水下弹丸不同攻角流场特性研究  

Study on Flow Field Characteristics of Underwater Projectile at Different Angle of Attack

作　　者：李侃伟 韩晓明[1] 张浩 张超 翟明辉 Li Kanwei;Han Xiaoming;Zhang Hao;Zhang Chao;Zhai Minghui(College of Mechatronics Engineering,North University of China,Taiyuan 030051,China;Defense Equipment Research Institute,Jinxi Industries Group Co.,Ltd.,Taiyuan 030027,China;No.713 Institute of China Shipbuilding Heavy Industry Group,Zhengzhou 450045,China)

机构地区：[1]中北大学机电工程学院,太原030051 [2]晋西工业集团有限责任公司防务装备研究院,太原030027 [3]中国船舶重工集团公司第713研究所,郑州450045

出　　处：《兵工自动化》2022年第3期35-39,共5页Ordnance Industry Automation

基　　金：装备预研领域基金(6140240040106)。

摘　　要：针对水下弹丸在不同攻角下的流场特性,基于Rayleigh-Plesset方程、VOF多相流模型,建立一种弹丸水下运动过程的数值模拟方法。对比分析相同初速条件下,弹丸以不同攻角运动对运动过程中的空泡形态、流场演化及受力特性的影响。结果表明:攻角越大,弹丸的空化效果越差,在运动过程中受到的升力和阻力也会越大,将严重影响弹丸的水下弹道稳定性。Based on the Rayleigh-Plesset equation and the Vof multiphase flow model,a numerical simulation method of the underwater projectile motion process was established according to the flow field characteristics of the underwater projectile at different angles of attack.Under the same initial velocity,the effects of projectile motion at different angles of attack on the cavity shape,flow field evolution and force characteristics in the process of motion are compared and analyzed.The results show that the larger the angle of attack is,the worse the cavitation effect is,and the larger the lift and drag are,which will seriously affect the underwater trajectory stability of the projectile.

关 键 词：水下 攻角 数值模拟 空泡 弹道稳定性 

分 类 号：TJ012.3[兵器科学与技术—兵器发射理论与技术]