The manipulation of characteristic vortex-flow instabilities, which occur in the flow around delta wings, is of great interest for increasing the performance of such configurations. This work presents experimental results of vortex-flow manipulation on a generic delta-wing configuration using pulsed blowing slot actuators along the leading edge. The frequencies of the examined blowing cases are chosen on the basis of unsteady characteristics that occur in the shear-layer roll-up during vortex formation and vortex breakdown. The results of hot-wire measurements substantiate the receptivity of the shear layer for the pulsed excitation until into the vortex core. The flowfield response to this periodic forcing is shown by the displacement of the vortex bursting location in a chordwise direction, thus satisfying the aim of enhancing the aerodynamic performance.


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    Titel :

    Vortex-Flow Manipulation on a Generic Delta-Wing Configuration


    Beteiligte:
    Kölzsch, A. (Autor:in) / Breitsamter, C. (Autor:in)

    Erschienen in:

    Journal of Aircraft ; 51 , 5 ; 1380-1390


    Erscheinungsdatum :

    2014-04-08


    Format / Umfang :

    11 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    ICAS2016_0257: ACTIVE VORTEX FLOW CONTROL ON A GENERIC DELTA WING

    Buzica, A. / Bartasevicius, J. / Breitsamter, C. | British Library Conference Proceedings | 2016