某型反坦克导弹系列化设计气动性能的研究

Aerodynamic Performance Study of Serial Design of a Certain Type of Anti-Tank Missile

应用FLUENT商业软件,对某型反坦克导弹在不同攻角和马赫数下的气动参数进行了计算,得出了导弹的升力系数、阻力系数、压心系数以及滚转力矩系数,将气动参数计算结果和风洞试验数据进行了对比。并根据该型导弹系列化应用场景,从翼片位置、弹头形状、弹长变化以及前置小翼4个方面对导弹气动参数进行了计算,分析了不同改型设计下导弹气动参数变化规律。结果表明,气动参数结果准确,能够为该型号导弹系列化气动外形设计提供参考。

We used fluent software to calculate the aerodynamic parameters of a certain anti-tank missile under different angles of attack and mach number,obtained the lift coefficient,drag coefficient centroid coefficient and rolling moment coefficient of the missile.The results of aerodynamic parameters calculation were compared with wind tunnel test data.According to the serialized application scenarios of this type of missile,we calculated the aerodynamic parameters of the missile form four aspects:the position of the wings,the shape of the warhead,the change of missile length and the front of winglet,and the variation law of aerodynamic parameters of missile with different modifications was analyzed.The results show that the calculation of aerodynamic parameters was accurate and it can provide a reference for the aerodynamic shape design of the missile series.