Abstract
Dielectric barrier discharge(DBD) plasma actuators were applied to the horizontal axis wind turbine to improve the aerodynamic performance. The axis torque and pressure distributions on the wing of the wind turbine were measuremed to evaluate the effect of flow control by plasma actuators. The difference of the flowfields between plasma on and off was also visualized by the tuft and pressure-sensitive paint. These results indicated that plasma actuators could improve the performance of the wind turbine.