有侧滑角椭圆弹身大攻角状态绕流的数值模拟  

The Numerical Simulation of Flow Around an ElliPtical Body at Roll Angle and High Incidence

作　　者：李锋[1] 王强[1] 周伟江[1] 

机构地区：[1]北京空气动力研究所

出　　处：《空气动力学学报》1996年第3期340-343,共4页Acta Aerodynamica Sinica

摘　　要：用数值模拟方法研究了椭圆细长体在大侧滑角、大攻角状态下的流动特性。数值模拟的出发方程为三维可压缩流的全Ｎ－Ｓ方程，数值格式为ＴＶＤ格式。通过数值模拟，研究了椭圆截面细长体在Ｍ∞＝２．５、侧滑角β＝４５°状态下，攻角从１０°～３５°范围内流场中的分离特征。The characteristics of flow over an elliptical body at 45°roll angle and high incidence are investigated by numerical method. The governing equations are the three dimensional compressible Navier-Stokes equations,the numerical scheme is implicit TVD algorithm. Through the numerical simulation, solutions are presented for the elliptical body with roll angle of 45° and different angles of attack, the emphasis is focused upon the leeside vortical flow.

关 键 词：侧滑角 分离 数值模拟 导弹空气动力学 

分 类 号：TJ760.11[兵器科学与技术—武器系统与运用工程]