爆炸与冲击2026，Vol.46Issue(1)：28-46,19.DOI:10.11883/bzycj-2024-0435
多航行体水下发射弹道干扰特性影响数值研究
Numerical study on the influence of trajectory interference characteristics of multiple projectiles underwater launch
李腾 1仇洋 2姚伟光 1桂毓林 1潘光 1郑晓波2
作者信息
- 1. 中国工程物理研究院流体物理研究所,四川 绵阳 621999
- 2. 西北工业大学航海学院,陕西 西安 710072
- 折叠
摘要
Abstract
During the underwater launch of multiple projectiles,each projectile operates within a highly complex and dynamic flow field,where its trajectory deflection is influenced by a combination of factors.These factors include initial conditions such as the projectile's velocity and the presence of crossflow,as well as the mutual interference effects among the projectiles.To gain a deeper understanding of the cavitation evolution and trajectory interference characteristics during the underwater launch of multiple projectiles,this study develops a comprehensive numerical simulation model.The model integrates the overlapping grid technique and the finite volume method and is coupled with a six-degree-of-freedom(6-DOF)motion model.Through this model,the influence mechanisms of spatial arrangement,launch velocity,and crossflow on trajectory deflection are systematically analyzed.The results of this study reveal several important findings.First,the spatial arrangement of the projectiles has a relatively minor impact on trajectory deflection.An equilateral triangular configuration is found to be an optimal choice for practical applications,as it maximizes the efficient utilization of the launch space.Second,as the launch velocity increases,the wake interference between projectiles becomes more pronounced.This intensified interference leads to significant disturbances in the flow field and stronger mutual trajectory interference among the projectiles.Third,higher crossflow velocities exacerbate the asymmetric development of cavitation near the projectile shoulders.When the crossflow velocity exceeds 0.75 m/s,it becomes the dominant factor influencing trajectory deflection.These research findings provide a robust theoretical foundation for trajectory prediction and layout optimization in the underwater launch of multiple projectiles.关键词
多航行体/弹道/出水/空化流场Key words
multiple projectiles/trajectory/water exit/cavitation flow field分类
数理科学引用本文复制引用
李腾,仇洋,姚伟光,桂毓林,潘光,郑晓波..多航行体水下发射弹道干扰特性影响数值研究[J].爆炸与冲击,2026,46(1):28-46,19.
