高速气流作用下两级飞行器动态分离过程研究

In order to study the influence of supersonic flow on the separation process of flyers, numerical simulation of the dynamic separation process of tandem flyers was carried out. The internal ballistic model with air resistance in high-speed airflow environment was established. The dynamic separation processes of the front flyer under different inflow velocities and attack angles were analyzed. The typical aerodynamic parameters, dynamic separation speed and difference between dynamic and static separation speed of the front flyer were obtained. The results show that, the difference between dynamic and static separation speeds varies significantly under different inflow speeds and attack angles. The drag and lift coefficient and dynamic separation speed decrease as inflow velocity increases. The speed difference factor increases as inflow velocity increases. The drag and lift coefficient and dynamic separation speed increase as the attack angle increases. The speed difference factor decreases as the attack angle increases.