无人飞行器外形布局设计及其气动特性计算分析

设计了一种新的无人飞行器气动外形布局，应用基于二次曲线的模线设计方法完成了飞行器气动外形建模，并对所建模型进行气动特性计算分析。将飞行器几何外形节点数据导入Gambit软件，生成气动特性计算所需的网格文件。应用Fluent软件，根据不同的飞行条件，选择合适的计算流体力学分析方法，对无人飞行器外形布局进行气动特性计算。主...

Configuration Design and Aerodynamic Performance Analysisof an Unmanned Aerial Vehicle

In this paper, a new configuration of an Unmanned Aerial Vehicle （UAV） was designed by conic lofting method and its aerodynamic performances were analyzed. The nodes of UAV geometry was generated and imported to Gambit software to build the grid file which was the foundation of aerodynamic computation. In terms of variant flight conditions, the suitable Computational Fluid Dynamics （CFD） methods were used to calculate the aerodynamic performances of UAV with Fluent software. The longitudinal aerodynamic performances of UAV with the speed of Mach 0.3, 0.6 and 1.3 were computed. The results including lift coefficient, drag coefficient and pitching moment coefficient at different heights were achieved. As a results were analyzed, the calculated data could show the high lift-to-drag ratio and longitudinal stability. In result, the configuration of UAV could satisfy the flying quality with favorable aerodynamic performances.