摘要
对于不同结构形式的栅格翼,采用了分块结构网格生成策略,通过求解N-S方程对栅格翼子弹翼身组合体的亚声速和跨声速绕流流场进行了数值模拟,获得了栅格翼子弹翼身组合体在不同类型尾翼影响下的亚声速和跨声速气动特性,并与刀形翼子弹翼身组合体的气动特性进行了对比。计算结果表明:栅格翼子弹翼身组合体的飞行稳定性和法向力特性优于刀形翼子弹翼身组合体,其中斜置栅格翼模型的飞行稳定性和法向力特性均为最优;栅格翼子弹翼身组合体的轴向力系数大于刀形翼子弹翼身组合体,斜置栅格翼模型轴向力最大。
For different structure forms of grid fins, aerodynamic characteristics of submunition configurations with grid fins and body is simulated in subsonic and transonic flows, adopting the multi-block structure grid generation strategy and N-S equations using the finite volume method.The grid fins analyzed includes upright honeycomb configuration and skew honeycomb configuration with similiar grid densities.Aerodynamic characteristics of submunition configurations with different grid fins and submunition configurations with knife fins are compared, and aerodynamic characteristics is also investigated.The results show that the stability of flying and normal force characteristics of grid fins submunition configurations are better than those of the knife fins submunition configurations, in which the stability of flying and normal force characteristics of the skew honeycomb combination are the best.The axial force coefficient of grid fins submunition configurations are greater than that of knife fins submunition configurations, and the skew honeycomb combination has the largest axial force.
出处
《科技风》
2023年第8期158-162,共5页
关键词
子弹翼身组合体
栅格翼
多块结构网格
气动特性
数值模拟
submunition configurations with fins and body
grid fins
multi-block structure grid
aerodynamic characteristics
numerical simulation
