ABSTRACT

The topic of separation control has been widely investigated throughout the flow control community over the years, because it has provided one of the most clear and profound examples of where fluidic actuation can have a dramatic effect on altering the natural (i.e., unforced) aerodynamics of a flow field. This is in part due to the nature of separated flows, whose naturally occurring instabilitiesmake themvery receptive to small disturbances,and thus an ideal test bed for implementing fluidic control. In the last decade, several studies on synthetic jet applications have demonstrated that flow separation can be mitigated or even suppressed altogether (Amitay et al. 1999; Crook et al. 1999; He et al. 2001; Amitay and Glezer 2002b). Synthetic jets have also been used for separation control in inlet ducts (Amitay et al. 2002). It has also been demonstrated on unmanned aerial vehicle (UAV) (Amitay et al. 2003; Parekh et al. 2003), jet vectoring (Smith and Glezer 2002) as well as for flight control on scaled models (Ciuryla et al. 2007).More recently, it has been used for vibration suppression in wind turbines by Maldonado et al. (2009).