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TECHNICAL PAPERS: Gas Turbine Heat Transfer

Film Cooling Effectiveness and Heat Transfer Coefficient Distributions Around Diffusion Shaped Holes

[+] Author and Article Information
Y. Yu, C.-H. Yen, T. I.-P. Shih, M. K. Chyu

Department of Mechanical Engineering, University of Pittsburgh, Pittsburgh, PA 15261

S. Gogineni

Innovative Scientific Solution, Inc., Dayton, OH 45440

J. Heat Transfer 124(5), 820-827 (Sep 11, 2002) (8 pages) doi:10.1115/1.1418367 History: Received February 26, 2000; Revised May 25, 2001; Online September 11, 2002
Copyright © 2002 by ASME
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References

Ligrani,  P. M., Wigle,  J. M., Ciriello,  S., and Jackson,  S. M., 1994, “Film-Cooling From Holes With Compound Angle Orientations: Part 1—Results Downstream of Two Staggered Rows of Holes with 3d Spanwise Spacing,” ASME J. Heat Transfer, 116, pp. 341–352.
Ligrani,  P. M., Wigle,  J. M., and Jackson,  S. M., 1994, “Film-Cooling from Holes With Compound Angle Orientations: Part 2—Results Downstream of a Single Row of Holes with 6d Spanwise Spacing,” ASME J. Heat Transfer, 116, pp. 341–352.
Eriksen,  and Goldstein,  1974, “Heat Transfer and Film Cooling Following Injection Through Inclined Tubes,” ASME J. Heat Transfer, 96, pp. 239–245.
Hay,  N., Lampard,  D., and Saluja,  C. L., 1985, “Effects of Cooling Films on the Heat Transfer Coefficient on a Flat Plate With Zero Mainstream Pressure Gradient,” ASME J. Eng. Gas Turbines Power, 107, pp. 104–110.
Goldstein,  R. J., Eckert,  E. R. G., and Burggraf,  F., 1974, “Effects of Hole Geometry and Density on Three-Dimensional Film Cooling,” Int. J. Heat Mass Transf., 17, pp. 595–607.
Sen,  B., Schmidt,  D. L., and Bogard,  D. G., 1996, “Film Cooling with Compound Angle Holes: Heat Transfer,” ASME J. Turbomach., 118, pp. 800–806.
Schmidt,  D. L., Sen,  B., and Bogard,  D. G., 1996, “Film Cooling with Compound Angle Holes: Adiabatic Effectiveness,” ASME J. Turbomach., 118, pp. 807–813.
Wittig, S., Schultz, Gritsch, M., and Thole, K. A., 1996, “Transonic Film-Cooling Investigations: Effects of Hole Shapes and Orientations,” ASME Paper 96-GT-222.
Gritsch,  M., Schultz,  A., and Wittig,  S., 1998, “Adiabatic Wall Effectiveness Measurements of Film-Cooling Holes with Expanded Exits,” ASME J. Turbomach., 120, pp. 549–556.
Gritsch, M., Schultz, A., and Wittig, S., 1998, “Heat Transfer Measurements of Film-Cooling Holes with Expanded Exits,” ASME Paper 98-GT-28.
Haven, B. A., Yamagata, D. K., Kurosaka, M., Yamawaki, S., and Maya, T., 1997, “Anti-Kidney Pair of Vortices in Shaped Holes and Their Influence on Film Cooling Effectiveness,” ASME Paper 97-GT-45.
Chen, P-H., Ai, D., and Lee, S.-H., 1998, “Effects of Compound Angle Injection on Flat-Plate Film Cooling Through a Row of Conical Holes,” ASME Paper 98-GT-459.
Vedula, R. J., and Metzger, D. E., 1991, “A Method for the Simultaneous Determination of Local Effectiveness and Heat Transfer Distributions in Three-Temperature Convection Situations,” ASME Paper 91-GT-345
Ekkad,  S. V., Zapata,  D., and Han,  J. C., 1997, “Heat Transfer Coefficients Over a Flat Surface With Air and CO2 Injection Through Compound Angle Holes Using a Transient Liquid Crystal Image Method,” ASME J. Turbomach., 119, pp. 580–586.
Ekkad,  S. V., Zapata,  D., and Han,  J. C., 1997, “Film Effectiveness over a Flat Surface With Air and CO2 Injection Through Compound Angle Holes Using a Transient Liquid Crystal Image Method,” ASME J. Turbomach., 119, pp. 587–593.
Yu,  Y., and Chyu,  M. K., 1998, “Influence of Gap Leakage Downstream of the Injection Holes on Film Cooling Performance,” ASME J. Turbomach., 120, pp. 541–548.
Kassab, A. J., Divo, E., and Chyu, M. K., 1999, “A BEM-Based Inverse Algorithm to Retrieve Multi-dimensional Heat Transfer Coefficients from Transient Temperature Measurements,” BETECH99, Proc. 13th International Boundary Element Technology Conference, Computational Mechanics, Las Vegas, June 8–10, 1999, C. S. Chen, C. A. Brebbia, and D. Pepper, eds., Billerica, MA.
Chyu,  M. K., and Ding,  H., 1997, “Heat Transfer in a Cooling Channel With Vortex Generators,” ASME J. Heat Transfer, 119, p. 206.
Kline,  S. J., and McClintock,  F. A., 1953, “Describing Uncertainties in Single-Sample Experiments,” Mech. Eng. (Am. Soc. Mech. Eng.), 75, pp. 3–8.
Metzger,  D. E., Carper,  H. J., and Swank,  L. R., 1968, “Heat Transfer with Film Cooling Near Nontangential Injection Slots,” J. Eng. Power, 90, pp. 157–163.
Metzger,  D. E., and Larson,  D. E., 1986, “Use of Melting Point Surface Coating for Local Convective Heat Transfer Measurements in Rectangular Channel Flows with 90 Degree Turns,” ASME J. Heat Transfer, 108, pp. 48–54.

Figures

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Shape hole geometry and test section
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Spanwise-average film effectiveness
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Spanwise distribution of film effectiveness for non-shaped circular holes at X/D=3.0,M=0.5, and ReD=4300
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Streamwise distribution of film effectiveness: (a) M=0.5; (b) M=1.0; (c) spanwise average, M=0.5; and (d) spanwise average, M=1.0.
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Laser-sheet flow visualization
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Streamwise distribution of heat transfer coefficient: (a) M=0.5; (b) M=1.0; (c) spanwise average, M=0.5; and (d) spanwise average, M=1.0.
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Heat flux ration: (a) M=0.5; (b) M=1.0; (c) spanwise average, M=0.5; and (d) spanwise average, M=1.0.

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