为了研究格栅翼的气动特性,采用数值模拟方法求解三维N-S方程组,对格栅翼和平面翼战术导弹大攻角流场进行了数值计算,并重点分析了几何特征尺寸对格栅翼气动特性的影响。结果表明:与平面翼相比格栅翼具有失速攻角大、铰链力矩小等优点;格栅翼的格数、格壁厚度、剖面前后缘楔角对翼面法向力影响较小,对轴向力影响很大。

The N-S equations were solved by numerical simulation to study the aerodynamic characteristics of grid wings. The flow field of tactical missiles with grid wings and planar wings at high angle of attack was calculated and main focus was performed on the influence of geometry characteristic size to aerodynamic characteristics of grid wings. The result indicates that grid wings have advantages of large stall angles and small hinge moment to planar wings. The axial force is significantly affected by grid numbers, web thickness and cross-section shapes, but the wing normal force is less affected.