Experimental assessment of safe and precise flight control algorithms for unmanned aerial vehicles under gusty wind conditions requires the capability to generate a large range of velocity profiles. In this study, we employ a small fan-array wind generator that can generate flows with large spatial and temporal variabilities. We perform a thorough aerodynamic characterization, operating the fans uniformly from low to maximum levels. Particle image velocimetry and hot-wire measurements indicate a jetlike flow with a nearly uniform core, which monotonously contracts in the streamwise direction and the surrounding, growing unsteady shear layers. These complex dynamics result in a limited region with a desired flow profile and turbulence level. The experimental results shed light on the flow generated by a full-scale fan-array wind generator, and they indicate the need for further improvements via properly designed add-ons and dedicated control algorithms.


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    Titel :

    Aerodynamic Characterization of a Fan-Array Wind Generator


    Beteiligte:
    Li, Songqi (Autor:in) / Liu, Yutong (Autor:in) / Jiang, Zhutao (Autor:in) / Hu, Gang (Autor:in) / Noack, Bernd R. (Autor:in) / Raps, Franz (Autor:in)

    Erschienen in:

    AIAA Journal ; 62 , 1 ; 291-301


    Erscheinungsdatum :

    2023-09-29


    Format / Umfang :

    11 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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