抄録
Lift and drag characteristics of a symmetric airfoil with miniature electromagnetic actuators have been investigated when an angle of attack has been increased at a constant speed in a low Reynolds number range. It was revealed that the dynamic actuation of the miniature actuators was effective to delay a stall. A basic example of a feedback control in which the time-dependent lift force signal was used as an input signal to detect the stall and have a role to start the actuation of the miniature actuators was demonstrated and it can achieve the increase of the lift force and therefore delay the stall. Further example of a feedback control including the increase and decrease the angle of attack of the airfoil was found to be effective to maintain the high lift force after the actuation.
