爆炸与冲击2024，Vol.44Issue(12)：55-71,17.DOI:10.11883/bzycj-2024-0108
不同海拔高度炮口冲击波动态演化特性数值模拟研究
Numerical simulation study on the dynamic evolution characteristics of muzzle shock waves at different altitudes
康越 1马天 1王俊龙 2张逸之 3张文博 4韩笑 1栗志杰5
作者信息
- 1. 军事科学院系统工程研究院,北京 100010
- 2. 军事科学院系统工程研究院,北京 100010||湘潭大学物理与光电工程学院,湖南 湘潭 411105
- 3. 清华大学航天航空学院,北京 100084
- 4. 大连理工大学机械工程学院,辽宁 大连 116024
- 5. 清华大学核能与新能源技术研究院,北京 100084
- 折叠
摘要
Abstract
Based on the coupled Euler-Lagrangian(CEL)method,a fluid-solid coupling model of gunpowder gas-barrel/cannonball-air is established.Numerical simulations are carried out on the launching process of large-caliber artillery shells in low altitude(altitude 0 m),medium altitude(altitude 1000 m),sub-high altitude(altitude 3000 m)and high altitude(altitude 5000 m)environments,and the comparative studies are conducted on the influence mechanism of altitudes on the dynamic evolution characteristics of muzzle shock waves.The simulation results show that the dynamic evolution process of the muzzle shock wave has significant direction dependence.The peak pressure of the muzzle shock wave will decrease as the altitude increases(namely the ambient pressure decreases),and the decrease of peak pressure is approximately linear to the change of ambient pressure.Increasing altitude will reduce the pressure peak of the muzzle shock wave for the same position(same distance and direction).The lateral muzzle shock wave,formed at the muzzle brake,dominates the pressure peak in the typical operating zone of the artillery operators(3-5 m behind the muzzle).The pressure peak value and effective action time at different altitudes can cause damage to the hearing organs,and induce the threat to the non-hearing organs.Therefore,the protection capabilities of artillery operators'equipment is urgently needed to be improved,providing the effective protection for the important organs,such as ears,eyes,lungs and brains.关键词
炮口冲击波/流固耦合模型/海拔高度/人员防护Key words
muzzle shock wave/fluid-structure coupling model/altitude/personal protection分类
数理科学引用本文复制引用
康越,马天,王俊龙,张逸之,张文博,韩笑,栗志杰..不同海拔高度炮口冲击波动态演化特性数值模拟研究[J].爆炸与冲击,2024,44(12):55-71,17.
