冲击反作用式炮口制退器数值模拟分析  

Numerical simulation analysis of impact reaction muzzle brake

作　　者：曲普[1] 刘宇豪 李强[1] QU Pu;LIU YUhao;LI Qiang(School of Mechanical and Electrical Engineering,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学机电工程学院,太原030051

出　　处：《兵器装备工程学报》2023年第10期224-229,共6页Journal of Ordnance Equipment Engineering

基　　金：航空科学基金项目(2019290U0003)。

摘　　要：针对冲击反作用式炮口制退器炮口流场建立数学物理模型,进行数值模拟仿真计算,采用多种控制方程及k-ε模型,并利用动网格技术,计算得到了炮口流场的结构和流动参数。通过单冲击式炮口制退器与冲击反作用式炮口制退器壁面合力,炮膛合力等对比,揭示了该型制退器炮口流场的发展规律,且展示了其相比于冲击式炮口制退器的优势。冲击反作用式炮口制退器在发射时后排边孔道出口截面压力明显高于前排的边孔道出口截面压力,与冲击式炮口制退器相比,炮膛合力不足其1/3,制退器壁面合力不足其1/4。数值模拟结果可为该型制退器结构设计与优化提供必要的参考。A mathematical and physical model of the muzzle flow field of the impact reaction muzzle brake is established,and the numerical simulation is carried out.The structure and flow parameters of the muzzle flow field are calculated by using a variety of governing equations and K-Epsilon model,and by using dynamic grid technology.The development law of the muzzle flow field of the single impact muzzle brake and the impact reaction muzzle brake is revealed by comparing the wall and bore forces of the single impact muzzle brake,and its advantages compared with the impact muzzle brake are shown.When the impact reaction muzzle brake is fired,the cross-section pressure of the back side channel outlet is obviously higher than that of the front side channel outlet.Compared with the impact muzzle brake,the resultant force of the gun bore is less than 1/3,and the resultant force of the wall is less than 1/4.The numerical simulation results can provide a necessary reference for the structural design and optimization of this type of brake.

关 键 词：冲击式 反作用 边孔道 制退效率 数值模拟 

分 类 号：TJ012.2[兵器科学与技术—兵器发射理论与技术]