翼型动态失速影响因素及流动控制研究进展

深入认识翼型动态失速，结合有效流动控制手段，对解决直升机、风力机桨叶等动态失速引起的高阻力、大低头力矩等气动问题具有重要意义。本文首先介绍了翼型动态失速的流场特点和危害，进而分析了缩减频率、雷诺数、马赫数以及翼型型面等参数对动态失速的影响，并在此基础上总结了常见的动态失速流动控制方法及其研究进展。等离子体气动激励易于产生快速、可控的宽频带气动激励，在动态失速控制领域具有潜力，本文着重介绍了等离子体气动激励动态失速控制的概念和流动控制原理，总结了近来年等离子体激励在翼型动态失速控制上的进展。

Research progress on influence factors of airfoil dynamic stall and flow control

An in-depth understanding of airfoil dynamic stall, combined with effective flow control means, is of great significance for solving the aerodynamic problems such as high resistance and high bow torque caused by the dynamic stall of helicopter and wind turbine blades. In this paper, the characteristics and hazards of airfoil dynamic stall are firstly introduced, and then the effects of reduced frequency, Reynolds number, Mach number, and airfoil profile on dynamic stall are analyzed. On this basis, the common dynamic stall flow control methods and their research progress are summarized. The plasma aerodynamic actuation is easy to produce fast and controllable wide-band aerodynamic actuation, which has potential in the field of dynamic stall control. The concept of dynamic stall control with plasma aerodynamic actuation and the principle of flow control are introduced in detail, and the progress of plasma actuation in airfoil dynamic stall control in recent years is summarized.