火箭弹尾流冲击效应研究  

Research on Rocket Wake Impact Effect

作　　者：曲普[1] 姜瑞洲 孙耀东[2] QU Pu;JIANG Ruizhou;SUN Yaodong(School of Mechanical and Electrical Engineering,North University of China,Taiyuan 030051,Shanxi,China;Northwest Institute of Mechanical&Electrical Engineering,Xianyang 712099,Shaanxi,China)

机构地区：[1]中北大学机电工程学院,山西太原030051 [2]西北机电工程研究所,陕西咸阳712099

出　　处：《火炮发射与控制学报》2024年第5期9-15,共7页Journal of Gun Launch & Control

基　　金：航空科学基金(2019290U0003)。

摘　　要：以火箭弹尾流场及发射平台为研究对象,基于计算流体动力学方法,采用有限体积法进行数值离散,建立火箭弹尾焰燃气流场数学物理模型进行计算。分析火箭弹尾焰射流与发射平台的相互作用,探究燃气流场速度、温度和压力等参数分布特性,并研究发射过程中尾焰燃气流对发射平台的冲击效应,得到发射平台关注区域表面压力、温度变化规律。之后对不同材料表面进行数值模拟及实验模拟对比,研究结果表明由钢材料替换铝材料后,钢材料表面温度低于熔点,可减小温度对平台的影响,为火箭弹发射平台防护及优化提供了理论依据。Taking the rocket wake field and launch platform as the research object,based on the computational fluid dynamics method,the finite volume method was used to carry out numerical discretization,and the mathematical physical model of the rocket wake gas flow field was established for calculation.The interaction between the rocket wake jet and the launch platform was analyzed,the distribution characteristics of parameters such as speed,temperature and pressure of the gas flow field were explored,and the impact effect of the wake gas flow on the launch platform during the launch process was studied,and the surface pressure and temperature variation law of the launch platform were obtained.Subsequently,numerical and experimental simulations were conducted on the surfaces of different materials for comparison.The results showed that after replacing aluminum material with steel material,the surface temperature of the steel was lower than the melting point,which could reduce the temperature influence on the platform.The result provides a theoretical basis for the protection and optimization of rocket launch platform.

关 键 词：火箭弹 尾流场 冲击效应 防护优化 数值模拟 

分 类 号：TJ393[兵器科学与技术—火炮、自动武器与弹药工程]