0
TECHNICAL PAPERS

Scaling of Performance for Varying Density Ratio Coolants on an Airfoil With Strong Curvature and Pressure Gradient Effects

[+] Author and Article Information
Marcia I. Ethridge, J. Michael Cutbirth, David G. Bogard

Mechanical Engineering Department, The University of Texas at Austin, Austin, TX 78712

J. Turbomach 123(2), 231-237 (Feb 01, 2000) (7 pages) doi:10.1115/1.1343457 History: Received February 01, 2000
Copyright © 2001 by ASME
Your Session has timed out. Please sign back in to continue.

References

Ames,  F. E., 1998, “Aspects of Vane Film Cooling With High Turbulence: Part II—Adiabatic Effectiveness,” ASME J. Turbomach., 120, pp. 777–784.
Mehendale,  A. B., Han,  J.-C., Ou,  S., and Lee,  C. P., 1994, “Unsteady Wake Over a Linear Turbine Blade Cascade With Air and CO2 Film Injection: Part II—Effect on Film Effectiveness and Heat Transfer Distributions,” ASME J. Turbomach., 116, pp. 730–737.
Lander,  R. L., Fish,  R. W., and Suo,  M., 1972, “External Heat-Transfer Distribution on Film Cooled Vanes,” J. Aircr., 9, pp. 707–714.
Ito,  S., Goldstein,  R. J., and Eckert,  E. R. G., 1978, “Film Cooling of a Gas Turbine Blade,” ASME J. Eng. Power, 113, pp. 476–481.
Drost,  U., and Bölcs,  A., 1999, “Investigation of Detailed Film Cooling Effectiveness and Heat Transfer Distributions on a Gas Turbine Airfoil,” ASME J. Turbomach., 121, pp. 233–242.
Abuaf,  N., Bunker,  R., and Lee,  C. P., 1997, “Heat Transfer and Film Cooling Effectiveness in a Linear Airfoil Cascade,” ASME J. Turbomach., 119, pp. 302–309.
Drost, U., and Bölcs, A., 1999, “Performance of a Turbine Airfoil With Multiple Film Cooling Stations—Part 1: Heat Transfer and Film Cooling Effectiveness,” ASME Paper No. 99-GT-171.
Schmidt, D. L., and Bogard, D. G., 1995, “Pressure Gradient Effects on Film Cooling,” ASME Paper No. 95-GT-18.
Teekaram,  A. J. H., Forth,  C. J. P., and Jones,  T. V., 1991, “Film Cooling in the Presence of Mainstream Pressure Gradients,” ASME J. Turbomach., 113, pp. 484–492.
Goldstein, R. J., and Stone, L. D., 1994, “Row-of-Holes Film Cooling of a Convex and a Concave Wall at Low Injection Angles,” Heat Transfer in Gas Turbines, ASME HTD-Vol. 300, pp. 15–29.
Schwarz,  S. G., Goldstein,  R. J., and Eckert,  E. R. G., 1990, “The Influence of Curvature on Film Cooling Performance,” ASME J. Turbomach., 113, pp. 472–478.
Campbell, R. P., and Moffat, R. J., 1994, “Discrete Hole Film Cooling on a Convex Wall: Heat Transfer and Hydrodynamics With Free Stream Turbulence,” in: Heat Transfer in Gas Turbines, ASME HTD-Vol. 300, pp. 45–33 [sic].
Radomsky, R. W., and Thole, K. A., 1998, “Effects of High Freestream Turbulence Levels and Length Scales on Stator Vane Heat Transfer,” ASME Paper No. 98-GT-236.
Polanka, M. D., Cutbirth, J. M., and Bogard, D. G., 1999, “Turbine Vane Facility,” University of Texas Report TTCRL 99-1.
Witteveld, V. C., Polanka, M. D., and Bogard, D. G., 1999, “Film Cooling Effectiveness in the Showerhead Region of a Gas Turbine Vane—Part II: Stagnation Region and Near-Suction Side,” ASME Paper No. 99-GT-49.
Polanka, M. D., Witteveld, V. C., and Bogard, D. G., 1999, “Film Cooling Effectiveness in the Showerhead Region of a Gas Turbine Vane—Part I: Stagnation Region and Near-Pressure Side,” ASME Paper No. 99-GT-48.
Polanka, M. D., Ethridge, M. I., Cutbirth, J. M., and Bogard, D. B., 2000, “Effects of Showerhead Injection on Film Cooling Effectiveness of Downstream Rows of Holes,” ASME Paper No. 2000-GT-240.
Radomsky, R. W., 2000, “High Freestream Turbulence Studies on a Scaled-Up Turbine Vane,” Ph.D. Dissertation, The University of Wisconsin at Madison.
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.
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.
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.
Radomsky,  R. W., and Thole,  K. A., 2000, “Flowfield Measurements for a Highly Turbulent Flow in a Stator Vane Passage,” ASME J. Turbomach., 122, pp. 255–262.
Schmidt, D. L., and Bogard, D. G., 1996, “Effects of Free-Stream Turbulence and Surface Roughness on Film Cooling,” ASME Paper No. 96-GT-462.
Drost, U., Bölcs, A., and Hoffs, A., 1997, “Utilization of the Transient Liquid Crystal Technique for Film Cooling Effectiveness and Heat Transfer Investigations on a Flat Plate and a Turbine Airfoil,” ASME Paper No. 97-GT-26.

Figures

Grahic Jump Location
Turbine vane pressure distribution
Grahic Jump Location
Lateral average effectiveness, Tu=0.5 percent,DR=1.1
Grahic Jump Location
Lateral average effectiveness, Tu=0.5 percent,DR=1.6
Grahic Jump Location
Comparison of laterally averaged effectiveness with previous flat plate and curved wall studies at x/d=15 and Tu=0.5 percent
Grahic Jump Location
Correlation of centerline effectiveness with: (a) M and (b) I, and laterally averaged effectiveness with (c) M and (d) I, for DR=1.1 and 1.6; Comparisons at x/d=3 and 15 with Tu=0.5 percent
Grahic Jump Location
Contour plots of local adiabatic effectiveness: (a) DR=1.1,M=0.45(I=0.19),Tu=0.5 percent; (b) DR=1.6,M=0.44(I=0.12),Tu=0.5 percent
Grahic Jump Location
Comparison of adiabatic effectiveness for low (Tu=0.5 percent) and high (Tu=20 percent) mainstream turbulence levels at x/d=3 and 15: (a) and (b) for DR=1.1, and (c) and (d) DR=1.6

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