| 涡轮叶片内冷却通道的流阻与换热研究 |
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| 引用本文： | 顾维藻,涂建平,刘文艳,王志峰,赵冬梅,盛荣昌,刘晓峰,凌劲如.涡轮叶片内冷却通道的流阻与换热研究[J].航空动力学报,1995,10(3):225-228,308. |
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| 作者姓名： | 顾维藻 涂建平 刘文艳 王志峰 赵冬梅 盛荣昌 刘晓峰 凌劲如 |
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| 作者单位： | 1.中国科学院工程热物理研究所 |
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| 摘 要： | 用实验方法研究了冷却气流在放大1倍模型涡轮叶片内通道的压力、冷热态流阻及局部换热系数分布。得出了相应的经验公式。冷却空气径向进入前缘冷却通道, 到顶端折而向下在两隔板间流动, 大部分空气经隔板5个穿孔弦向流入带三排扰流柱的收缩通道, 并弦向排出叶片尾部。
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| 关 键 词： | 叶片 流动阻力 换热系数 |
| 收稿时间： | 1994/10/1 0:00:00 |
| 修稿时间： | 2/1/1995 12:00:00 AM |
INVESTIGATION ON FLOW RESISTANCE AND HEAT TRANSFER IN COOLING PASSAGES OF GAS TURBINE BLADE |
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| Gu Weizao,Tu Jianping,Liu Wenyen,Wang Zhifang,Zhao Dongmei,Sheng Rongchang,Liu Xiaofeng and Ling Jinru.INVESTIGATION ON FLOW RESISTANCE AND HEAT TRANSFER IN COOLING PASSAGES OF GAS TURBINE BLADE[J].Journal of Aerospace Power,1995,10(3):225-228,308. |
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| Authors: | Gu Weizao Tu Jianping Liu Wenyen Wang Zhifang Zhao Dongmei Sheng Rongchang Liu Xiaofeng and Ling Jinru |
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| Institution: | 1.Institute of Engineering Thermophysics,Academia Sinica 1000802.Nanhua Powerplant Research Institute |
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| Abstract: | An enlarged test blade of gas turbine has been investigated experimentally for flow resistance and heat transfer in its cooling passages.Air entered the radial cooling channel inside the leading part of the blade and contrary flowed downward into the passage between two plates while the air flow reached to the top.The bulk of the air stream flowed through five holes on the plate into the chordwise wedged passage with three pin-fin rows and exhausted to the atmosphere.The experimental results of the pressure distribution,the flow resistance under heating and without heating,and the distribution of the local heat transfer coefficient in the cooling passages of a gas turbine blade are presented.Therefrom an emperic formula is obtained. |
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| Keywords: | Blades Cooling Flow resistance Thermal-convection coefficient |
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