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| 弯曲段冲击扰流柱/逆向对流/气膜冷却效率的研究(1)——实验 | |
| 引用本文： | 石蕊,熊纯,曹俊,谢婕,杨卫华,宋双文.弯曲段冲击扰流柱/逆向对流/气膜冷却效率的研究(1)——实验[J].航空动力学报,2011,26(4):854-859. |
| 作者姓名： | 石蕊 熊纯 曹俊 谢婕 杨卫华 宋双文 |
| 作者单位： | 1. 南京航空航天大学能源与动力学院,南京,210016 2. 长沙航空职业技术学院航空装备维修工程系,长沙,410124; 3. 中国航空工业集团公司中国航空动力机械研究所,湖南,株洲,412002 |
| 摘 要： | 为了研究回流燃烧室弯曲段冲击扰流柱/逆向对流/气膜冷却结构形式对冷却效率的影响规律,设计了5种不同几何尺寸的实验件并进行了实验研究,研究结果表明:①扰流柱的存在使得弯曲段冲击扰流柱/逆向对流/气膜冷却效率得到了提高,特别是在小吹风比时更为突出;②吹风比对复合冷却效率有很大的影响,在相同冷却壁面处冷却效率随吹风比的增加而... |
| 关 键 词： | 回流燃烧室 弯曲段 扰流柱 复合冷却 冷却效率 |
| 收稿时间： | 2010/4/12 0:00:00 |
| 修稿时间： | 6/7/2010 12:00:00 AM |
Cooling efficiency study of impingement pin fin /reversed convection/ film cooling in curved section Part 1: experiments |
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| SHI Rui,XIONG Chun,CAO Jun,XIE Jie,YANG Wei-hua and SONG Shuang-wen.Cooling efficiency study of impingement pin fin /reversed convection/ film cooling in curved section Part 1: experiments[J].Journal of Aerospace Power,2011,26(4):854-859. | |
| Authors: | SHI Rui XIONG Chun CAO Jun XIE Jie YANG Wei-hua and SONG Shuang-wen |
| Institution: | College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;Aeronautical Equipment Repairing Engineering Deparment, Changsha Aeronautical Vocational and Technical College,Changsha 410124,China;China Aviation Powerplant Research Institute, Aviation Industry Corporation of China,Zhuzhou Hunan 412002,China;College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;China Aviation Powerplant Research Institute, Aviation Industry Corporation of China,Zhuzhou Hunan 412002,China |
| Abstract: | In order to study the influence of impingement pin fin/reversed convection/film cooling structure on cooling efficiency in curved section of combustion chamber,five different kinds of geometry dimension test pieces were designed and studied experimentally.The test results show that:(1) The efficiency of impingement pin fin/reversed convection/film cooling in curved section with pin fins is better than that without pin fins,especially when the blowing ratio is small.(2) The blowing ratio has great influence on the efficiency of compound cooling;the efficiency of compound cooling increases with the blowing ratio at the same wall position.When the blowing ratio exceeds 1.0,efficiency improvement for blowing ratio is not obvious.(3) The arrangement of pin fins has little effect on cooling efficiency. |
| Keywords: | reverse-flow combustion chamber curved section pin fin |
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