Effect of the thermal barrier coating set up and modeling in numerical analysis for prediction gas turbine blade temperature and film cooling effectiveness

IF 6.4 2区工程技术 Q1 MECHANICS

International Communications in Heat and Mass Transfer Pub Date : 2025-03-14 DOI:10.1016/j.icheatmasstransfer.2025.108860

Yong Hui Pi, Jun Su Park

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引用次数: 0

Abstract

Gas turbine blades are protected from hot combustion gases by employing various cooling technologies such as film cooling and thermal barrier coating (TBC). Considering these methods, the accurate prediction of the turbine blade temperature and cooling performance is crucial to ensure the application of the appropriate cooling technology. This study investigated the effect of the TBC setup and modeling through numerical simulations to predict the turbine blade temperature and film cooling effectiveness. Conjugate heat transfer calculations were performed using two different TBC setups and modeling approaches: a thin-material interface model and actual three-dimensional (3D) modeling. Consequently, the calculation using the thin-material interface model yielded a maximum temperature that was 110 °C lower than that obtained using the actual 3D modeling for TBC. When performing calculations using the actual 3D model of the TBC, the film cooling hole angle on the TBC layer was found to change depending on the manufacturing method of the film cooling hole. Accordingly, the discharge pressure of the cooling fluid and the film cooling effectiveness changed owing to the variation in the angle of the film cooling holes on the TBC layer.

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来源期刊

International Communications in Heat and Mass Transfer 工程技术-力学

CiteScore

11.00

自引率

10.00%

发文量

648

审稿时长

32 days

期刊介绍： International Communications in Heat and Mass Transfer serves as a world forum for the rapid dissemination of new ideas, new measurement techniques, preliminary findings of ongoing investigations, discussions, and criticisms in the field of heat and mass transfer. Two types of manuscript will be considered for publication: communications (short reports of new work or discussions of work which has already been published) and summaries (abstracts of reports, theses or manuscripts which are too long for publication in full). Together with its companion publication, International Journal of Heat and Mass Transfer, with which it shares the same Board of Editors, this journal is read by research workers and engineers throughout the world.