 40 deg. Low-power input, unsteady excitation was applied to the leading or trailing edge. The actuation was provided by the periodic oscillation of a 4% chord flap placed on the suction side of the airfoil and facing the sharp edge. Pressure measurements over the airfoil show that flow control increased the normal force coefficient by up to 70%. The application of flow control on sharp-edged aircraft wings could lead to improved maneuverability, innovative flight control, and weight reduction.


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    Titel :

    Flow control of a sharp-edged airfoil


    Weitere Titelangaben:

    Beeinflussung der abgelösten Strömung um ein scharfkantiges Kreisbogenprofil


    Beteiligte:

    Erschienen in:

    AIAA Journal ; 43 , 4 ; 716-726


    Erscheinungsdatum :

    2005


    Format / Umfang :

    11 Seiten, 21 Bilder, 1 Tabelle, 16 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Flow Control of a Sharp-Edged Airfoil

    Segio Miranda / Pavlos Vlachos / Demetri Telionis et al. | AIAA | 2005


    Flow control of a sharp-edged airfoil

    Miranda, Sergio / Telionis, Demetri / Zeiger, Matthew | AIAA | 2001


    AIAA 2001-0119 Flow Control of a Sharp-Edged Airfoil

    Miranda, S. / Telionis, D. / Zeiger, M. et al. | British Library Conference Proceedings | 2001



    Post-stall flow control of sharp edged-wings

    Vlachos, Pavlos / Schaeffler, Norman / Donnelly, Martin et al. | AIAA | 1999