通过与试验结果的对比,验证了基于求解Euler方程的数值模拟方法在计算导弹气动特性中的有效性。在此基础上采用数值模拟方法研究加装弹身长边条对导弹大攻角气动特性的影响。与无边条外形相比,安装弹身长边条后,导弹在大攻角条件下的法向力和纵向压力中心变化不大,但非对称姿态下的偏航力矩和低超音速时的滚转力矩有明显减小,表明在弹身上加装长边条可有效改善导弹滚动通道的稳定性。

Numerical simulation method based on solving Euler equations was verified to be effective by agreement between computation and experimental measurement, and then this was used to investigate the effect of long strake on aerodynamic performances for missile at high angle of attack. The results show that strake affects normal force and longitudinal aerodynamic center of missile at high angle of attack slightly. Meanwhile, the yawning moment property and roll moment property are improved at low supersonic speed when missile is at asymmetric attitude. The application of strake can effectively enhance roll stability of missile at high angle of attack.