Control of Cross-Flow in a Three-Dimensional Boundary Layer Using a Multidischarge Actuator System

Abstract

Abstract— Wind tunnel experiments on the control of flow in a three-dimensional boundary layer are performed using a multidischarge actuator system. The boundary layer was produced on a swept plate with an induced streamwise negative pressure gradient. The actuator system used a near-surface barrier discharge for producing a unidirectional three-dimensional force action over a lengthy region of the plate surface. The possibility of considerably reducing the cross-flow velocity and mitigating the intensity of stationary vortices that produce the cross-flow instability by means of the action of an actuator system is confirmed.