无人机导弹发射过程中,导弹尾气流对无人机机翼产生一定的气动干扰,影响载机的安全飞行。本研究以Fluent软件中非结构动网格理论为基础,采用kw二阶湍流模型对不同挂载位置的导弹发射过程进行模拟,得出无人机导弹发射过程中,导弹尾气流使得机翼周围空气流场发生变化,飞机的气动性也随之发生改变,不同挂载位置下导弹的发射对机翼的气动性影响也有所区别。其研究结果为无人机机载导弹发射提供参考。

In the process of missile launching from UAV, the missile's exhaust jet has an impact on aerodynamics and safety of UAV. The study based on dynamic unstructured grids and turbulence model of k-omega two-equation model of Fluent analyzes that plume effect and different position of the missile have impact on airfoil aerodynamic interference, it is learned that in the process of missile launching, the exhaust jet stream changes flow field structure around airfoil, then affect aerodynamics of the airfoil with position change of the missile, and the influence of missile launching in different position on the airfoil varies a lot. The result also can provide some reference for missile launching from UAV.