涡轮叶片尾缘复合冷却通道换热的数值模拟

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

北京航空航天大学能源与动力工程学院, 北京 100083

详细信息

作者简介:
周建兴(1977-),男,甘肃榆中人,硕士生, zhou jianxing@hotmail.com.

中图分类号: V 2311
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- 被引次数: 0
出版历程
- 收稿日期: 2002-10-18
- 网络出版日期: 2004-02-29

Numerical analysis of heat transfer in typical turbine blade cooling configuration of ribbed passage and pin fin arrays

School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

摘要

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.
- 传热 /
- 肋 /
- 扰流柱 /
- 涡轮叶片 /
- 涡轮 /
- 涡轮喷气发动机
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.
- heat transfer /
- ribbed /
- pin fin arrays /
- turbine blade /
- turbine /
- turbojet engines

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参考文献(1)

[1] Metzger D E, Berry R A, Bronson J P. Developing heat transfer in rectangular ducts with staggered pin fins[J]. Trans ASME J Heat Transfer, 1982, 104:700~706 [2]Simoneau R J, Vanfossen G J. Effect of location in an array on heat transfer to short cylinder in crossflow[J]. Trans ASME J Heat Transfer, 1984, 106:42~48 [3] 苏红桢, 刘松龄, 陈辅群, 等. 扰流柱内部流场的实验研究[J]. 航空动力学报, 1997, 12(2):175~179 Su Hongzhen, Liu Songling, Chen Fuqun, et al. Experiment research on flow fields in the pin fins area[J]. Journal of Aerospace Power, 1997, 12(2):175~179(in Chinese) [4] 董素艳, 刘松龄, 苏红桢, 等. 扰流柱内换热的实验研究[J]. 航空动力学报, 1999, 14(1):95~99 Dong Suyan, Liu Songling, Su Hongzhen,et al. Experimental research on heat transfer in the pin fins area[J]. Journal of Aerospace Power, 1999, 14(1):95-99 (in Chinese) [5] Lau S C, Han J C, Batten T. Heat transfer, pressure drop, and mass flow rate in pin fin channels with long and short trailing edge ejection holes[J]. Trans ASME J Turbo, 1989,111:116~123 [6]Chyu M K, Hsing Y C, Natarajan V. Convective heat transfer of cubic fin arrays in a narrow channel[J]. Trans ASME J Turbo, 1998, 120:362~367 [7]Hwang J J, Lui C C. Detailed heat transfer characteristics in straight and 90-deg turned trapezoidal ducts with pin-fin arrays[J]. Int J of Heat and Mass Transfer, 1999, 42:4005~4016 [8]Hwang J J, Lui C C. Measurement of endwall heat transfer and pressure drop in a pin-fin wedge duct[J]. Int J of Heat and Mass Transfer, 2002, 45:877~889 [9] 顾维藻, 神家锐, 马重芳, 等. 强化换热[M]. 北京:科学出版社, 1990 Gu Weizao, Shen Jiarui, Ma Chongfang, et al. Heat transfer enhancement[M]. Beijing:Science Press, 1990 (in Chinese)

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