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TECHNICAL PAPERS

Effect of Endwall Motion on Blade Tip Heat Transfer

[+] Author and Article Information
V. Srinivasan, R. J. Goldstein

Heat Transfer Laboratory, Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455

J. Turbomach 125(2), 267-273 (Apr 23, 2003) (7 pages) doi:10.1115/1.1554411 History: Received August 15, 2002; Online April 23, 2003
Copyright © 2003 by ASME
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References

Booth,  T. C., Dodge,  P. R., and Hepworth,  H. K., 1982. “Rotor-tip Leakage: Part I- Basic Methodology,” ASME J. Eng. Power, 104, pp. 154–161.
Bunker, R. S., 2001. “A Review of Turbine Blade Tip Heat Transfer,” Proceedings, International Symposium on Heat Transfer in Gas Turbine Systems, ed., R. J. Goldstein, Annals of the New York Academy of Sciences, New York, Vol. 934, pp. 64–79.
Graham,  J. A. H., 1986. “Investigation of a Tip Clearance Cascade in a Water Analogy Rig,” ASME J. Eng. Gas Turbines Power, 108, pp. 38–46.
Sjölander,  S. A., and Amrud,  K. K., 1987. “Effects of Tip Clearance on Blade Loading in a Planar Cascade of Turbine Blades,” ASME J. Turbomach, 109, pp. 237–244.
Moore,  J., and Tilton,  J. S., 1988. “Tip Leakage Flow in a Linear Turbine Cascade,” ASME J. Turbomach., 110, pp. 18–26.
Morphis, G., and Bindon, J. P., 1988. “The Effects of Relative Motion, Blade Edge Radius and Gap Size on the Blade Tip Pressure Distribution in an Annular Turbine Cascade With Clearance,” ASME Paper 88-GT-256.
Metzger,  D. E., and Rued,  K., 1989. “Influence of Turbine Clearance Gap Leakage on Passage Velocity and Heat Transfer Near Blade Tips. Part I: Sink Flow Effects on Blade Pressure Sides,” ASME J. Turbomach., 111, pp. 284–292.
Yaras,  M. I., and Sjölander,  S. A., 1992. “Effects of Simulated Rotation on Tip Leakage in a Planar Cascade of Turbine Blades: Part I—Tip Gap Flow,” ASME J. Turbomach., 114, pp. 652–659.
Yaras,  M. I., and Sjölander,  S. A., 1992. “Effects of Simulated Rotation on Tip Leakage in a Planar Cascade of Turbine Blades: Part II- Downstream Flow Field and Blade Loading,” ASME J. Turbomach., 114, pp. 660–667.
Mayle, R. E., and Metzger, D. E., 1982. “Heat Transfer at the Tip of an Unshrouded Turbine Blade,” Proc. Seventh Int. Heat Transfer Conference, 3 , pp. 87–92.
Metzger,  D. E., Dunn,  M. G., and Hah,  C., 1991. “Turbine Tip and Shroud Heat Transfer,” ASME J. Turbomach., 113, pp. 502–507.
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.
Rued,  K., and Metzger,  D. E., 1989. “Influence of Turbine Clearance Gap Leakage on Passage Velocity and Heat Transfer Near Blade Tips. Part II: Source Flow Effects on Blade Suction Sides,” ASME J. Turbomach., 111, pp. 293–300.
Kim,  Y. W., Downs,  J. P., Soechting,  F. O., Abdel-Messeh,  W., Steuber,  G. D., and Tanrikut,  S., 1995. “A Summary of the Cooled Turbine-Blade Tip Heat Transfer and Film Cooling Effectiveness Investigations Performed by Dr. D. E. Metzger,” ASME J. Turbomach., 117, pp. 1–11.
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Figures

Grahic Jump Location
Cascade coordinates and parameters
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Schematic diagram of the moving wall apparatus
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Part drawing of tip surface of hollow blade with location of pressure taps
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Blade loading near the tip at z/C=0.12 for t/C=0.6%
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Pressure profile on tip for t/C=0.6, 0.86%
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Coordinate system used for measurement
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Contour plot of Sh for t/C=0.6%,EES=0
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(a) Sh on fore half of blade, t/C=0.6%; (b) Sh on aft half of blade, t/C=0.6%
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(a) Sh on fore half of blade, t/C=0.86%; (b) aft half of blade, t/C=0.86%
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(a) Fore half of blade, t/C=1.72%; (b) aft half of blade, t/C=1.72%
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Oil-lampblack flow visualization on tip

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