摘要
基于非结构重叠网格技术和全局亚迭方法,发展了一种气动、飞行和控制一体化耦合的非定常求解策略,用于飞行器闭环控制的数值虚拟飞行研究。高超声速飞行器按照设计控制律,采用升降舵偏转进行连续变攻角操纵和静不稳定布局稳定控制;数值虚拟飞行逼真显现了上述非定常流动、运动与控制的时序演化过程。数值虚拟飞行与基于气动数据库插值的飞行仿真比较,控制过程和反馈效果十分吻合。
A method based on unstructured overset grid and global sub-lteratton ts oevetopcu, which is used to investigate the virtual flight o[ a vehicle with closed-loop control by synchronous- ly simulating the coupled aerodynamics and flight dynamics. A static instable hypersonic configu- ration is pulled up with an increasing attack angle and then trimmed at a certain attack angle ac- cording to the designed control law, which is performed by the elevator deflection. The numerical virtual flight presents such integrative evolvement of unsteady flow, rigid body movement and aerodynamic control surfaces vividly. The numerical virtual flight agrees well with the traditional flight simulation based on aerodynamic database in terms of control effects, while there exits some difference during the whole process.
出处
《空气动力学学报》
CSCD
北大核心
2015年第2期156-161,共6页
Acta Aerodynamica Sinica
基金
国家自然科学基金(11372040
11472258)
