Experimental study on flow hysteresis effect on NACA0015 airfoil using DBD plasma actuator

► We investigate the influencing factors in plasma actuation flow hysteresis effect. ► Duration of flow hysteresis effect increases with increasing free-stream speed. ► Duration of flow hysteresis effect increases with increasing actuation duration. ► Duration of flow hysteresis effect decreases with increasing attack angle. ► The duration of flow hysteresis effect we got increases remarkably to 150 s.