中文摘要：

为了研究采用主动后缘襟翼的智能旋翼在高速前飞状态下，耦合运动对襟翼-翼型的气动特性和动态失速特性的影响，通过数值求解Navier-Stokes方程来模拟作挥舞-变距耦合运动的襟翼-翼型的气动特性．湍流模型为雷诺平均的Spalart—Allmaras模型。结果显示，与单纯变距运动相比，当与变距运动同频、同相的挥舞运动耦合后，耦合运动会引起更大的气动系数超调和滞回环；耦合运动会增大黏性干扰区域尺度，使襟翼-翼型失速类型由动态轻失速变为动态深失速；耦合运动会增大力矩系数对流场变化的敏感度．

英文摘要：

Navier-Stokes equations were numerically solved with Reynolds averaged Spalart-Allmaras tur- bulence model in order to analyze the effects of coupled flapping-pitching oscillation on the unsteady aero- dynamics and dynamic stall characteristics of an airfoil with active trailing-edge flap （TEF） at high speed forward flight. Results show that compared to simple pitching airfoil with TEF, when flapping oscillating with same frequency and phase is added, higher overshoot of aerodynamic coefficients and larger hysteresis loops are observed. Coupled oscillation increases area of viscous interaction resulting in deep dynamic stall instead of light dynamic stall. Coupled oscillation increases the sensitivity of pitching moment coefficient on flow-field variation.