Numerical simulation of high-speed projectile water entry

摘要：

　　In order to study the process of water entry of high speed projectile and the law of development of vacuoles, a new type of projectile was designed.And the vertical water entry of the projectile with nine different nose sizes are numerically simulated using AUTODYN.Then the study of different head size high speed water into the process of cavitation law, speed attenuation, deceleration changes and head shape drag coefficient changes over time.The research shows that the design of head stepped cavitation can significantly reduce the water entry resistance.

关键词： New projectile Water entry Hydro-ballistic stability Velocity attenuation

作者: Yu-xi XIE Jiang-tuo FENG Tian-xiong LI Yu-xin SUN

作者单位: National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu, China

会议类型: 国际会议

会议名称: 2018 International Conference on Defence Technology (2018国际防务技术会议)

会议地点: 北京

会议语种:英文

页码: 629-633

在线出版日期: 2018-10-21（万方平台首次上网日期，不代表论文的发表时间）