基于MEMS技术,研制了一种微气泡型致动器.对前缘布置有微致动器的三角翼进行了数值模拟和风洞实验,结果表明:微致动器可以改变三角翼前缘的旋涡流状态,扰动边界层,改变三角翼前缘分离涡位置,合理布置微致动器可以获得一定的滚转力矩,利用微致动器可以进行流动控制,进而改变飞行器的动力性能.
Based on the technology of micro-electro-mechanical systems (MEMS), a balloon actuator was developed. The micro actuators arrays were put on a delta wing. CFD (computational fluid dynamics) simulations and wind tunnel experiments carried out about micro balloon actuator's influence on boundary layer separation eddy. The actuators can change the leading-edge vortices. And consequently, micro actuators on the proper position can provide sufficient rolling moments for flow control and change the dynamics quality of aircraft.