热科学学报（英文版）2006，Vol.15Issue(1)：85-91,7.
Conjugate Heat Transfer Analysis of Film Cooling Flows
Conjugate Heat Transfer Analysis of Film Cooling Flows
Xiaochen LU 1Peixue JIANG 1Hideaki SUGISHITA 2Hideyuki UECHI 2Kiyoshi SUENAGA2
作者信息
- 1. Department of Thermal Engineering, Tsinghua University, Beijing 100084, China
- 2. Takasago Research and Development Center, Mitsubishi Heavy Industries Ltd. Takasago 676-8686, Japan
- 折叠
摘要
Abstract
The objective of this study is to evaluate the potential of various grids to satisfactorily simulate the development of a cooling film, using a coupled computation that takes into account the full geometry. Detailed computations of a single row of 30 degrees round holes on a flat plate are presented for blowing ratios of 0.764, 1.01 and 1.54.The simulation results are compared well with experimental data. The two-layer model gave more accurate results but consumed much more computational time than the standard wall functions. The k-ε turbulence model with wall functions with appropriate values of y+ is suitable for practical use. The results show the importance of the conjugate calculation for accurately describing the influence of the heat transfer within the cooling film.关键词
film cooling/conjugate heat transfer/blowing ratioKey words
film cooling/conjugate heat transfer/blowing ratio分类
能源科技引用本文复制引用
Xiaochen LU,Peixue JIANG,Hideaki SUGISHITA,Hideyuki UECHI,Kiyoshi SUENAGA..Conjugate Heat Transfer Analysis of Film Cooling Flows[J].热科学学报（英文版）,2006,15(1):85-91,7.
