含能材料2025，Vol.33Issue(10)：1176-1191,16.DOI:10.11943/CJEM2025092
圆柱壳体内部多点爆炸冲击波流场演化及压力分布特性
Key Influencing Factors of Multi-point Explosions Flow Field Characteristics inside Cylindrical Shells
摘要
Abstract
When multi-point explosions occur within a cylindrical shell containment,the generated multiple shock waves experi-ence superposition and coupling,interact with the vessel walls to produce reflected waves,and ultimately resulting in a highly complex internal flow field.To investigate the flow field characteristics and the key influencing factors for multi-point explosions within a cylindrical shell,a two-dimensional plane-strain ring model was employed and studied.The results demonstrate that the evolution of the flow field exhibits periodic behavior.Specifically,when there are 2 explosion points,the reflected wave pres-sure at the observation points near the inner wall of the circular ring is significantly increased compared with that of the central single-point explosion.Especially when the distance from the explosion points to the center of the ring is 0.6 times the radius of the circular ring,this pressure value can reach up to 4.58 times that of the central single-point explosion.Shock wave coupling in configurations with two or three explosion points enhances structural deformation of the circular shell.However,as the num-ber of explosion points increases further,the radial displacement of the shell gradually diminishes.Under conditions where the total explosive mass remains constant and the radial distance of the explosion points from the center is constrained between 0.2 and 0.8 times the shell radius,the two-point configuration induces the most significant structural deformation.关键词
多点爆炸/流场特性/冲击波系演化Key words
multi-point explosions/flow field characteristics/evolution of shock waves分类
武器工业引用本文复制引用
刘璐,徐昊,任逸飞,董奇..圆柱壳体内部多点爆炸冲击波流场演化及压力分布特性[J].含能材料,2025,33(10):1176-1191,16.基金项目
国家重点研发计划(2022YFC3320504) National Key Research and Development Program of China(No.2022YFC3320504) （2022YFC3320504）
