Aerothermodynamics

A Novel Model for CFD-Based Throughflow Analysis of Film-Cooled Turbine Blade

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  • Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China

Online published: 2023-12-01

Supported by

This work is funded by the National Natural Science Foundation of China (Project 51876098), the National Science and Technology Major Project (2017-III-0009-0035) and the National Natural Science Foundation of China (Project 51911540475).

Copyright

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2022

Abstract

This paper presents a novel approach of modeling the air-cooled turbine with CFD-based throughflow analysis. Starting from the basic equations of motion, governing equations and source terms for mass, momentum and energy are formulated in an analytical manner. These source terms are to mimic the authentic injection-mainstream interactions with easy implementation. The source terms in the aero-cooling scenario are related to corresponding sources in the aerodynamic-only analysis. Based on such formulations, a novel strategy is developed to estimate aerodynamic characteristics of a blade row under film cooling with known characteristics under no cooling. The model and the strategy are validated in the classic NASA E3 turbine guide vane under various operating conditions. Sensitivity studies of input parameters are conducted to evaluate the applicability of the proposed model. Specifically, the flow rate distributions of cooling flow at different cooling holes are crucial for accurate predictions.

Cite this article

MAO Yinbo, CHEN Ziyu, SU Xinrong, YUAN Xin . A Novel Model for CFD-Based Throughflow Analysis of Film-Cooled Turbine Blade[J]. Journal of Thermal Science, 2022 , 31(5) : 1759 -1772 . DOI: 10.1007/s11630-022-1579-8

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