扑翼飞行的气动建模与仿真分析

用计算流体力学的数值仿真方法对微扑翼飞行的非定常空气动力学问题进行了建模与仿真研究。在对昆虫扑翼飞行运动的仿生模拟基础上，建立了简化的扑翼运动二维翼型的运动学与空气动力学模型。利用任意拉格朗日欧拉（ALE）有限元方法求解出N-S方程的数值解，将流场仿真结果与实验进行了对比，并分析了扑翼运动产生的前缘漩涡对升力的作用。文中的建模、分析方法和结论对微扑翼飞行器的分析设计和应用提供了一定的理论依据。

Aerodynamic Simulation and Analysis of Flapping-wing MAVs

The unsteady aerodynamics associated with flapping flight modes of flapping-wing Micro Air Vehicles (MAVs) was studied using the method of computational fluid dynamics. A two dimensional moving wing model was built for the flapping MAV, which mimicked biological locomotion, such as insect flight. The Arbitrary Lagrangian Eulerian (ALE) finite element method with ANSYS/CFD was used to solve the Navier-Stokes equations numerically. The solution showed that the leading-edge vortices could generate enough lift to support a typical flapping MAV. The modeling and analysis method, as well as the conclusions are suitable for design and analysis of flapping-wing MAVs.