Abstract
It was attempted to control of jet diffusion of round jet using centripetal type plasma actuator. It was visualized and analyzed by the PIV. It was obtained the following. By driving a steady plasma actuator, the induced flow convergence, has become a jet of volume flow rate Q = 15 〜 50L/min. Induced flow which caused by the ionized area are concentric, the flow velocity becomes faster and boundary layer thickness becomes thicker, as ionized area larger. When applied to a circular jet, the velocity of primary jet becomes faster by the effect of contraction and the momentum of the induced flow. When the ionized area becomes narrower, the effect of contraction by the induced flow is increased.
