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TECHNICAL PAPERS

Measurement of Eddy Diffusivity of Momentum in Film Cooling Flows With Streamwise Injection

[+] Author and Article Information
R. W. Kaszeta, T. W. Simon

Heat Transfer Laboratory, University of Minnesota, Minneapolis, MN 55455

J. Turbomach 122(1), 178-183 (Feb 01, 1999) (6 pages) doi:10.1115/1.555421 History: Received February 01, 1999
Copyright © 2000 by ASME
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References

Quarmby,  A., and Quirk,  R., 1974, “Axisymmetric and Non-Axisymmetric Turbulent Diffusion in a Plain Circular Tube at High Schmidt Number,” Int. J. Heat Mass Transf., 17, pp. 143–174.
Sathyamurthy, P., and Patankar, S. V., 1992, “Film Cooling Studies Using a Three-Dimensional Parabolic Procedure,” University of Minnesota Supercomputer Institute Research Report 92/44.
Leylek,  J. H., and Zerkle,  R. D., 1994, “Discrete-Jet Film Cooling: A Comparison of Computational Results With Experiments,” ASME J. Turbomach., 116, pp. 358–368.
Bergeles,  G., Gosman,  A. D., and Launder,  B. E., 1978, “The Turbulent Jet in a Cross Stream at Low Injection Rates: A Three-Dimensional Numerical Treatment,” Num. Heat Transfer, 1, pp. 217–242.
Xu, J. Z., Ko, S. Y., Chen, S. J., and Tsou, F. K., 1990, “Computer Simulation of Film-Cooling With Coolants From One and Two Rows of Holes,” ASME Paper No. 90-WA/HT-7.
Wang, L., Tsang, H., Simon, T. W., and Eckert, E. R. G., 1996, “Measurements of a Mean Flow and Eddy Transport Over a Film Cooling Surface,” Proc, 31st National Heat Transfer Conference, Vol. 5, ASME HTD-Vol. 327, pp. 71–79.
Forth, C. J. P., and Jones, T. V., 1986, “Scaling Parameters in Film Cooling,” Proc. 8th Intl. Heat Transfer Conference, Vol. 3, pp. 1271–1276.
Goebel, S. G., Abuaf, N., Lovett, J. A., and Lee, C.-P., 1993, “Measurements of Combustor Velocity and Turbulence Profiles,” ASME Paper No. 93-GT-228.
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.
Kaszeta, R. W., Simon, T. W., Oke, R. A., and Burd, S. W., 1998, “Flow Measurements in Film Cooling Flows With Lateral Injection,” ASME Paper No. 98-GT-54.
Russ, S., and Simon, T. W., 1990, “Signal Processing Using the Orthogonal Triple-Wire Equations,” Flow Lines, the TSI quarterly magazine, Winter.
Laufer, J., 1953, “The Structure of Turbulence in Fully-Developed Pipe Flows,” NACA Report 1174.
Kohli,  A., and Bogard,  D. G., 1997, “Adiabatic Effectiveness. Thermal Fields, and Velocity Fields for Film Cooling With Large Angle Injection,” ASME J. Turbomach., 119, pp. 352–358.
Eckett,  E. R. G., 1987, “Cross Transport of Energy in Fluid Streams,” Wärme Stoff, 21, pp. 73–81
Starr, V. P., 1968, Physics of Negative Viscosity Phenomena, McGraw-Hill, New York.
McMabon,  H. M., Hester,  D. D., and Palfery,  J. G., 1971, “Vortex Shedding from a Turbulent Jet in a Cross-Wind,” J. Fluid Mech., 48, No. 1, pp. 73–80.
Burd,  S. W., and Simon,  T. W., 1999, “Turbulence Spectra and Length Scales Measured in Film Coolant Flows Emerging From Discrete Holes,” ASME J. Turbomach., 121, pp. 551–557.

Figures

Grahic Jump Location
Ratio of eddy diffusivities, εM,zM,y, at x/D=2.5 with l=1.0
Grahic Jump Location
Measurement planes and film cooling geometry
Grahic Jump Location
Mean velocity distribution ū/U0 (a), v̄,w̄ (b) versus y/D at x/D=2.5 with l=1.0
Grahic Jump Location
Turbulent shear stress uw [m2 /s2 ] and associated gradient ∂ū/∂z [s−1 ] at x/D=2.5 with l=1.0
Grahic Jump Location
Turbulent shear stress uv [m2 /s2 ] (a) and associated gradient ∂ū/∂y [s−1 ] (b), versus y/D at x/D=2.5 with l=1.0
Grahic Jump Location
Eddy diffusivity of momentum in the z direction, εM,z [m2 /s], at x/D=2.5 with l=1.0
Grahic Jump Location
Eddy diffusivity of momentum in the y direction, εM,y [m2 /s], at x/D=2.5 with l=1.0

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