IMECH-IR  > 流固耦合系统力学重点实验室
Numerically thermal analysis of a turbine vane at high temperature
Prapamonthon P1,2; Yooyen S1; Sleesongsom S1
Source PublicationJournal of Physics: Conference Series
2019-11-01
Conference Name5th International Workshop on Heat/Mass Transfer Advances for Energy Conservation and Pollution Control, IWHT 2019
Conference DateAugust 13, 2019 - August 16, 2019
Conference PlaceNovosibirsk, Russia
Abstract

Using conjugate heat transfer, thermal analysis of a turbine vane coated with thermal barrier coating (TBC) at a high temperature is presented. Numerical results are carried out at two turbine inlet temperatures (T∞) i.e. 783 K (low) and 1566 K (high) under two turbulence intensities (Tus) i.e. 8.3% and 16.6%. The main findings of this research are that for both Tus, the metal surface temperature reduction at the high temperature is higher than that at the low temperature because of the lower heat-flux ratio at the higher temperature. Based on the metal temperature reduction, the increasing inlet temperature has a greater influence than the increasing turbulence intensity. The results also indicate that at T∞ = 783 K, on the pressure side (PS) the metal surface temperature reduction at Tu = 8.3% is lower than that at Tu = 16.6%, while on the suction side (SS) no significant difference happens when Tu increases. Interestingly, an inverse phenomenon happens for both PS and SS, that is the metal surface temperature reduction at Tu = 8.3% increases above that at Tu = 16.6% when T∞ increases. This discrepancy may suggest the instability of the surface heat-flux ratio due to complex heat convection at the different inlet temperatures.

Indexed ByEI
Language英语
Citation statistics
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/81336
Collection流固耦合系统力学重点实验室
Affiliation1.Department of Aeronautical Engineering, International Academy of Aviation Industry, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand
2.Key Laboratory for Mechanics in Fluid-Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
Recommended Citation
GB/T 7714
Prapamonthon P,Yooyen S,Sleesongsom S. Numerically thermal analysis of a turbine vane at high temperature[C]Journal of Physics: Conference Series,2019.
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