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TECHNICAL PAPERS

Heat/Mass Transfer Measurement Within a Film Cooling Hole of Square and Rectangular Cross Section

[+] Author and Article Information
Hyung Hee Cho, Seung Goo Kang, Dong Ho Rhee

Department of Mechanical Engineering, Yonsei University, 134, Shinchon-dong, Seodaemoon-gu, Seoul 120-749, Korea

J. Turbomach 123(4), 806-814 (Feb 01, 2001) (9 pages) doi:10.1115/1.1400109 History: Received February 01, 2001
Copyright © 2001 by ASME
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References

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.
Gritsch,  M., Schulz,  A., and Wittig,  S., 1988, “Adiabatic Wall Effectiveness Measurements of Film-Cooling Holes With Expanded Exits,” ASME J. Turbomach., 120, pp. 549–556.
Kohli, A., and Bogard, D. G., 1999, “Effects of Hole Shape on Film Cooling With Large Angle Injection,” ASME Paper No. 99-GT-165.
Chen, P. H., Ding, P. P., Hung, M. S., and Shih, P. C., 1999, “Film Cooling Over a Concave Surface Through a Row of Expanded Holes,” ASME Paper No. 99-GT-33.
Cho, H. H., Rhee, D. H., and Kim, B. G., 1999, “Film Cooling Effectiveness and Heat/Mass Transfer Measurement Around a Conical-Shaped Hole With Compound Angle Injection,” ASME Paper No. 99-GT-38.
Bell,  C. M., Hamakawa,  H., and Ligrani,  P. M., 2000, “Film Cooling From Shaped Holes,” ASME J. Heat Transfer, 122, pp. 224–232.
Muldoon, F., and Acharya, S., 1999, “Numerical Investigation of the Dynamical Behavior of a Row of Square Jets in Crossflow Over a Surface,” ASME Paper No. 99-GT-127.
Licu,  D. N., Findlay,  M. J., Gartshore,  I. S., and Salcudean,  M., 2000, “Measurements of Heat Transfer Characteristics for Film Cooling Applications,” ASME J. Turbomach., 122, pp. 546–552.
Watanabe, K., Matsuura, M. Suenaga, K., and Takeishi, K., 1999, “An Experimental Study on the Film Cooling Effectiveness With Expanded Hole Geometry,” Proc. of 7th IGTC, 2 , pp. 615–622.
Takahashi, H., Nuntadusit, C., Kimoto, H., Ishida, H., Ukai, T., and Takeishi, K., 2000, “Characteristics of Various Film Cooling Jets Injected in a Conduit,” Turbine 2000 Intemational Symposium on Heat Transfer in Gas Turbine Systems, Izmir, Turkey, pp. 76–78.
Goldstein,  R. J., Cho,  H. H., and Jabbari,  M. Y., 1997, “Effect of Plenum Crossflow on Heat (Mass) Transfer Near and Within the Entrance of Film Cooling Holes,” ASME J. Turbomach., 119, pp. 761–769.
Metzger, D. E., and Cordaro, J. V., 1979, “Heat Transfer in Short Tubes Supplies From a Cross-Flowing Stream,” ASME Paper No. 79-WA/HT-16.
Byerley, A. R., Ireland, P. T., Jones, T. V., and Ashton, S. A., 1988, “Detailed Heat Transfer Measurements Near and Within the Entrance of a Film Cooling Hole,” ASME Paper No. 88-GT-155.
Cho,  H. H., Jabbari,  M. Y., and Goldstein,  R. J., 1997, “Experimental Mass(Heat) Transfer in and Near a Circular Hole in a Flat Plate,” Int. J. Heat Mass Transf., 40(10), pp. 2431–2443.
Cho,  H. H., and Goldstein,  R. J., 1995, “Heat(Mass) Transfer and Film Cooling Effectiveness With Injection Through Discrete Holes—Part I: Within Holes and on the Back Surface,” ASME J. Turbomach., 117, pp. 440–450.
Cho,  H. H., and Goldstein,  R. J., 1997, “Total Coverage Discrete Hole Wall Cooling,” ASME J. Turbomach., 119, pp. 320–329.
Lee,  S. W., Park,  S. W., and Lee,  J. S., 2001, “Flow Characteristics Inside Circular Injection Holes Normally Oriented to a Crossflow: Part I—Flow Visualizations and Flow Data in the Symmetry Plane,” ASME J. Turbomach., 123, pp. 266–273.
Hay, N., and Lampard, D., 1995, “The Discharge Coefficient of Flared Film Cooling Holes,” ASME Paper No. 95-GT-15.
Ambrose,  D., Lawrenson,  I. J., and Sparke,  C. H. S., 1975, “The Vapor Pressure of Naphthalene,” J. Chem. Thermodyn., 7, pp. 1173–1176.
Goldstein,  R. J., and Cho,  H. H., 1995, “A Review of Mass Transfer Measurement Using Naphthalene Sublimation,” Exp. Therm. Fluid Sci., 10, pp. 416–434.
Eckert, E. R. G., 1976, “Analogies to Heat Transfer Processes,” in: Measurements in Heat Transfer, E. R. G. Eckert, and R. J. Goldstein, eds., pp. 397–423, Hemisphere Pub., New York.
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Figures

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Schematic view of wind tunnel and test section for square and rectangular film cooling holes
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Schematic views of injection holes and crossflow ducts
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Velocity vector plots in square film cooling hole: 0-1: trailing edge side; 1-2, 3-0: sidewalls: 2-3: leading edge side
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Velocity vector plot at center-plane
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Velocity vector plots in square film cooling hole
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Contour plots of Sh for the inside hole surface without mainstream
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Contour plots of Sh for square film cooling hole at ReDh=25,000
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Calculated heat transfer coefficients on the inside hole surface at M=0.39
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Local distributions of Sh for square film cooling hole at ReDh=25,000
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Affected area of the inside circular hole surface by mainflow 15
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Affected area of the inside square hole surface by mainflow
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Streamwise distribution of Sh in square film cooling hole with various blowing ratios at ReDh=25,000
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Contour plots of Sh for square film cooling hole at M=0.39
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Streamwise distribution of Sh in square injection hole with various Reynolds numbers at M=0.39
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Contour plots of Sh for rectangular film cooling hole at ReDh=25,000
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Streamwise distribution of Sh in rectangular film cooling hole for various blowing rates at ReDh=25,000
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Contour plots of Sh for rectangular film cooling hole at M=0.39
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Schematic view of asymmetric crossflow duct
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Velocity vector plots in square injection hole with asymmetric crossflow duct
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Contour plot of Sh for square injection hole with asymmetric crossflow duct for M=0.39 and ReDh=25,000
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Streamwise distributions of Sh with asymmetric crossflow duct for various Reynolds numbers at M=0.39

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