尾翼直径对超空泡射弹小角度入水弹道特性影响研究  

Influence of tail diameter on ballistic characteristics of supercavitating projectiles entering water at small angles

作　　者：张云治 郭则庆[1] 孙帅 ZHANG Yunzhi;GUO Zeqing;SUN Shuai(National Key Laboratory of Transient Physics,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学瞬态物理国家重点实验室,南京210094

出　　处：《兵器装备工程学报》2022年第12期74-82,共9页Journal of Ordnance Equipment Engineering

摘　　要：为了研究尾翼式超空泡射弹在小角度入水时尾翼直径对弹道特性的影响,采用VOF多相流模型和重叠网格技术,对3种不同尾翼直径的超空泡射弹在10°~30°入水工况进行数值模拟。分析射弹在不同尾翼直径小角度入水情况下受到的空泡形态、弹道特性。结果表明,射弹尾翼直径越大,入水冲击越大;15 mm尾翼射弹入水1 ms时速度最快,且俯仰运动最为平稳。研究成果可为尾翼式超空泡射弹的弹形设计提供理论参考。In order to study the influence of the tail diameter on the ballistic characteristics of a tail supercavitating projectile when it enters water at a small angle, this paper uses the VOF multiphase flow model and the overlapping grid technology to numerically simulate the water entry conditions of three kinds of supercavitating projectiles with different tail diameters at an angle from 10° to 30°. The bubble shape and ballistic characteristics of projectiles which enter water at a small angle with different tail diameters are analyzed. The results show that the longer the tail diameter is, the greater the water entry impact creates;the 15 mm tail projectile has the highest velocity and the most stable pitching motion when it enters the water at 1 ms. The research results can provide a theoretical reference for the shape design of the tail supercavitating projectiles.

关 键 词：尾翼直径 超空泡射弹 小角度入水 弹道特性 

分 类 号：TJ67[兵器科学与技术—武器系统与运用工程]