Conjugate Heat Transfer Analysis of Film Cooling Flows

被引：0
|
作者：
Hideaki SUGISHITA
Hideyuki UECHI
Kiyoshi SUENAGA
机构：
[1] Takasago Research and Development Center Mitsubishi Heavy Industries Ltd. Takasago 676-8686 Japan
[2] Takasago Research and Development Center Mitsubishi Heavy Industries Ltd. Takasago 676-8686 Japan
来源：
JournalofThermalScience | 2006年 / 01期
关键词：
film cooling; conjugate heat transfer; blowing ratio;
D O I：
暂无
中图分类号：
TK124 [传热学];
学科分类号：
摘要：
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-e 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.
引用
收藏
页码：85 / 91
页数：7
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