A comparative analysis of various shaped film-cooling holes

被引：46

作者：

Kim, Sun-Min ^{[1
]}

Lee, Ki-Don ^{[1
]}

Kim, Kwang-Yong ^{[1
]}

机构：

[1] Inha Univ, Dept Mech Engn, Inchon 402751, South Korea

来源：

HEAT AND MASS TRANSFER | 2012年 / 48卷 / 11期

基金：

新加坡国家研究基金会;

关键词：

HEAT-TRANSFER;

D O I：

10.1007/s00231-012-1043-5

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In the present work, numerical analysis has been performed to investigate the film-cooling performance of various film-cooling hole schemes such as fan, crescent, louver, and dumbbell-shaped holes. To analyze the turbulent flow and the film-cooling mechanism, three-dimensional Reynolds-averaged Navier-Stokes analysis has been performed with the shear stress transport turbulence model. The validation of the numerical results for the film-cooling effectiveness has been performed in comparison with experimental data. The film-cooling performance for each hole shape has been evaluated in terms of the centerline, laterally averaged, and spatially averaged film-cooling effectiveness values. The dumbbell-shaped hole shows the best spatially averaged film-cooling effectiveness for all blowing ratios tested in this work.

引用

页码：1929 / 1939

页数：11

共 19 条

[1]

[Anonymous], P ASME TURB EXP 2008

[2]

[Anonymous], 1986, AIAA 24 AER SCI M AM

[3]

[Anonymous], 2010, P ASME TURB EXP 2010

[4] A review of shaped hole turbine film-cooling technology [J].

Bunker, RS .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 2005, 127 (04) :441-453

[5] An experimental investigation of a new hybrid film cooling scheme [J].

Ghorab, M. G. ;

Hassan, I. G. .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2010, 53 (21-22) :4994-5007

[6] A detailed analysis of film cooling physics: Part III - Streamwise injection with shaped holes [J].

Hyams, DG ;

Leylek, JH .

JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME, 2000, 122 (01) :122-132

[7]

Launder B. E., 1974, Letters in Heat and Mass Transfer, V1, P131, DOI 10.1016/0094-4548(74)90150-7

[8]

LU Y, 2007, THESIS LOUISIANA STA

[9] Effect of Trench Width and Depth on Film Cooling From Cylindrical Holes Embedded in Trenches [J].

Lu, Yiping ;

Dhungel, Alok ;

Ekkad, Srinath V. ;

Bunker, Ronald S. .

JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME, 2009, 131 (01)

[10]

Menter F. R., 2001, 16 BRAZ C MECH ENG C

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