巡飞弹的翼型选择及气动特性分析

Airfoil Selection and Aerodynamic Characteristic Analysis of Loitering Munitions

弹翼为巡飞弹提供大部分升力,为了研究选择高升力、高升阻比翼型的方法。利用CAD技术建立了3类圆头尖尾翼型的二维模型,运用GAMBIT进行网格划分,利用FLUENT软件进行动力学仿真,采集空气动力学数据对阻力系数、升力系数和升阻比进行了比较,对曲线存在的特殊点着重分析。结果表明,在满足高升力、高升阻比和飞行稳定的基础上,选择翼型FX-63-137为巡飞弹的最佳翼型。

Loitering munitions with aerodynamic surfaces includes wings and rudders,the wings are the main components which provide lift force. In order to research airfoils which have high lift force and high lift-drag ratio,three different two-dimensional models which have circular head and pointed tail were established by using CAD Technology,the models were meshed by using GAMBIT software. Then,dynamics simulation was made by FLUENT software,comparison was made among drag coefficient,lift coefficient and lift-drag ratio,the special points of date were stressed. The result shows that the FX-63-137 airfoil is more favorable in high lift force,high lift-drag ratio and stable flight.