Conjugate calculation of a film-cooled blade for improvement of the leading edge cooling configuration
作者机构：B&B-AGEMA GmbHJuelicher Str.338Aachen 52070Germany RWTH AachenAachen 52056Germany Kawvasaki Heavy IndustriesLTD.Gas Turbine&Machinery CompanyAkashi 673-8666Japan
出 版 物：《Propulsion and Power Research》 (推进与动力（英文）)
年 卷 期：2013年第2卷第1期
页 面：1-9页
学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）]
主 题：Gas turbine Rotor blade Film-cooling Conjugate heat transfer Conjugate calculation Pyrometer measurement
摘 要：Great efforts are still put into the design process of advanced film-cooling *** particular,the vanes and blades of turbine front stages have to be cooled extensively for a safe *** conjugate calculation technique is used for the three dimensional thermal load prediction of a fim-cooled test blade of a modern gas ***,it becomes possible to take into account the interaction of internal flows,external flow,and heat transfer without the prescription of heat transfer *** focus of the investigation is laid on the leading edge part of the *** numerical model consists of all internal flow passages and cooling hole rows at the leading ***,the radial gap flow is also part of the *** comparison with thermal pyrometer measurements shows that with respect to regions with high thermal load a qualitatively and quantitatively good agreement of the conjugate results and the measurements can be *** particular,the region in the vicinity of the mid-span section is exposed to a higher thermal load,which requires further improvement of the cooling *** the achieved results demonstrate that the conjugate calculation technique is applicable for reasonable prediction of three-dimensional thermal load of complex cooling configurations for blades.
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