| 涡轮叶片尾缘复合冷却通道换热的数值模拟 |
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| 引用本文： | 周建兴,陶智,吴宏,丁水汀.涡轮叶片尾缘复合冷却通道换热的数值模拟[J].北京航空航天大学学报,2004,30(2):147-151. |
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| 作者姓名： | 周建兴 陶智 吴宏 丁水汀 |
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| 作者单位： | 北京航空航天大学 能源与动力工程学院, 北京 100083 |
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| 摘 要： | 用数值模拟的方法对一种典型的涡轮叶片尾缘冷却结构进行了数值计算,该冷却结构由横肋通道和交错扰流柱排构成.通过对不同进气雷诺数的计算结果分析可以看出:对所研究的冷却结构,扰流柱通道顶部及底部这两处冷气流速较高的区域的换热系数也比较高,温度较低;尾缘冷气出流孔处的换热系数也比较高;但扰流柱区的中部则由于冷气量明显不足导致明显的换热系数降低.
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| 关 键 词： | 传热 肋 扰流柱 涡轮叶片 涡轮 涡轮喷气发动机 |
| 文章编号： | 1001-5965(2004)02-0147-05 |
| 收稿时间： | 2002-10-18 |
| 修稿时间： | 2002年10月18日 |
Numerical analysis of heat transfer in typical turbine blade cooling configuration of ribbed passage and pin fin arrays |
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| Zhou Jianxing,Tao Zhi,Wu Hong,Ding Shuiting.Numerical analysis of heat transfer in typical turbine blade cooling configuration of ribbed passage and pin fin arrays[J].Journal of Beijing University of Aeronautics and Astronautics,2004,30(2):147-151. |
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| Authors: | Zhou Jianxing Tao Zhi Wu Hong Ding Shuiting |
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| Institution: | School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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| Abstract: | Numerical simulation was used to investigate the heat transfer of a typical turbine blade cooling configuration of ribbed passage and staggered pin fin arrays. Numerical results indicate that the distribution of heat transfer coefficient lacks of uniformity in the pin fin region. Calculation shows that blade top and root regions have much higher heat transfer coefficient and so is the area near ejection holes, whereas much lower heat transfer coefficient is observed for the central region of the blade. |
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| Keywords: | heat transfer ribbed pin fin arrays turbine blade turbine turbojet engines |
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