采用非定常正弦振荡和准定常旋转坐标系两种数值模拟方法,对F12全机模型三个攻角进行动态特性数值模拟,得到飞行器的纵向组合动导数和阻尼动导数,计算结果与试验数据对比具有良好的一致性,同时用无粘和粘性两种计算方程进行准定常旋转坐标系模拟,计算结果一致,表明两种数值模拟方法准确性高,计算速度快,可为设计提供快速可信的数据支持。 Two kinds of numerical simulation methods of unsteady sinusoidal oscillation and quasi-stationary rotating coordinate system were used to simulate the dynamic characteristics of three angles of attack of the F12 full-machine model to obtain the longitudinal combined kinematic derivative and damping dynamic derivative of the aircraft. Comparing the calculated results with the experimental data The results show that the two numerical methods are of high accuracy and fast calculation speed and can provide fast and credible design for the design data support.