Numerical Simulation of Aerodynamic Performance of Film Cooling on a Flat Plate with Surface Roughness

被引：0
|
作者：
Wang, Jianfei [1 ]
Ji, Yongbin [1 ]
Zang, Shusheng [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Inst Turbomachinery, Shanghai 200030, Peoples R China
来源：
MATERIALS SCIENCE, MACHINERY AND ENERGY ENGINEERING | 2014年 / 853卷
关键词：
Surface roughness; Film cooling; Numerical simulation; Aerodynamic performance; Skin friction coefficient; DEGRADATION; TURBINE;
D O I：
10.4028/www.scientific.net/AMR.853.576
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This study is aimed at researching surface roughness effect on the performance of blades in terms of aerodynamics Numerical simulation on a rough flat plate with a row of 35 round film holes under different roughness heights, Reynolds numbers and blowing ratios is conducted to see how they affect film cooling on a flat plate. In terms of aerodynamics, the increase of surface roughness height, Reynolds number and blow ratio will result in the increase of skin friction coefficient. Besides, roughness has combined effects with Reynolds number and blowing ratio So the effect of surface roughness on blades' performance is too big to ignore.
引用
收藏
页码：576 / 581
页数：6
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