Control of vortex motions in a jet flow with a microactuator of a wing section

Abstract

The development of an airfoil microactuator system for closed-loop control of vortex motions in a jet flow is presented in this paper. The oscillatory with a section of NACA0020 can manipulate a large-scale vortex ring at various frequencies lower/higher than the vortex ring generation. The microactuator performance is tested by means of flow visualization and measuring of velocity fluctuations. It is concluded that the actuator system indicates a valid procedure for jet flow control with the manipulation of vortex ring.