High-pressure turbine rotor blade end-wall flow and cooling characteristics: Trends and perspectives

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外文摘要：Aero-engines are designed to operate at extremely high temperatures to achieve the highest possible efficiency and specific power during operation. Such extreme temperatures place extraordinarily high thermal loads on engine components, the melting points of which can be easily exceeded; thus, significant harm can be caused to the engines if efficient cooling measures are not provided. This paper reviews the global research progress regarding the flow and heat transfer characteristics of turbine rotor-blade end-walls, comprehensively analyzes typical research results for air-film cooling in the end-wall region along with its influencing factors, and summarizes simulation and experimental methods used to study end-wall flow and cooling characteristics. Finally, it emphasizes future research directions, which include end-wall structural modifications, improved cooling technologies, better cooling-efficiency measurement methods, and more robust composite materials.

外文关键词：

Turbine rotor-blade end-wallflow and heat transferfilm coolingcooling configurationsexperimental measurementnumerical simulation

作者：

Yijing Yan、Yiwei Dong、Chaolin Wu、Xintian You、Jingyu Zhang、Song Liu、Qinqin Wang、Wen Guo

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作者单位：

School of Aerospace Engineering, Xiamen University, Xiamen, China

School of Aerospace Engineering, Xiamen University, Xiamen, China||AECC Sichuan Gas Turbine Research Establishment, Chengdu, China

AECC Sichuan Gas Turbine Research Establishment, Chengdu, China||Research Institute of Aero-Engine, Beihang University, Beijing, China

AECC Sichuan Gas Turbine Research Establishment, Chengdu, China

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出版年：

2025

DOI：

10.1177/09576509251331255

Proceedings of the Institution of Mechanical Engineers, Part A. Journal of power and energy

ISSN：0957-6509

年,卷(期)：2025.239(4)

参考文献量159