AbstractThis paper presents a review of theoretical and experimental results on stability and other unsteady properties of aircraft wakes. The basic mechanisms responsible for the propagation and the amplification of perturbation along vortices, namely the Kelvin waves and the cooperative instabilities, are first detailed. These two generic unsteady mechanisms are described by considering asymptotic linear stability analysis of model flows such as vortex filaments or Lamb–Oseen vortices. Extension of the linear analysis to more representative flows, using a biglobal stability approach, is also described. Experimental results obtained using LDV, hot wire and PIV in wind tunnels are presented and they are commented upon the light of theory.


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    Titel :

    Instability and unsteadiness of aircraft wake vortices


    Beteiligte:
    Jacquin, L. (Autor:in) / Fabre, D. (Autor:in) / Sipp, D. (Autor:in) / Theofilis, V. (Autor:in) / Vollmers, H. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2003-06-02


    Format / Umfang :

    17 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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