Axial turbine blade tips: Function, design, and durability

Journal of Propulsion and Power

Volumn 22, Issue 2, 2006, Pages 271-285

  Bunker, Ronald S ^a,b,c,d  

^a GE GLOBAL RESEARCH   (United States)

^b GRC Gas Turbine Heat Transfer   (United States)

^c ASME   (United States)

^d Heat Transfer Committee   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AERODYNAMICS; AIRCRAFT ENGINES; DURABILITY; GAS TURBINES; HEAT TRANSFER; MACHINE DESIGN;

LOW-PRESSURE TURBINES; POWER GENERATING TURBINE SYSTEMS; TURBINE BLADES;

TURBOMACHINE BLADES;

EID: 33645772973     PISSN: 07484658     EISSN: 15333876     Source Type: Journal    
DOI: 10.2514/1.11818     Document Type: Review

References (20)

1. Glezer, B., Harvey, N., Camci, C., Bunker, R., and Ameri, A., Turbine Blade Tip Design and Tip Clearance Treatment, edited by T. Arts, VLI LS 2004-02, Von Kármán Inst. Lecture Series, Brussels, 2004.
2. Fowler, T. W. (ed.), Jet Engines and Propulsion Systems for Engineers, General Electric Aircraft Engines, Cincinnati, OH, 1989.
3. Booth, T. C., "Importance of Tip Clearance Flows in Turbine Design," Tip Clearance Effects in Axial Turbomachines, VKI LS 1985-05, Von Kármán Inst. Lecture Series, Brussels, 1985.
4. Bindon, J. P., "Pressure Distributions in the Tip Clearance Region of an Unshrouded Axial Turbine as Affecting the Problem of Tip Burnout," International Gas Turbine Conference, American Society of Mechanical Engineers, New York; also Paper 87-GT-230, June 1987.
5. Yamamoto, A., "Endwall Flow/Loss Mechanisms in a Linear Turbine Cascade with Blade Tip Clearance," Journal of Turbomachinery, Vol. 111, No. 2, 1989, pp. 264-275.
6. Morphis, G., and Bindon. J. P., "The Effects of Relative Motion, Blade Edge Radius and Gap Size on the Blade Tip Pressure Distribution in an Annular Turbine Cascade," International Gas Turbine Conference, American Society of Mechanical Engineers, New York; also Paper 88-GT-256, June 1988.
7. Ameri, A. A., and Steinthorrson, E., "Prediction of Unshrouded Rotor Blade Tip Heat Transfer," International Gas Turbine Conference, American Society of Mechanical Engineers, New York; also Paper 95-GT-142, June 1995.
8. Bindon, J. P., "The Measurement and Formation of Tip Clearance Loss," Journal of Turbomachinery, Vol. 111, No. 2, 1989, pp. 257-263.
9. Ameri, A. A., Steinthorsson, E., and Rigby, D. L., "Effect of Squealer Tip on Rotor Heat Transfer and Efficiency," Journal of Turbomachinery, Vol. 120, No. 4, 1997, pp. 753-759.
10. Bunker, R. S., Bailey, J. C., and Ameri, A. A., "Heat Transfer and Flow on the First Stage Blade Tip of a Power Generation Gas Turbine Part 1: Experimental Results," Journal of Turbomachinery, Vol. 122, No. 2, 1999, pp. 263-271.
11. Bunker, R. S., and Bailey, J. C., "Blade Tip Heat Transfer and Flow with Chordwise Sealing Strips," Proceedings of the 8th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Pacific Center of Thermal-Fluids Engineering, Kihei, Maui, 2000, pp. 548-555.
12. Kwak, J. S., Ahn, J., Han, J. C., Bunker, R. S., Lee, C. P., Boyle, R., and Gaugier, R., "Heat Transfer Coefficients on the Squealer Tip and Near-Tip Regions of a Gas Turbine Blade with Single or Double Squealer," American Society of Mechanical Engineers, Paper GT2003-38907, June 2003.
13. Metzger, D. E., Bunker, R. S., and Chyu, M. K., "Cavity Heat Transfer on a Transverse Grooved Wall in a Narrow Flow Channel," Journal of Heat Transfer, Vol. 111, No. 1, 1989, pp. 73-79.
14. Metzger, D. E., and Rued, K., "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," Journal of Turbomachinery, Vol. 111, No. 2, 1989, pp. 284-292.
15. Rued, K., and Metzger, D. E., "The Influence of Turbine Clearance Gap Leakage on Passage Velocity and Heat Transfer Near Blade Tips: Part II-Source Flow Effects on Blade Suction Sides," Journal of Turbomachinery, Vol. 111, No. 2, 1989, pp. 293-300.
16. Kwak, J. S., and Han, J. C., "Heat Transfer Coefficient and Film Cooling Effectiveness on a Gas Turbine Blade Tip," American Society of Mechanical Engineers, Paper 2002-GT-30194, June 2002.
17. Nirmalan, N. V., Bailey, J. C., and Braaten, M. E., "Experimental and Computational Investigation of Heat Transfer Effectiveness and Pressure Distribution of a Shrouded Blade Tip Section," American Society of Mechanical Engineers, Paper GT2004-53279, June 2004.
18. Hartley, R., "High Pressure Turbine Tip Clearance Performance Investigation," M.Sc. Thesis, Cranfield Univ., Cranfield, England, U.K., March 1996.
19. Corman, G. S., Dean, A. J., Brabetz, S., Brun, M. K., Luthra, K. L., Tognarelli, L., and Pecchioli, M., "Rig and Engine Testing of Melt Infiltrated Ceramic Composites for Combustor and Shroud Applications," American Society of Mechanical Engineers, Paper 2000-GT-638, May 2002.
20. Bunker, R. S., and Bailey, J. C., "Effect of Squealer Cavity Depth and Oxidation on Turbine Blade Tip Heat Transfer," American Society of Mechanical Engineers, Paper 2001-GT-155, June 2001.