Two New Flow Control Technologies Based on Vibration

Abstract

This paper aims at study the technology of flow active control to increase the wing lift and weaken the wing drag by using the method of fluid mechanics. There are two new active control methods proposed in this paper. In this article, the computational method is expanded to a three-dimensional wing model to verify the validity of the new active control technology. Research shows that the partial active deformation can improve the aerodynamic characteristics of airfoil by appropriate parameters optimize, moreover the effect of rotation was better. In the condition of low Mach number and rotational control, the lift coefficient can be increased 11%, the drag coefficient can be decreased 40%. The shock wave will move backward by control in the condition of high Mach number. The control effect of 3D model is not as good as 2D model.