二维码（扫一下试试看！） | | 适配器与收缩段对同心筒发射流场的影响 | | The Influence of Adapter and Contraction Section on the Flow of Concentric Canister Launcher | | 投稿时间：2017-04-26 | | DOI：10.15918/j.tbit1001-0645.2018.06.002 | | 中文关键词:同心筒热环境适配器收缩段数值仿真试验验证 | | English Keywords:concentric canisterthermal environmentadaptercontraction sectionnumerical simulationtest verification | | 基金项目:国家部委预研项目（403050102） | | | 摘要点击次数:868 | | 全文下载次数:428 | | 中文摘要: | | 针对引射式同心筒自力发射系统（CCL）发射过程热力学环境评估，基于3维雷诺平均守恒Navier-Stokes方程、组分运输模型及域动分层动网格技术，建立同心筒自力发射数值模型.通过1：1模拟样机发射试验验证数值仿真模型的有效性.对不同结构同心筒开展3维非定常燃气流场数值仿真计算，分析适配器（侧向减震支撑系统）与内筒尾部收缩段对流场热环境特性的影响.数值结果及试验结果揭示了燃气流对导流锥、内外筒以及导弹等结构的热力冲击效应和变化规律，表明适配器和内筒收缩段对发射流场环境有较大的影响. | | English Summary: | | This paper aims at evaluating the thermodynamic environment of concentric canister launcher system. Based on the 3D Reynolds average conservation Navier-Stokes equations, component transport model and dynamic mesh update method, numerical calculation model of concentric canister launcher system was established. The validity of the numerical simulation model was verified by launching tests with 1:1 prototype launcher. The influence of adapter (also called lateral damping support system) and contraction section on the thermal environment of gas flow field was analyzed by simulating the 3D unsteady flow field of concentric canister launcher of different structures. The numerical results and experimental results showed the thermal shock effect and variation law of gas flow on guiding cone, launching barrel, missile, etc. The results indicate that the adapter and the contraction section have a great influence on the thermodynamic environment of missile launching. The research results provide a reliable theoretical basis for further study of thermodynamic environmental influence on dynamic response with concentric canister launchers. | | 查看全文查看/发表评论下载PDF阅读器 | |
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