小攻角下超高速射弹的空泡形态特性分析  

Characteristic Analysis on Cavity Form for a High Speed Projectile with Small Attack Angle

作　　者：周家胜[1] 易文俊[2] 王中原[2] 宋成俊[1] 

机构地区：[1]海军驻沈阳弹药专业军事代表室,沈阳110045 [2]南京理工大学弹道国防科技重点实验室,南京210094

出　　处：《弹箭与制导学报》2008年第2期165-167,共3页Journal of Projectiles,Rockets,Missiles and Guidance

基　　金：国防重点实验室基金资助

摘　　要：基于流体计算分析软件Fluent6.0,在零攻角下采用二维求解器对某口径超高速水下射弹空泡流进行数值模拟,并与该弹的水靶道试验结果进行了比较分析,符合较好,验证了计算模型与数值方法的正确性。在此基础上,采用三维求解器对非零攻角下射弹的空泡流动特性进行仿真研究,分析了小攻角对超高速射弹的空泡形态特性影响规律,为进一步研究水下超高速射弹的水动力特性和弹道特性等问题提供了理论基础。With the frame of flow simulation software Fluent 6.0, cavitating flow at zero angel of attack around underwater high speed projectile was investigated by numerical simulation based on 2D solver and numerical simulation results fit well with the results of the underwater range test. According to the model, simulation of the cavitating flow at non-zero angle of attack was investigated with a 3D solver. The effect on small angle of attack for cavity form around underwater high speed projectile was analyzed. This research offers theoretical reference for the study of hydrodynamics and ballistic performance of underwater projectile.

关 键 词：超高速射弹 超空泡 空泡形态 攻角 

分 类 号：O351.3[理学—流体力学]