带有不同膛口装置的流场仿真分析  

Simulation Analysis of Flow Field with Different Muzzle Device

作　　者：王仲军 刘子龙 王茂森[1] 戴劲松[1] Wang Zhongjun;Liu Zilong;Wang Maosen;Dai Jinsong(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学机械工程学院,南京210094

出　　处：《兵工自动化》2023年第3期9-14,共6页Ordnance Industry Automation

摘　　要：针对火炮射击时炮口压力大而导致的振动问题,设计4种不同结构的膛口装置。通过将火药燃气引入装置内进行膨胀再排出的方式降低装置周围的压力,结合动网格技术对安装不同装置的膛口流场进行数值模拟,通过对比无装置时炮口周围压力的下降程度来判定各装置的效果,并根据数值仿真结果对不同装置的降压效果进行分析。计算结果表明:与无装置时相比,安装膛口装置后炮口周围压力明显降低,对该装置结构的进一步设计具有一定的参考价值。4 kinds of muzzle devices with different structures were designed to solve the problem of vibration caused by high muzzle pressure during gun firing.The pressure around the device was reduced by introd ucing the propellant gas into the device to expand and then exhaust,and the numerical simulation of the muzzle flow field with different devices was carried out by combining with the dynamic mesh technology,and the effect of each device was determined by comparing the pressure drop around the muzzle without the device,and the pressure reduction effect of different devices was analyzed according to the numerical simulation results.The calculation results show that the pressure around the muzzle decreases obviously after installing the muzzle device,which has certain reference value for the further design of the device structure.

关 键 词：膛口装置 流场仿真 动网格 

分 类 号：TJ303.2[兵器科学与技术—火炮、自动武器与弹药工程]