摘要
随着飞机和发动机设计性能要求的不断提高,流体的主动控制变得越来越重要,并显出不可替代的作用。流体主动控制方式通过小尺度、局部的能量注入,特别是通过对临界点附近的控制来改变全场的流动结构,并且能够对复杂的动态系统进行精确的相位控制,所以在近年的流动控制领域变得非常活跃。本文对合成射流、等离子体、电磁体积力这些主动控制方法及其机制进行了详细的介绍,并得出结论:相对于被动控制方式,主动控制方式具有明显的优势。
With the advancement of aircraft and aeroengine performances,active controls in boundary layer separation play an important role and become irreplaceable.Through its small-scale and partial energy injection,especially control of near critical point,flow structures could be greatly manipulated.The accurately phase control in complex dynamic system has been received more and more research interests in recent years.Synthetic jet actuator,plasma technology and electromagnetic force are introduced in detail in this paper.It is concluded that active control methods has obvious advantage relative to passive control method.
出处
《航空工程进展》
2011年第2期151-156,共6页
Advances in Aeronautical Science and Engineering
关键词
流动控制
流动分离
合成射流
等离子体
电磁体积力
flow control
flow separation
synthetic jet actuator
plasma
electromagnetic force
