| 封闭式发射管内燃气流场数值模拟 |
| |
| 引用本文： | 徐强,李军,廖光煊. 封闭式发射管内燃气流场数值模拟[J]. 推进技术, 2002, 23(1): 45-48 |
| |
| 作者姓名： | 徐强 李军 廖光煊 |
| |
| 作者单位： | 1. 中国科技大学,火灾科学国家重点实验室,安徽,合肥,230026
2. 南京理工大学,机械学院,江苏,南京,210094 |
| |
| 摘 要： | 针对密封盖未及时开启造成发射装置损坏的问题进行了数值模拟，数值模拟采用多组分含有限速率非平衡化学反应流动模型，利用有限体积TVD数值格式求解方程组的对流项，对于化学反应造成的源项则采用四阶龙格库塔求解。研究表明密封疬不及时开启会在弹管间隙中形成破坏性的流动结构，在弹管间隙内存在着包含起始冲击波的激波振荡，这是导致发射装置损坏的重要因素。
|
| 关 键 词： | 导弹发射管 喷管气流场 数值仿真 激波振荡 封闭式发射管 |
| 文章编号： | 1001-4055(2002)01-0045-04 |
| 修稿时间： | 2001-02-02 |
Numerical simulation of exhausted flow field in closed launch tube |
| |
| XU Qiang,LI Jun and LIAO Guang xuan. Numerical simulation of exhausted flow field in closed launch tube[J]. Journal of Propulsion Technology, 2002, 23(1): 45-48 |
| |
| Authors: | XU Qiang LI Jun LIAO Guang xuan |
| |
| Affiliation: | XU Qiang 1,LI Jun 2,LIAO Guang xuan 1 |
| |
| Abstract: | Numerical simulation was conducted to study launching equipment damage caused by open delay of air proof cover. The flow model of multiple constituents finite rate unsteady state chemical reaction was used in numerical simulation, and finite volume TVD scheme used in solving convection term of the equation group. The source term generated by chemical reaction was solved by four order Runge Kutta algorithm. Study result shows shock oscillation with initial shock wave would be caused by open delay of the cover, and this harmful flow structure would lead to serious damage to launch equipment. |
| |
| Keywords: | Missile launch tube Nozzle flow Numerical simulation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《推进技术》浏览原始摘要信息 |
|
点击此处可从《推进技术》下载免费的PDF全文 |
