波动变形对动态失速控制的数值研究  

Numerical study on dynamic stall control by undulatory deformation

作　　者：葛兰[1,2] 胡文蓉[1,2] 

机构地区：[1]上海交通大学工程力学系,上海200240 [2]上海交通大学与千叶大学国际合作研究中心,上海200240

出　　处：《水动力学研究与进展（A辑）》2014年第1期18-23,共6页Chinese Journal of Hydrodynamics

基　　金：国家自然科学基金项目(11072152)~~

摘　　要：该文提出了新型的利用波动变形实现动态失速控制的有效方式。利用SST湍流模型求解雷诺平均N-S方程,分析比较了波动变形翼与刚性俯仰翼的动态失速控制的动力学特性和流动特征,并探讨了不同波动形式、折合频率、传播方式和定点位置对动态失速控制的影响。结果表明:动态失速控制中,波动翼的性能明显优于刚性俯仰翼,尤其在极大攻角部分,波动翼仍能保持较高的升力;波动翼对动态失速的控制与波动形式、传播方式、折合频率和定点位置都密切相关。A new way of active dynamic stall control by undulatory deformation is proposed in this paper. The study is based on solving unsteady Reynolds-Average Navier-Stokes equations by SST turbulent model. Comparisons of the effectiveness of pitching wings and undulatory wings on dynamic stall control with different propagation approach, reduced frequencies and freezing point in deep stall are conducted. The results show that the performance of the undulatory wing is much better than that of the rigid pitching wing at high angles of attack. Furthermore, the undulatory wings with various controllable parameters are discussed in detail.

关 键 词：波动变形 动态失速 湍流模式 

分 类 号：O352[理学—流体力学]