基于N-S方程的十字翼大攻角导弹绕流数值模拟

Numerical Simulation of Cruciform Missile at High Angle of Attack Based on N-S Equation

基于雷诺应力模式的W&J CC EARSM+Hellstenk-ω湍流模型,采用N-S方程数值计算方法,模拟了十字翼导弹大攻角状态下绕流流场。通过计算结果和实验数据的比较,研究了在攻角40°以上时,弹翼和弹体之间的相互干扰,分析了不同攻角下弹体背风面分离涡的特点及背风涡对导弹气动力系数的影响。

This paper presents the flow field about wing-body and the detached-eddy on the leeward of cruciform missile at high angles of attack. W＆J EARSM ＋ Hellsten k-ω turbulence model is implemented in N-S flow solver. By comparing numerical results with experimental data, the interference of missile wing and body is investigated. The detachededdy characteristic and the effect to aerodynamic are analyzed on the leeward of the missile.