Effect of Angle between the Primary and Auxiliary Holes of an Anti-vortex Film Cooling hole

被引:3
作者
Moon, Younggi [1 ]
Park, Soon Sang [1 ]
Park, Jung Shin [1 ]
Kwak, Jae Su [1 ]
机构
[1] Korea Aerosp Univ, Sch Aerosp & Mech Engn, Goyang, South Korea
来源
2014 ASIA-PACIFIC INTERNATIONAL SYMPOSIUM ON AEROSPACE TECHNOLOGY, APISAT2014 | 2015年 / 99卷
关键词
Film cooling; Anti-vortex film cooling; CFD;
D O I
10.1016/j.proeng.2014.12.690
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
In this paper, we analytically investigated the effect of the angle between primary and auxiliary film cooling holes of an anti-vortex hole on the film cooling effectiveness. The effect of blowing ratio and the mainstream turbulence intensity were also considered. A commercial software, CFX was utilized and the RNG k-epsilon turbulence model was selected as the turbulence model for the analysis. The angle between primary and auxiliary hole was varied from 0 to 75 degrees and the blowing ratio was ranged from 0.25 to 2.0. Four different mainstream turbulence intensities were also considered. Results showed that the anti-vortex film cooling holes performed better than the cylindrical hole. Also, the film cooling effectiveness for the anti-vortex holes were strongly affected by the angle between primary and auxiliary holes of the anti-vortex film cooling hole and the mainstream turbulence intensity. (C) 2015 The Authors. Published by Elsevier Ltd.
引用
收藏
页码:1492 / 1496
页数:5
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