0
TECHNICAL PAPERS: Combustion and Gas Turbine Heat Transfer

Heat Transfer Coefficients on the Squealer Tip and Near Squealer Tip Regions of a Gas Turbine Blade

[+] Author and Article Information
Jae Su Kwak

Aeropropulsion Department, Korea Aerospace Research Institutee-mail: jskwak@kari.re.kr

Je-Chin Han

Turbine Heat Transfer Laboratory, Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843-3123e-mail: jchan@mengr.tamu.edu

J. Heat Transfer 125(4), 669-677 (Jul 17, 2003) (9 pages) doi:10.1115/1.1571849 History: Revised February 25, 2003; Online July 17, 2003; Received August 26, 2003
Copyright © 2003 by ASME
Your Session has timed out. Please sign back in to continue.

References

Han, J. C., Dutta, S., and Ekkad, S. V., 2000, Gas Turbine Heat Transfer and Cooling Technology, Taylor & Francis, New York
Metzger,  D. E., Bunker,  R. S., and Chyu,  M. K., 1989, “Cavity Heat Transfer on a Transverse Grooved Wall in a Narrow Flow Channel,” ASME J. Heat Transfer, 111, pp. 73–79.
Chyu,  M. K., Moon,  H. K., and Metzger,  D. E., 1989, “Heat Transfer in the Tip Region of Grooved Turbine Blades,” ASME J. Turbomach., 111, pp. 131–138.
Heyes, F. J. G., Hodson, H. P., and Dailey, G. M., 1991, “The Effect of Blade Tip Geometry on the Tip Leakage Flow in Axial Turbine Cascades,” ASME Paper No. 91-GT-135.
Yang, T. T., and Diller, T. E., 1995, “Heat Transfer and Flow for a Grooved Turbine Blade Tip in a Transonic Cascade,” ASME-95-WA/HT-29.
Ameri, A. A., Steinthorsson, E., and Rigby, L. David, 1997, “Effect of Squealer Tip on Rotor Heat Transfer and Efficiency,” ASME Paper No. 97-GT-128.
Dunn,  M. G., and Haldeman,  C. W., 2000, “Time-Averaged Heat Flux for a Recessed Tip, Lip, and Platform of a Transonic Turbine Blade,” ASME J. Turbomach., 122, pp. 692–697.
Azad,  G. M. S., Han,  J. C., Teng,  S., and Boyle,  R., 2000, “Heat Transfer and Pressure Distributions on a Gas Turbine Blade Tip,” ASME J. Turbomach., 122, pp. 717–724.
Azad,  G. M. S., Han,  J. C., and Boyle,  R., 2000, “Heat Transfer and Pressure Distributions on the Squealer Tip of a Gas Turbine Blade,” ASME J. Turbomach., 122, pp. 725–732.
Azad,  G. M. S., Han,  J. C., Bunker,  R. S., and Lee,  C. P., 2002, “Effect of Squealer Geometry Arrangement on a Gas Turbine Blade Tip Heat Transfer,” ASME J. Heat Transfer, 124, pp. 452–459.
Mayle, R. E., and Metzger, D. E., 1982, “Heat Transfer at the Tip of an Unshrouded Turbine Blade,” Proc. Seventh Int. Heat Transfer Conf., Hemisphere Pub., pp. 87–92.
Metzger,  D. E., and Rued,  K., 1989, “The Influence of Turbine Clearance Gap Leakage on Passage Velocity and Heat Transfer Near Blade Tips. Part I: Sink Flow Effects on Blade Pressure Side,” ASME J. Turbomach., 111, pp. 284–292.
Rued,  K., and Metzger,  D. E., 1989, “The Influence of Turbine Clearance Gap Leakage on Passage Velocity and Heat Transfer Near Blade Tips. Part II: Source Flow Effects on Blade Pressure Side,” ASME J. Turbomach., 111, pp. 293–300.
Metzger,  D. E., Dunn,  M. G., and Hah,  C., 1991, “Turbine Tip and Shroud Heat Transfer,” ASME J. Turbomach., 113, pp. 502–507.
Bunker,  R. S., Baily,  J. C., and Ameri,  A. A., 2000, “Heat Transfer and Flow on the First Stage Blade Tip of a Power Generation Gas Turbine: Part 1: Experimental Results,” ASME J. Turbomach., 122, pp. 272–277.
Bunker, R. S., and Baily, J. C., 2001, “Effect of Squealer Cavity Depth and Oxidation on Turbine Blade Tip Heat Transfer,” ASME Paper No. 2001-GT-0155.
Teng,  S., Han,  J. C., and Azad,  G. M. S., 2001, “Derailed Heat Transfer Coefficient Distributions on a Large-Scale Gas Turbine Blade Tip,” ASME J. Heat Transfer, 123, pp. 803–809.
Ameri, A. A., and Steinthorsson, E., 1995, “Prediction of Unshrouded Rotor Blade Tip Heat Transfer,” ASME Paper No. 95-GT-142.
Ameri, A. A., and Steinthorsson, E., 1996, “Analysis of Gas Turbine Rotor Blade Tip and Shroud Heat Transfer,” ASME Paper No. 96-GT-189.
Ameri,  A. A., Steinthorsson,  E., and Rigby,  L. David, 1999, “Effects of Tip Clearance and Casing Recess on Heat Transfer and Stage Efficiency in Axial Turbines,” ASME J. Turbomach., 121, pp. 683–693.
Ameri,  A. A., and Bunker,  R. S., 2000, “Heat Transfer and Flow on the First Stage Blade Tip of a Power Generation Gas Turbine: Part 2: Simulation Results,” ASME J. Turbomach., 122, pp. 272–277.
Ameri, A. A., and Rigby, D. L., 1999, “A Numerical Analysis of Heat Transfer and Effectiveness on Film Cooled Turbine Blade Tip Models,” NASA/CR 1999-209165.
Ameri,  A. A., 2001, “Heat Transfer and Flow on the Blade Tip of a Gas Turbine Equipped With a Mean-Camberline Strip,” ASME J. Turbomach., 123, pp. 704–708.
Rhee, D. H., Choi, J. H., and Cho, H. H., 2001, “Effect of Blade Tip Clearance on Turbine Shroud Heat/Mass Transfer,” ASME Paper No. 2001-GT-0158.
Jin, P., and Goldstein, R. J., 2002, “Local Mass/Heat Transfer on a Turbine Blade Tip,” The 9th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Honolulu, February 10–14, HT-ABS-012, pp. 1–11.
Jin, P., and Goldstein, R. J., 2002, “Local Mass/Heat Transfer on Turbine Blade Near-Tip Surfaces,” ASME Paper No. GT-2002-30556.
Papa, M., Goldstein, R. J., and Gori, F., 2002, “Effects of Tip Geometry and Tip Clearance on the Mass/Heat Transfer From a Large-Scale Gas Turbine Blade,” ASME Paper No. GT-2002-30192.
Kwak, J. S., and Han, J. C., 2003, “Heat Transfer Coefficient on a Gas Turbine Blade Tip and Near Tip Regions,” presented at the 8th AIAA/ASME Joint Thermophysics and Heat Transfer Conference, St. Louis, June, Paper No. AIAA-2002-3012; Also, AIAA J. Thermophysics and Heat Transfer, 17 (3).
Kline,  S. J., and McClintock,  F. A., 1953, “Describing Uncertainties in Single Sample Experiments,” Mech. Eng. (Am. Soc. Mech. Eng.), 75, pp. 3–8.

Figures

Grahic Jump Location
Schematic of blow-down facility
Grahic Jump Location
Definition of blade tip and shroud
Grahic Jump Location
Heat transfer measurement blade
Grahic Jump Location
Detailed view of the blade tip
Grahic Jump Location
(a) Definition of blade coordinate and location of pressure taps on the blade; and (b) Pressure distributions on the blade pressure and suction side with C=1.5 percent.
Grahic Jump Location
Pressure distribution on the shroud surface
Grahic Jump Location
(a) The relation between hue and temperature; and (b) initial temperature on the tip for C=1.5 percent.
Grahic Jump Location
Heat transfer coefficient on the blade tip
Grahic Jump Location
Conceptual view of flow near squealer tip: (a) the cavity closer to the trailing edge; and (b) the cavity closer to the leading edge
Grahic Jump Location
Heat transfer coefficient on the shroud
Grahic Jump Location
Heat transfer coefficient on the pressure side
Grahic Jump Location
Heat transfer coefficient on the suction side
Grahic Jump Location
Averaged heat transfer coefficient on the tip
Grahic Jump Location
Averaged heat transfer coefficient on the shroud
Grahic Jump Location
Averaged heat transfer coefficient on the pressure side
Grahic Jump Location
Averaged heat transfer coefficient on the suction side

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