An experimental and numerical study of the flow field and the downstream film cooling performance of cylindrical and diffuser shaped cooling holes is presented. The measurements were conducted on a flat plate with a single cooling hole with coolant ejected from a plenum. The flow field was investigated by means of 3D-PIV as well as 3D-LDV measurements, the downstream film cooling effectiveness by means of infrared thermography. Cylindrical and diffuser holes without lateral inclination have been examined, varying blowing ratio and density ratio as well as freestream turbulence levels. 3D-CFD simulations have been performed and validated along with the experimental efforts. The results, presented in terms of contour plots of the three normalized velocity components as well as adiabatic film cooling effectiveness, clearly show the flow structure of the film cooling jets and the differences brought about by the variation of hole geometry and flow parameters. The quantitative agreement between experiment and CFD was reasonable, with better agreement for cylindrical holes than for diffuser holes.
Issue Section:
Research Papers
References
1.
Goldstein
, R. J.
, Eckert
, E. R. G.
, and Ramsey
, J. W.
, 1968
, “Film Cooling With Injection Through Holes: Adiabatic Wall Temperatures Downstream of a Circular Hole
,” J. Eng. Power
, 90
, pp. 384
–393
. 10.1115/1.36092232.
Goldstein
, R. J.
, Eckert
, E. R. G.
, Eriksen
, V. L.
, and Ramsey
, J. W.
, 1970
, “Film Cooling Following Injection Through Inclined Circular Tubes
,” Israel J. Technol.
, 8
, pp. 145
–154
.3.
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 Transfer
, 17
, pp. 595
–607
.10.1016/0017-9310(74)90007-64.
Foster
, N. W.
, and Lampard
, D.
, 1980
, “The Flow and Film Cooling Effectiveness Following Injection Through a Row of Holes
,” J. Eng. Power
, 102
, pp. 584
–588
.10.1115/1.32303065.
Baldauf
, S.
, Schulz
, A.
, and Wittig
, S.
, 2001
, “High Resolution Measurements of Local Heat Transfer Coefficients by Discrete Hole Film Cooling
,” ASME J. Turbomach.
, 123
, pp. 749
–755
.10.1115/1.13872456.
Baldauf
, S.
, Schulz
, A.
, and Wittig
, S.
, 2001
, “High Resolution Measurements of Local Effectiveness by Discrete Hole Film Cooling
,” ASME J. Turbomach.
, 123
, pp. 758
–765
.10.1115/1.13717787.
Schmidt
, D. L.
, Sen
, B.
, and Bogard
, D.
, 1996
, “Film Cooling With Compound Angle Holes: Adiabatic Effectiveness
,” ASME J. Turbomach.
, 118
, pp. 807
–813
.10.1115/1.28409388.
Ligrani
, P.
, Wigle
, J. M.
, and Jackson
, S.
, 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. 353
–362
.10.1115/1.29114079.
Goldstein
, R. J.
, and Jin
, P.
, 2000
, “Film Cooling Downstream of a Row of Discrete Holes With Compound Angle
,” ASME Paper No. 2000-GT-248
.10.
Lutum
, E.
, and Johnson
, B. V.
, 1998
, “Influence of the Hole Length-to-Diameter Ratio on Film Cooling With Cylindrical Holes
,” ASME Paper No. 98-GT-10
.11.
Burd
, S. W.
, Kaszeta
, R. W.
, and Simon
, T. W.
, 1998
, “Measurements in Film Cooling Flows: Hole L/D and Turbulence Intensity Effects
,” ASME J. Turbomach.
, 120
, pp. 791
–798
.10.1115/1.284179112.
Bunker
, R.
, 2005
, “A Review of Shaped Hole Turbine Film-Cooling Technology
,” ASME J. Heat Transfer
, 127
, pp. 441
–453
.10.1115/1.186056213.
Gritsch
, M.
, Schulz
, A.
, and Wittig
, S.
, 1997
, “Adiabatic Wall Effectiveness Measurements of Film-Cooling Holes With Expanded Exits
,” 42nd ASME International Gas Turbine and Aeroengine Congress
, Orlando, FL, June 2–5.14.
Saumweber
, C.
, and Schulz
, A.
, 2008
, “Effect of Geometry Variations on the Cooling Perfomance of Fan-Shaped Cooling Holes
,” ASME
Paper No. GT2008-51038.10.1115/GT2008-5103815.
Gritsch
, M.
, Colban
, W.
, Schär
, H.
, and Döbbeling
, K.
, 2005
, “Effect of Hole Geometry on the Thermal Performance of Fan-Shaped Film Cooling Holes
,” ASME J. Turbomach.
, 127
, pp. 718
–725
.10.1115/1.201931516.
Heneka
, C.
, Schulz
, A.
, Bauer
, H.-J.
, Heselhaus
, A.
, and Crawford
, M. E.
, 2010
, “Film Cooling Performance of Sharp-Edged Diffuser Holes With Lateral Inclination
,” ASME
Paper No. GT2010-23090.10.1115/GT2010-2309017.
Pietrzyk
, J. R.
, Bogard
, D. G.
, and Crawford
, M. E.
, 1989
, “Hydrodynamic Measurements of Jets in Crossflow for Gas Turbine Film Cooling Applications
,” ASME J. Turbomach.
, 111
, pp. 139
–145
.10.1115/1.326224818.
Thole
, K. A.
, Gritsch
, M.
, Schulz
, A.
, and Wittig
, S.
, 1998
. “Flowfield Measurements for Film-Cooling Holes With Expanded Exits
,” ASME J. Turbomach.
, 120
, pp. 327
–336
.10.1115/1.284141019.
Lee
, S. W.
, Lee
, J. S.
, and Ro
, S. T.
, 1994
, “Experimental Study on the Flow Characteristics of Streamwise Inclined Jets in Crossflow on Flat Plate
,” ASME J. Turbomach.
, 116
, pp. 97
–105
.10.1115/1.292828320.
Lee
, S. W.
, Kim
, Y. B.
, and Lee
, J. S.
, 1997
, “Flow Characteristics and Aerodynamic Losses of Film-Cooling Jets With Compound Angle Orientations
,” ASME J. Turbomach.
, 119
, pp. 310
–319
.10.1115/1.284111421.
Jessen
, W.
, Schröder
, W.
, and Klaas
, M.
, 2007
, “Evolution of Jets Effusing From Inclined Holes Into Crossflow
,” Int. J. Heat Fluid Flow
, 28
, pp. 1312
–1326
.10.1016/j.ijheatfluidflow.2007.06.01022.
Jessen
, W.
, Konopka
, M.
, and Schröder
, W.
, 2010
, “Particle-Image Velocimetry Measurements of Film Cooling in an Adverse Pressure Gradient Flow
,” ASME
Paper No. GT2010-22411.10.1115/GT2010-2241123.
Kercher
, D.
, 1998
, “A Film-Cooling CFD Bibliography: 1971-1996
,” Int. J. Rotating Mach.
, 4
, pp. 61
–72
.10.1155/S1023621X9800006224.
Leylek
, J.
, and Zerkle
, R.
, 1994
, “Discrete-Jet Film Cooling: A Comparison of Computational Results With Experiments
,” ASME J. Turbomach.
, 116
, pp. 358
–368
.10.1115/1.292942225.
Walters
, D.
, and Leylek
, J.
, 1997
, “A Systematic Computational Methodology Applied to a Three-Dimensional Film-Cooling Flowfield
,” ASME J. Turbomach.
, 119
(4
), pp. 777
–785
.10.1115/1.284118826.
Walters
, D.
, and Leylek
, J.
, 2000
, “A Detailed Analysis of Film Cooling Physics: Part I—Streamwise Injection With Cylindrical Holes
,” ASME J. Turbomach.
, 122
, pp. 102
–108
.10.1115/1.55543327.
Hyams
, D.
, and Leylek
, J.
, 2000
, “A Detailed Analysis of Film Cooling Physics: Part III—Streamwise Injection With Shaped Holes
,” ASME J. Turbomach.
, 122
, pp. 122
–132
.10.1115/1.55543528.
Bacci
, A.
, and Facchini
, B.
, 2007
, “Turbulence Modeling for the Numerical Simulation of Film and Effusion Cooling Flows
,” ASME
Paper No. GT2007-27182.10.1115/GT2007-2718229.
Shih
, T. I.-P.
, and Na
, S.
, 2007
, “Momentum-Preserving Shaped Holes for Film Cooling
,” ASME
Paper No. GT-2007-27600.10.1115/GT2007-2760030.
Na
, S.
, and Shih
, T. I.-P.
, 2007
, “Increasing Adiabatic Film-Cooling Effectiveness by Using an Upstream Ramp
,” ASME J. Heat Transfer
, 129
(April
), pp. 464
–471
.10.1115/1.270996531.
Lee
, K.-D.
, and Kim
, K.-Y.
, 2009
, “Optimization of a Fan-Shaped Hole for Film Cooling Using a Surrogate Model
,” ASME
Paper No. GT2009-59520.10.1115/GT2009-5952032.
Kissel
, H. P.
, Weigand
, B.
, von Wolfersdorf
, J.
, Neumann
, S. O.
, and Ungewickell
, A.
, 2007
, “An Experimental and Numerical Investigation of the Effect of Cooling Channel Crossflow on Film Cooling Performance
,” ASME
Paper No. GT2007-27102.10.1115/GT2007-2710233.
Colban
, W.
, Thole
, K.
, and Händler
, M.
, 2007
, “Experimental and Computational Comparisons of Fan-Shaped Film Cooling on a Turbine Vane Surface
,” ASME J. Turbomach.
, 129
, pp. 23
–31
.10.1115/1.237074734.
Goormans-Francke
, C.
, Carabin
, G.
, and Hirsch
, C.
, 2008
, “Mesh Generation for Conjugate Heat Transfer Analysis of a Cooled High Pressure Turbine Stage
,” ASME
Paper No. GT2008-50660.10.1115/GT2008-5066035.
Miller
, K. L.
, and Crawford
, M. E.
, 1984
, “Numerical Simulation of Single, Double, and Multiple Row Film Cooling Effectiveness and Heat Transfer
,” ASME Paper No. 84-GT-112
.36.
Heidmann
, J. D.
, and Hunter
, S. D.
, 2001
, ” Technical Report No. NASA/TM-2001-210817
.37.
Burdet
, A.
, Abhari
, R. S.
, and Rose
, M. G.
, 2005
, “Modeling of Film Cooling: Part II—Model for Use in 3D CFD
,” ASME
Paper No. GT2005-68780.10.1115/GT2005-6878038.
Tartinville
, B.
, and Hirsch
, C.
, 2008
, “Modelling of Film Cooling for Turbine Blade Design
,” ASME
Paper No. GT2008-50316.10.1115/GT2008-5031639.
auf dem Kampe
, T. G.
, and Völker
, S.
, 2011
, “A Model for Cylindrical Hole Film Cooling—Part II: Model Formulation, Implementation and Results
,” ASME J. Turbomach.
, 134
(6
), p. 061011
.10.1115/1.400630740.
auf dem Kampe
, T. G.
, and Völker
, S.
, 2010
, “A Correlation-Based Methodology to Predict the Flow Structure of Flows Emanating From Cylindrical Holes With Application to Film Cooling
,” Heat Trans. Res.
, 41
(6
), pp. 687
–699
.10.1615/HeatTransRes.v41.i6.7041.
auf dem Kampe
, T. G.
, Zehe
, F. N.
, and Völker
, S.
, 2011
, “A Model for Cylindrical Hole Film Cooling—Part I: A Correlation for Jet-Flow With Application to Film Cooling
,” ASME J. Turbomach.
, 134
(6
) p. 061010
.10.1115/1.400630642.
Kays
, W.
, Crawford
, M.
, and Weigand
, B.
, 2004
, Convective Heat and Mass Transfer
, McGraw-Hill Higher Education
, New York
.43.
Martiny
, M.
, Schiele
, R.
, Gritsch
, M.
, Schulz
, A.
, and Wittig
, S.
, 1997
, “In Situ Calibration for Quantitative Infrared Thermography
,” Eurotherm S.
, 50
, pp. 3
–8
.44.
Schulz
, A.
, 2000
, “Infrared Thermography as Applied to Film Cooling of Gas Turbine Components
,” Meas. Sci. Technol.
, 11
, pp. 1
–9
.10.1088/0957-0233/11/7/31145.
Ochs
, M.
, Horbach
, T.
, Schulz
, A.
, Koch
, R.
, and Bauer
, H.-J.
, 2009
, “A Novel Calibration Method for an Infrared Thermography System Applied to Heat Transfer Experiments
,” Meas. Sci. Technol.
, 20
, pp. 9
–17
.10.1088/0957-0233/20/7/07510346.
Kline
, S.
, and McClintock
, F.
, 1953
, “Describing Uncertainties in Single-Sample Experiments
,” Mech. Eng.
, 75
(1
), pp. 3
–8
.47.
Menter
, F.
, 1994
, “Two-Equation Eddy-Viscosity Turbulence Models for Engineering Applications
,” AIAA J.
, 32
, pp. 1598
–1605
.10.2514/3.1214948.
Pedersen
, D. R.
, Eckert
, E. R. G.
, and Goldstein
, R. J.
, 1977
, “Film Cooling With Large Density Differences Between the Mainstream and the Secondary Fluid Measured by the Heat-Mass Transfer Analogy
,” ASME J. Heat Transfer
, 99
, pp. 620
–627
.10.1115/1.345075249.
Baldauf
, S.
, Scheurlen
, M.
, Schulz
, A.
, and Wittig
, S.
, 2002
, “Correlation of Film-Cooling Effectiveness From Thermographic Measurements at Enginelike Conditions
,” ASME J. Turbomach.
, 124
, pp. 686
–698
.10.1115/1.1504443© 2013 by ASME
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