导流格栅对发射箱内冲击波强度影响仿真  

Simulation of Effect of Fluid Guiding Grid on ShockWave Intensity in Missile Launch Container

作　　者：徐大军[1] 朱云松 汤永康 宫晓睿 XU Dajun;ZHU Yunsong;TANG Yongkang;GONG Xiaorui(Beihang University,Beijing 102206)

机构地区：[1]北京航空航天大学,北京102206

出　　处：《海军航空大学学报》2023年第4期347-353,共7页Journal of Naval Aviation University

摘　　要：针对发射箱内添加导流格栅导致箱内冲击波强度变化的问题,构建了燃气流与后盖开启过程相互耦合的数值仿真模型,并基于动网格技术进行了仿真计算。研究结果表明:添加导流格栅后,箱内及前盖冲击波强度均有所增加,前盖压强峰值增加约5%,导流格栅安装位置越靠近发动机喷管,箱内冲击波强度增幅越大。研究结果可为发射箱内导流格栅设计提供理论参考。A numerical simulation model is built to study the effect of fluid guiding grid on the intensity of shock waves inside missile launch container,which is caused by the coupling between the gas flow and the opening process of the rear cover,and simulation calculations are conducted using dynamic mesh technology.The research result indicates that adding fluid guiding grid leads to an increase in the intensity of shock waves inside the missile launch container and on the front cover,the peak pressure on the front cover increased by approximately 5%,and the closer the installation position of fluid guiding grid to the engine nozzle,the greater the amplification of the shock wave intensity inside the missile launch container.The research result can provide theoretical reference for the design of the fluid guiding grid inside missile launch container.

关 键 词：导流格栅 冲击波 导弹发射箱 动网格 

分 类 号：TJ768.2[兵器科学与技术—武器系统与运用工程]