1197 on the Mechanism of Bluff Body Flow Control by Pulsed Plasma Actuator

Abstract

To clarify the flow mechanism of the separation control on circular cylinder when pulsed plasma actuator is applied, the characteristics of the induced jet from the pulsed plasma actuator was examined from the results of jet thrust measurement and high-speed schlieren flow visualization. The effect of the frequency of pulsed plasma actuator on the flow separation on a circular cylinder model is discussed in the viewpoint if aerodynamic force and the flow field measured with time-resolved PIV at the low speed wind tunnel test. As a result, pulse frequency dependency of the strength of the induced jet is clarified and their direct effect in the separation control performance is observed.