潜射模拟弹弹射后效分析  

Analysis of ejection after-effect for underwaterlaunched emulating missile

作　　者：王汉平[1] 吴友生[1] 程栋 余文辉 

机构地区：[1]北京理工大学宇航科学技术学院,北京100081 [2]郑州机电工程研究所,郑州450052

出　　处：《船舶力学》2010年第10期1122-1128,共7页Journal of Ship Mechanics

摘　　要：基于Mixture多相流模型和动网格技术构建了二维轴对称弹射后效仿真模型,模型中可同时考虑空化和汽化效应;仿真获得了模拟弹弹射入水后的速度变化特性,同时还分离了均压气体和汽化作用等因素对弹射后效具体量值的影响。仿真结果表明,均压气体对弹射后效影响显著,而汽化作用影响较小。文中研究方法及其结论可为潜射导弹筒口压力场分析以及水弹道设计提供有益的指导。2D axi-symmetric simulation models for underwater-launched emulating missile ejection aftereffect were built up based on mixture multi-phase model and dynamic meshing technology,which took the cavitations and vaporization effect into consideration.Through simulation,time-variable velocity characteristics of underwater missile,effect of balance gas and vaporization on ejection after-effect were achieved.Simulation results showed that effect of balance gas on after-effect was remarkable,and that of vaporization was negligible.This research method and its conclusions are a good kind of reference to analysis of pressure field near canister outlet and design of the water ballistics of underwater-launched missile.

关 键 词：潜射导弹 潜载发射装置 多相流 弹射 后效 空化 汽化 

分 类 号：TJ768.2[兵器科学与技术—武器系统与运用工程] TJ836.2