基于非定常N-S方程,利用动网格方法和预处理方法对翼型在低速度下扑翼运动进行数值模拟。采用Jameson中心格式的有限体积法、双时间推进法求解非定常N-S方程;紊流模型采用基于SA紊流模型的DES模型。本文计算模拟翼型在低雷诺数下扑翼运动过程,计算所得推力系数结果与实验参考结果吻合较好,对扑翼飞行器设计有一定参考价值。 Based on the unsteady N-S equation, the flapping motion of the airfoil at low velocity is numerically simulated by the moving mesh method and the pretreatment method. The finite volume method of the Jameson center format and the two-time propulsion method are used to solve the unsteady N-S equation. The turbulence model uses the DES model based on the SA turbulence model. In this paper, the simulation of airfoil movement at low Reynolds number is calculated. The calculated thrust coefficient is in good agreement with the experimental data, which is of certain value to the design of flapping-wing aircraft.