不同飞行速度机载导弹滑弹一体式发射数值模拟

Numerical Simulation of the Airborne Missile Launching by Railcatapult Integrated Launcher in Different Flight Speeds

无人机以0.8 Ma的速度飞行时,使用滑弹一体式发射装置发射导弹能够减小尾喷流对机翼的气动影响,考虑不同马赫数下飞行的无人机使用滑弹一体式发射导弹时对无人机的气动干扰。对于以不同速度飞行的无人机,其周围流场随着飞行速度的变化有所不同,当无人机发射导弹时,无人机与导弹相互之间的影响会使得其周围流场更加复杂。因此,本文结合非结构网格技术,使用CFD软件Fluent对无人机不同飞行速度下机载导弹滑弹一体式的发射过程进行数值模拟。通过对比实验结果,分析滑弹一体式发射装置在不同飞行速度下的是否适用。

Airborne missiles launching by rail,catapult integrated launcher will reduce the aerodynamic effect on the wing caused by the missile tail jet when the UAV flying at a speed of 0.8 Ma. The UAV using rail-catapult integrated missile launcher flying under the different Maber number is considered in this paper, the aerodynamic interference of UAV which caused by tail jet. For the UAV flight at different speeds, the flow field around the flight wilt change with it. When the drone fired missiles, UAV and missiles influence each other will make the flow field around its more complex. Therefore, this paper combined with unstructured grid technology, using CFD software Fluent to simulate the rail-catapuh integrated launching process of missiles when the UAV flying with different speeds. By comparing the experimental results, it is analyzed whether the rail-catapult missile launcher is suitable for different flight speeds.