The practical benefits and issues related to controlling unsteady loads in gusting flows with active flow control actuators are discussed. Recent methods used to model the response of flight and road vehicles to unsteady flow disturbances, as well as modeling approaches for the dynamic effects of active flow control, are presented in the framework of a feedforward/feedback control architecture. Limitations of the achievable control performance are discussed. For instance, the lift reversal and the delay time required for the lift increment to reach its maximum value are responsible for limiting the bandwidth that can be achieved with active flow control of separated flows. An estimate of the practical gust bandwidth that can be controlled with aircraft is made.


    Access

    Download


    Export, share and cite



    Title :

    Alleviating Unsteady Aerodynamic Loads with Closed-Loop Flow Control


    Contributors:

    Published in:

    AIAA Journal ; 56 , 6 ; 2194-2207


    Publication date :

    2018-06-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Modeling of Unsteady Aerodynamic Loads

    Da Ronch, Andrea / Badcock, Kenneth J. / Khrabrov, Alex et al. | AIAA | 2011


    Modeling of Unsteady Aerodynamic Loads

    Da Ronch, A. / McCracken, A. / Badcock, K. et al. | British Library Conference Proceedings | 2011


    Modeling of Unsteady Aerodynamic Loads

    Da Ronch, A. / McCracken, A. / Badcock, K. et al. | British Library Conference Proceedings | 2011


    Motion-Induced Unsteady Aerodynamic Loads with Development of Vortical Flow

    Wiggen, Stefan / Mai, Holger / Nuhn, Johannes et al. | AIAA | 2018


    Motion induced unsteady aerodynamic loads with development of vortical flow

    Wiggen, Stefan / Klein, Christian / Henne, Ulrich et al. | AIAA | 2017