Film cooling and heat transfer with air injection through two rows of compound angle holes.

被引：0

作者：

Jubran, BA ^{[1
]}

AlHamadi, AK ^{[1
]}

Theodoridis, G ^{[1
]}

机构：

[1] ARISTOTELIAN UNIV THESSALONIKI,DEPT MECH ENGN,LAB HEAT TRANSFER & ENVIRONM ENGN,GR-54006 THESSALONIKI,GREECE

来源：

HEAT AND MASS TRANSFER | 1997年 / 33卷 / 1-2期

关键词：

D O I：

10.1007/s002310050165

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper describes the results of an experimental investigation into the film cooling effectiveness and the heat transfer characteristics of two staggered rows of compound angle holes. The effects of hole spacings and turbulence intensity on film cooling and heat transfer characteristic are investigated for three blowing rates; 0.5, 1.0 and 1.7. An attempt has been made to correlate the film cooling effectiveness results using a two dimensional correlation group. The increase of spanwise hole spacing results in a reduction in the film cooling effectiveness and an increase in the Stanton number. Increasing the freestream turbulence intensity has caused a significant reduction in the local film cooling effectiveness but increased the Stanton number, especially at blowing rate of 0.5.

引用

页码：93 / 100

页数：8

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