Experimental investigation of rotating film cooling performance in a low speed 1.5-stage turbine
文献类型：期刊论文
| 作者 | Li Guoqing1; Zhu Junqiang1; Deng Hongwu2; Tao Zhi2; Li Haiwang3 |
| 刊名 | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
 |
| 出版日期 | 2013-06-01 |
| 卷号 | 61页码:18-27 |
| 关键词 | Film cooling Density ratio Rotating Turbine Blowing ratio |
| 英文摘要 | Film cooling performance under rotating condition was investigated in rotor blade of a 1.5-stage turbine using Thermochromic Liquid Crystal (TLC) technique. The turbine is installed in the middle of the experimental apparatus which is a closed-loop, low-speed thermal wind tunnel. The rotor of the turbine includes 18 blades with chord of 124.3 mm and height of 99 mm. A film hole is set in the middle span of rotor blade surface with injection angle of 28 degrees on the pressure side and 36 on the suction side respectively. In the experiments, the Reynolds number based on the mainstream velocity of the turbine outlet and the chord length of the rotor blade is fixed at 1.89 x 10(5). Measurements are made at three different rotating speeds of 600 rpm, 667 rpm and 702 rpm with the blowing ratio varying from 0.3 to 3.0. CO2 and air act as coolant to obtain the density ratio of 1.57 and 1.03, respectively. The effects of blowing ratio, density ratio, rotating number and curved surfaces are analyzed according to the film performance. Comparing with the air injection, the CO2 injection with higher density ratio produces better film attachment. The film coverage and cooling effectiveness increases monotonously on the pressure side while the trend is parabola on the suction side as the blowing ratio rising. The film deflection is analyzed quantitatively. Higher rotating number and lower blowing ratio results in stronger film deflection. Besides, the different characteristics are indicated between the pressure side and the suction side. (C) 2013 Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Thermodynamics ; Engineering, Mechanical ; Mechanics |
| 研究领域[WOS] | Thermodynamics ; Engineering ; Mechanics |
| 关键词[WOS] | PRESSURE SIDE ; LEADING-EDGE ; BLADE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000318260200002 |
| 公开日期 | 2015-12-22 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/98874]  |
| 专题 | 工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI） |
| 作者单位 | 1.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China 2.Beijing Univ Aeronaut & Astronaut, Natl Key Lab Sci & Technol Aeroengines, Beijing 100191, Peoples R China 3.Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore 639798, Singapore |
| 推荐引用方式 GB/T 7714 | Li Guoqing,Zhu Junqiang,Deng Hongwu,et al. Experimental investigation of rotating film cooling performance in a low speed 1.5-stage turbine[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2013,61:18-27. |
| APA | Li Guoqing,Zhu Junqiang,Deng Hongwu,Tao Zhi,&Li Haiwang.(2013).Experimental investigation of rotating film cooling performance in a low speed 1.5-stage turbine.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,61,18-27. |
| MLA | Li Guoqing,et al."Experimental investigation of rotating film cooling performance in a low speed 1.5-stage turbine".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 61(2013):18-27. |
入库方式： OAI收割
来源：工程热物理研究所
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