| 层板发汗冷却推力室壁温的数值模拟 |
| |
| 引用本文： | 吴慧英,程惠尔,牛禄. 层板发汗冷却推力室壁温的数值模拟[J]. 工程热物理学报, 2001, 22(1): 104-106 |
| |
| 作者姓名： | 吴慧英 程惠尔 牛禄 |
| |
| 作者单位： | 上海交通大学工程热物理研究所, |
| |
| 基金项目： | 中国博士后科学基金资助项目，上海市科委自然科学基金资助项目 |
| |
| 摘 要： | 运用有限差分方法对一台设计工况下的层板发汗冷却推力室的壁温特性进行了数值模拟。计算结果表明：壁温相同情况下，发汗冷却推力室承受的燃气温度可比膜冷却方式提高约１０００℃；燃气温度相同时，发汗冷却推力室的壁温较非发汗冷却降低约５０％；层板室壁温度梯度集中在燃气侧；ｍ１／２越大，层板室壁内部换热效率越高，层板内壁温度越低，内、外壁温差越大。
|
| 关 键 词： | 层板推力室 发汗冷却 壁温 数值计算 |
| 文章编号： | 0253-231X(2001)01-0104-03 |
| 修稿时间： | 2000-04-04 |
NUMERICAL SIMULATION OF WALL TEMPERATURE FOR A TRANSPIRATION COOLEDTHRUST CHAMBER WITH PLATELET DESIGN |
| |
| WU Hui-ying,CHENG Hui-er,NIU Lu. NUMERICAL SIMULATION OF WALL TEMPERATURE FOR A TRANSPIRATION COOLEDTHRUST CHAMBER WITH PLATELET DESIGN[J]. Journal of Engineering Thermophysics, 2001, 22(1): 104-106 |
| |
| Authors: | WU Hui-ying CHENG Hui-er NIU Lu |
| |
| Abstract: | A numerical simulation using the finite difference method is performed on thewall temperature of the transpiration cooled thrust chamber with the plateletdesign. The numerical results show that: for the same wall temperature, the gastempeature that the transpiration cooling withstands can be raised by1000 compared to the film cooling; for the same gas temperature, thewall temperature of the transpiration cooling can be lowered by 50% comparedto the non-transpiration cooling; the platelet wall temperaure gradient on thegas side is very large; for a certain platelet wall, an increase ofm1/2 will results in a decrease of inner-wall temperature and an increaseof inner-to-outer temperature difference. |
| |
| Keywords: | platelet thrust chamber transpiration cooling wall temperature numerical simulation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
