Effect of angle between the primary and auxiliary holes of an anti-vortex film cooling hole

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-ε 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.

关键词： Film cooling Anti-vortex film cooling CFD

作者: Younggi Moon Soon Sang Park Jung Shin Park Jae Su Kwak

作者单位: Graduate student,School of Aerospace and Mechanical Engineering,Korea Aerospace University School of Aerospace and Mechanical Engineering,Korea Aerospace University

会议类型: 国际会议

会议名称: 2014 Asia-Pacific International Symposium on Aerospace Technology(2014亚太航空航天技术学术会议)

会议地点: 上海

会议语种:英文

页码: 1-5

在线出版日期: 2014-09-24（万方平台首次上网日期，不代表论文的发表时间）