0
TECHNICAL PAPERS

Influence of Internal Flow on Film Cooling Effectiveness

[+] Author and Article Information
Günter Wilfert

ABB Corporate Research Ltd., CH-5405 Baden-Dättwil, Switzerland

Stefan Wolff

Institut für Strahlantriebe, Universität der Bundeswehr München, D-85577 Neubiberg, Germany

J. Turbomach 122(2), 327-333 (Feb 01, 1999) (7 pages) doi:10.1115/1.555449 History: Received February 01, 1999
Copyright © 2000 by ASME
Your Session has timed out. Please sign back in to continue.

References

Goldstein, R. J., 1971, “Film Cooling,” Advances in Heat Transfer, 7 , Hartnett, J. P., and Irving, T. F., eds., Academic Press.
Ardey, S., and Fottner, L., 1998, “A Systematic Study of the Aerodynamics of Leading Edge Film Cooling on a Large Scale High Pressure Turbine Cascade,” ASME Paper No. 98-GT-434.
Chernobrovkin, A., and Lakshminarayana, B., “Numerical Simulation and Aerothermal Physics of Leading Edge Film Cooling,” ASME Paper No. 98-GT-504.
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.
Papell, S. S., 1984, “Vortex Generating Flow Passage Design for Increased Film-Cooling Effectiveness and Surface Coverage,” NASA Technical Memorandum 83617, prepared for National Heat Transfer Conference, Aug. 5–8.
Sinha,  A. K., Bogard,  D. G., and Crawford,  M. E., 1991, “Film-Cooling Effectiveness Downstream of a Single Row of Holes With Variable Density Ratio,” ASME J. Turbomach., 113, pp. 442–449.
Walters,  D. K., and Leylek,  J. H., 2000, “A Detailed Analysis of Film-Cooling Physics: Part I—Streamwise Injection With Cylindrical Holes,” ASME J. Turbomach., 122, pp. 102–112.
Wilfert, G., 1994, “Experimentelle und numerische Untersuchungen der Mischungsvorgänge zwischen Kühlfilmen und Gitterströmung an einem hochbelasteten Turbinenegitter,” Ph.D. Thesis, Uni-Bundeswehr München.
Vogel, D. T., Wilfert, G., and Fottner, L., 1995, “Numerical and Experimental Investigation of Film Cooling From a Row of Holes at the Suction Side of a Highly Loaded Turbine Blade,” ISABE Paper, 2 , p. 1121.
Vogel, D. T., 1998, “Numerical Investigation of the Influence of Specific Vortex Generation on the Mixing Process of Film Cooling Jets,” ASME Paper No. 98-GT-210.
Thole,  K., Gritsch,  M., Schulz,  A., and Wittig,  S., 1998, “Flowfield Measurements for Film-Cooling Holes With Expanded Exits,” ASME J. Turbomach., 120, pp. 327–336.
Thole,  K., Gritsch,  M., Schulz,  A., and Wittig,  S., 1998, “Flowfield Measurements for Film-Cooling Holes With Expanded Exits,” ASME J. Turbomach., 120, pp. 327–336.
Gritsch, M., Schulz, A., and Wittig, S., 1998, “Heat Transfer Coefficient Measurement of Film-Cooling Holes With Expanded Exits,” ASME Paper No. 98-GT-28.
Berhe, M. K., and Patankar, S. V., 1996, “A Numerical Study of Discrete-Hole Film Cooling,” ASME Paper No. WA/HAT-8.
Burd, S. W., and Simon, T. W., 1997, “The Influence of Coolant Supply Geometry on Film Coolant Exit Flow and Surface Adiabatic Effectiveness,” ASME Paper No. 97-GT-25.
Lutum,  E., and Johnson,  B. V., 1999, “Influence of the Hole Length-to-Diameter Ratio on Film Cooling With Cylindrical Holes,” ASME J. Turbomach., 121, pp. 209–216.
Wilfert,  G., and Fottner,  L., 1996, “The Aerodynamic Mixing Effect of Discrete Cooling Jets With Mainstream Flow on a Highly Loaded Turbine Blade,” ASME J. Turbomach., 118, pp. 468–478.

Figures

Grahic Jump Location
Typical interpolated film cooling effectiveness data at a low blowing rate
Grahic Jump Location
Lateral averaged film cooling effectiveness for configuration 1 (M=1.0) and Lutum (M=1.15)
Grahic Jump Location
Adiabatic film cooling effectiveness distribution for M=1, configuration 1 (L/D=8)
Grahic Jump Location
Adiabatic film cooling effectiveness distribution for M=1, configuration 4 (L/D=8, with ribs)
Grahic Jump Location
Influence of blowing rate on lateral averaged adiabatic film cooling effectiveness for configuration 1 (L/D=8)
Grahic Jump Location
Influence of blowing rate on lateral averaged adiabatic film cooling effectiveness for configuration 4 (L/D=8, with ribs)
Grahic Jump Location
Influence of guiding ribs on improvement of lateral averaged adiabatic film cooling effectiveness (M=1,L/D=8)
Grahic Jump Location
Cross section of a combined cooled turbine blade
Grahic Jump Location
Internal geometry for improved vane cooling
Grahic Jump Location
Straight channel test facility
Grahic Jump Location
Injection configurations
Grahic Jump Location
Injection configurations (P/D=4): (a) L/D=4; (b) L/D=8
Grahic Jump Location
Typical TLC contours of film cooling effectiveness values at a low blowing rate
Grahic Jump Location
Improvement of lateral averaged adiabatic film cooling effectiveness (M=1,L/D=8, with ribs) configurations (M=1,L/D=8)
Grahic Jump Location
Improvement of lateral averaged adiabatic film cooling effectiveness (M=1,L/D=4, with ribs)
Grahic Jump Location
Influence of guiding ribs on improvement of lateral averaged adiabatic film cooling effectiveness (M=1,L/D=4)
Grahic Jump Location
Sketch and photo of vortex generator setup
Grahic Jump Location
Adiabatic film cooling effectiveness distribution for M=1,L/D=4, configuration 3 with vortex generator
Grahic Jump Location
Adiabatic film cooling effectiveness distribution for M=1,L/D=4, configuration 3 with ribs
Grahic Jump Location
Improvement of lateral averaged film cooling effectiveness for configurations 3, 4, and 5 with vortex generator and configuration 3 with ribs (M=1,L/D=4)

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In