IMECH-IR  > 流固耦合系统力学重点实验室
Numerical prediction of cooling performance sensitivity of 1st stage nozzle guide vane under aerothermal conditions
Prapamonthon P; Yin B(银波); Yang GW(杨国伟); Zhang MH(张莫晗)
Source PublicationASME 2019 Gas Turbine India Conference, GTINDIA 2019
2019
Conference NameASME 2019 Gas Turbine India Conference, GTINDIA 2019
Conference DateDecember 5, 2019 - December 6, 2019
Conference PlaceChennai, Tamil Nadu, India
AbstractTo obtain high power and thermal efficiency, the 1st stage nozzle guide vanes of a high-pressure turbine need to operate under serious circumstances from burned gas coming out of combustors. This leads to vane suffering from effects of high thermal load, high pressure and turbulence, including flow-separated transition. Therefore, it is necessary to improve vane cooling performance under complex flow and heat transfer phenomena caused by the integration of these effects. In fact, these effects on a high-pressure turbine vane are controlled by several factors such as turbine inlet temperature, pressure ratio, turbulence intensity and length scale, vane curvature and surface roughness. Furthermore, if the vane is cooled by film cooling, hole configuration and blowing ratio are important factors too. These factors can change the aerothermal conditions of the vane operation. The present work aims to numerically predict sensitivity of cooling performances of the 1st stage nozzle guide vane under aerodynamic and thermal variations caused by three parameters i.e. pressure ratio, coolant inlet temperature and height of vane surface roughness using Computational Fluid Dynamics (CFD) with Conjugate Heat Transfer (CHT) approach. Numerical results show that the coolant inlet temperature and the vane surface roughness parameters have significant effects on the vane temperature, thereby affecting the vane cooling performances significantly and sensitively. Copyright © 2019 ASME.
KeywordAerothermal condition Cooling effectiveness Cooling performance Thermal sensitivity Turbine vane
ISBN9780791883525
URL查看原文
Indexed ByEI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/85114
Collection流固耦合系统力学重点实验室
Affiliation1.Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100190, China
2.Department of Aeronautical Engineering, International Academy of Aviation Industry, King Mongkut’s Institute of Technology, Ladkrabang, Bangkok, 10520, Thailand
3.School of Engineering Science, University of Chinese Academy of Sciences, Beijing, 100049, China
Recommended Citation
GB/T 7714
Prapamonthon P,Yin B,Yang GW,et al. Numerical prediction of cooling performance sensitivity of 1st stage nozzle guide vane under aerothermal conditions[C]ASME 2019 Gas Turbine India Conference, GTINDIA 2019,2019.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Prapamonthon P]'s Articles
[银波]'s Articles
[杨国伟]'s Articles
Baidu academic
Similar articles in Baidu academic
[Prapamonthon P]'s Articles
[银波]'s Articles
[杨国伟]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Prapamonthon P]'s Articles
[银波]'s Articles
[杨国伟]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.