| 涡轮叶片前缘复合冷却实验 |
| |
| 引用本文： | 游良平,陶毓伽,蔡军,梁世强,淮秀兰,顾维藻.涡轮叶片前缘复合冷却实验[J].航空学报,2009,30(9):1618-1623. |
| |
| 作者姓名： | 游良平 陶毓伽 蔡军 梁世强 淮秀兰 顾维藻 |
| |
| 作者单位： | 中国科学院,工程热物理研究所,北京,100190 |
| |
| 基金项目： | 国家自然科学基金(50776087) |
| |
| 摘 要： | 为研究涡轮叶片复合冷却传热特性，建立了涡轮叶片复合冷却实验测试平台，对叶片前缘区域进行了射流冲击+气膜冷却实验测试，详细研究了冷气吹风比M、前缘位置、主流雷诺数Re以及温度比Tg/Tc对冷却效率的影响规律。实验结果表明，冷却效率随吹风比的增大而增大，随Tg/Tc的增大而减小。本文实验条件下, 最佳吹风比约为1.0；越靠近前缘驻点，冷却效率越大；主流雷诺数对冷却效率的影响不大，但总体上仍表现出雷诺数越大，冷却效率越高。
|
| 关 键 词： | 涡轮叶片 复合冷却 实验 冷却效率 吹风比 |
Experiment of Composite Cooling on Leading Edge of Turbine Blade |
| |
| You Liangping,Tao Yujia,Cai Jun,Liang Shiqiang,Huai Xiulan,Gu Weizao.Experiment of Composite Cooling on Leading Edge of Turbine Blade[J].Acta Aeronautica et Astronautica Sinica,2009,30(9):1618-1623. |
| |
| Authors: | You Liangping Tao Yujia Cai Jun Liang Shiqiang Huai Xiulan Gu Weizao |
| |
| Affiliation: | Institute of Engineering Thermophysics;Chinese Academy of Science;Beijing 100190;China |
| |
| Abstract: | In order to study the heat transfer characteristics of turbine blades,this article presents an experimental study of composite cooling of impingement and film on the leading edge of a turbine blade.The effect of factors on cooling effectiveness,such as blowing ratio,position of leading edge,main flow Reynolds number and comparison of temperature Tg/Tc,is investigated in detail.The experimental results show that cooling effectiveness improves with the increase of blowing ratio and deteriorates with the incre... |
| |
| Keywords: | turbine blade composite cooling experiment cooling effectiveness blowing ratio |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《航空学报》浏览原始摘要信息 |
|
点击此处可从《航空学报》下载全文 |
|
