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.
Alleviating Unsteady Aerodynamic Loads with Closed-Loop Flow Control
AIAA Journal ; 56 , 6 ; 2194-2207
2018-03-05
14 pages
Article (Journal)
Electronic Resource
English
Modeling of Unsteady Aerodynamic Loads
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