弹道学报2017，Vol.29Issue(2)：47-53,7.
细长体射弹高速水平入水研究
Study on Horizontal Water-entry of Slender Projectile With High-speed
摘要
Abstract
To study the ballistic characteristics of the projectile in the water,the high-speed horizontal water-entry of slender projectile was experimented,which was automatically shot by using high-speed camera.The formation and development of the supercavitation were studied.The pressure variations of two points on the bottom of water tank were showed by pressure sensor.Based on the dynamic mesh method,the sailing process of the projectile was simulated,and the changes of the displacement,velocity,acceleration and the deflection angle of mass centre were obtained.The location of cavitation were obtained by analyzing the cavitation phenomenon.The results show that the water pressure around projectile sharply changes due to the effect of pressure wave.During the sailing process,the cavitation occurs at the shoulder of the projectile,and the tail of the projectile is displaced to ensure sailing stability in the cavity.关键词
细长体射弹/水下弹道/超空泡/实验研究Key words
slender projectile/underwater trajectory/supercavitation/experimental study分类
军事科技引用本文复制引用
王瑞琦,黄振贵,郭则庆,陈志华,刘如石..细长体射弹高速水平入水研究[J].弹道学报,2017,29(2):47-53,7.基金项目
国防预先研究基金项目(61426040303162604004) （61426040303162604004）
中央高校基本科研业务费专项资金(30917012101) （30917012101）
