扰流柱肋对透平叶片尾缘劈缝通道气热特性的影响

杨克峰; 高尚鸿; 汪翔宇; 刘钊; 丰镇平

doi:10.19805/j.cnki.jcspe.2025.240538

欢迎来到能源电力期刊网！

English Version 读者登录期刊登录

您当前的位置：

首页 >

文章列表页 >

扰流柱肋对透平叶片尾缘劈缝通道气热特性的影响

动力设备与系统 | 更新时间：2025-12-10

- 扰流柱肋对透平叶片尾缘劈缝通道气热特性的影响
- Effect of Pin Fins and Ribs on the Aerothermal Characteristics for the Trailing Edge Cutback Channel of the Turbine Blade
- 动力工程学报 2025年45卷第11期页码：1803-1814
- 作者机构：
  
  西安交通大学能源与动力工程学院叶轮机械研究所,陕西,西安,710049
- 作者简介：
- 基金信息：
  
  国家两机专项资助项目(J2017-III-0009-0035)
- DOI：10.19805/j.cnki.jcspe.2025.240538
  中图分类号：
- 网络出版：2025-11-17，
  
  纸质出版：2025-11-17
- 稿件说明：
移动端阅览
杨克峰,高尚鸿,汪翔宇,刘钊,丰镇平. 扰流柱肋对透平叶片尾缘劈缝通道气热特性的影响动力工程学报, 2025, 45(11): 1803-1814 https://doi.

org/10.19805/j.cnki.jcspe.2025.240538
杨克峰,高尚鸿,汪翔宇,刘钊,丰镇平. 扰流柱肋对透平叶片尾缘劈缝通道气热特性的影响动力工程学报, 2025, 45(11): 1803-1814 https://doi. DOI： 10.19805/j.cnki.jcspe.2025.240538.

org/10.19805/j.cnki.jcspe.2025.240538 DOI：

摘要

为了研究透平叶片尾缘冷却结构的气热特性

建立了带有劈缝结构的叶片L形收缩通道模型。通过数值分析比较了扰流柱、扰流肋以及其布置方式对流动与换热特性的影响

提出了同时采用热均匀性指数和热性能指数来评价通道的换热效率。结果表明:光滑通道中存在2个分离涡

且扰流柱和扰流肋对这2个分离涡有明显的抑制作用

并能显著增强通道换热能力;以热性能指数比较不同通道的换热特性时

带柱通道具有最佳的换热效率

但是考虑到换热分布均匀性时

柱肋通道有着最佳的换热效率;2种扰流结构的布置方式对热性能指数影响有限

但对努塞尔数分布均匀性影响明显;扰流肋和扰流柱叉排时的综合系数高

其比顺排时分别高5.23%和2.71%;建议在透平叶片尾缘劈缝的冷却设计时使用叉排布置的扰流柱肋结构。

Abstract

In order to study the aerothermal characteristics of trailing edge cooling structure of the turbine blade

a L-shaped wedge channel model with trailing edge cutback of the blade was established. The effects of the pin fins

ribs and their arrangement on the flow and heat transfer characteristics were numerically analyzed and compared

and it was proposed to use both the thermal uniformity index and the thermal performance index to evaluate the heat transfer efficiency of the channel. Results show that there are two separated vortices in the smooth channel. The pin fins and ribs have a significant restraining effect on these two vortices

which can significantly improve the heat transfer performance of the channel. When comparing the heat transfer characteristics of different channels using the thermal performance index

the channel with pin fins has the best heat transfer efficiency. However

when the uniformity of heat transfer distribution is considered

the channel with both ribs and pin fins has the best heat transfer efficiency. The arrangement of two types of turbulator structures has a limited effect on the thermal performance index

but has a significant effect on the uniformity of Nusselt number distribution. The comprehensive coefficients of the ribs and pin fins are higher in the staggered arrangement

which are 5.23% and 2.71% higher than that in the inline arrangement

respectively. Thus

it is recommended to use the staggered arrangement of the ribs and pin fins in the cooling design of the trailing edge cutback of the turbine blade.

关键词

Keywords

references

HWANG J J, LUI C C. Detailed heat transfer characteristic comparison in straight and 90-deg turned trapezoidal ducts with pin-fin arrays[J]. International Journal of Heat and Mass Transfer, 1999, 42(21): 4005-4016.

HWANG J J, LUI C C. Measurement of endwall heat transfer and pressure drop in a pin-fin wedge duct[J]. International Journal of Heat and Mass Transfer, 2002, 45(4): 877-889.

LIANG Ce, RAO Yu, LUO Jiahao, et al. Experimental and numerical study of turbulent flow and heat transfer in a wedge-shaped channel with guiding pin fins for turbine blade trailing edge cooling[J]. International Journal of Heat and Mass Transfer, 2021, 178: 121590.

PARDESHI I, SHIH T I P, BRYDEN K M, et al. Flow and heat transfer in a rotating and non-rotating wedge-shaped cooling passage with ribs and pin fins[C]//53rd AIAA Aerospace Sciences Meeting. Kissimmee, USA: AIAA, 2015.

PARDESHI I A. Flow and heat transfer in an L-shaped cooling passage with ribs and pin fins for the trailing edge of a gas-turbine vane and blade[D]. West Lafayette: Purdue University, 2013.

SHEN Beibei, LI Yang, YAN Hongbin, et al. Heat transfer enhancement of wedge-shaped channels by replacing pin fins with Kagome lattice structures[J]. International Journal of Heat and Mass Transfer, 2019, 141: 88-101.

CARCASSI C, FACCHINI B, INNOCENTI L. Heat transfer and pressure drop evaluation in thin wedge-shaped trailing edge[C]//ASME Turbo Expo 2003, Collocated with the 2003 International Joint Power Generation Conference. Atlanta, USA: ASME, 2003: 111-122.

FACCHINI B, INNOCENTI L, TARCHI L. Pedestal and endwall contribution in heat transfer in thin wedge shaped trailing edge[C]//ASME Turbo Expo 2004: Power for Land, Sea, and Air. Vienna, Austria: ASME, 2004: 101-111.

BENIAICHE A, GHENAIET A, FACCHINI B. Experimental and numerical investigations of internal heat transfer in an innovative trailing edge blade cooling system: stationary and rotation effects, part 1—experimental results[J]. Heat and Mass Transfer, 2017, 53(2): 475-490.

BIANCHINI C, FACCHINI B, SIMONETTI F, et al. Numerical and experimental investigation of turning flow effects on innovative pin fin arrangements for trailing edge cooling configurations[J]. Journal of Turbomachinery, 2012, 134(2): 021005.

肖克华, 罗稼昊, 饶宇. 航空发动机涡轮叶片尾缘楔形通道交错肋冷却实验[J]. 上海交通大学学报, 2022, 56(8): 1034-1042. XIAO Kehua, LUO Jiahao, RAO Yu. Experiment on wedge-shaped latticework channel cooling applied in aero engine gas turbine blade trailing edge[J]. Journal of Shanghai Jiao Tong University, 2022, 56(8): 1034-1042.

邓宏武, 谭艳, 王佳仁, 等. 带交错肋结构涡轮叶片复合通道的实验[J]. 航空动力学报, 2010, 25(9): 1931-1937. DENG Hongwu, TAN Yan, WANG Jiaren, et al. Experimental study on the turbine blade cooling channel with crossed-ribs[J]. Journal of Aerospace Power, 2010, 25(9): 1931-1937.

邓宏武, 潘文艳, 陶智, 等. 开槽交错肋通道换热和流阻特性[J]. 北京航空航天大学学报, 2007, 33(10): 1158-1161. DENG Hongwu, PAN Wenyan, TAO Zhi, et al. Heat transfer and flow resistance in a notched crossed-rib channel[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(10): 1158-1161.

姚世传, 陈榴, 轩笠铭, 等. 跨音速透平叶栅尾缘劈缝射流的数值研究[J]. 动力工程学报, 2018, 38(2): 92-97. YAO Shichuan, CHEN Liu, XUAN Liming, et al. Simulation study of the trailing edge slot ejection on a transonic turbine cascade[J]. Journal of Chinese Society of Power Engineering, 2018, 38(2): 92-97.

张玲, 史梦颖, 郭青, 等. 涡轮叶片尾缘气膜冷却耦合传热的数值模拟[J]. 动力工程学报, 2020, 40(1): 31-38. ZHANG Ling, SHI Mengying, GUO Qing, et al. Conjugate heat transfer simulation of film cooling on trailing edge cutback of gas turbine blades[J]. Journal of Chinese Society of Power Engineering, 2020, 40(1): 31-38.

BENIAICHE A, BONANNI L, CARCASCI C. TLC measurements of heat transfer under rotating conditions at high Reynolds number in an innovative trailing edge cooling system[C]//ASME 2012 Gas Turbine India Conference. Mumbai, India: ASME, 2012: 413-422.

BENIAICHE A, GHENAIET A, CARCASCI C, et al. Heat transfer investigation in new cooling schemes of a stationary blade trailing edge[J]. Applied Thermal Engineering, 2015, 87: 816-825.

BENIAICHE A, GHENAIET A, CARCASCI C, et al. Experimental study of a cooling scheme for a turbine blade trailing edge[J]. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 2015, 229(8): 832-848.

LI Yang, SHEN Beibei, YAN Hongbin, et al. Heat transfer enhancement of rotating wedge-shaped channels with pin fins and Kagome lattices[J]. Numerical Heat Transfer, Part A: Applications, 2020, 77(12): 1014-1033.

RALLABANDI A P, LIU Y H, HAN J C. Heat transfer in trailing edge wedge-shaped pin-fin channels with slot ejection under high rotation numbers[J]. Journal of Thermal Science and Engineering Applications, 2011, 3(2): 021007.

ZHU B, CHI X, DENNIS R A, et al. Internal cooling inside an L-shaped duct with pin-fin turbulators under rotating and non-rotating conditions with and without sand particles[C]//ASME Turbo Expo 2007: Power for Land, Sea, and Air. Montreal, Canada: ASME, 2007: 533-543.

YAN Kaixin, DENG Hongwu, LI Hua. Experimental and numerical investigation of thermo-hydraulic behavior in a rotating wedge-shaped trailing edge channel with internal jet impingement[J]. Applied Thermal Engineering, 2023, 234: 121244.

DENG Hongwu, WANG Jiasen, BAI Lei, et al. Heat transfer characteristics in a rotating wedge-shaped ribbed trailing edge with impingement jet[J]. Experimental Heat Transfer, 2021, 34(1): 18-35.

WRIGHT L M, LIU Y H, HAN J C, et al. Heat transfer in trailing edge, wedge-shaped cooling channels under high rotation numbers[J]. ASME Journal of Heat and Mass Transfer, 2008, 130(7): 071701.

CELIK I B, GHIA U, ROACHE P J, et al. Procedure for estimation and reporting of uncertainty due to discretization in CFD applications[J]. Journal of Fluids Engineering, 2008, 130(7): 078001.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

暂无数据