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TECHNICAL PAPERS

Time-Averaged Heat Flux for a Recessed Tip, Lip, and Platform of a Transonic Turbine Blade

[+] Author and Article Information
M. G. Dunn, C. W. Haldeman

The Ohio State University Gas Turbine Laboratory, Columbus, OH 43235

J. Turbomach 122(4), 692-698 (Feb 01, 2000) (7 pages) doi:10.1115/1.1311285 History: Received February 01, 2000
Copyright © 2000 by ASME
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References

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Metzger,  D. E., and Rued,  K., 1989, “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,” ASME J. Turbomach., 111, pp. 293–300.
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.
Wadia,  A. R., and Booth,  T. C., 1982, “Rotor Tip Leakage: Part 2—Design Optimization Through Viscous Analysis and Experiment,” ASME J. Eng. Power, 104, pp. 162–169.
Sjolander,  S. A., and Cao,  D., 1995, “Measurement of the Flow in an Idealized Turbine Tip Gap,” ASME J. Turbomach., 117, pp. 578–584.
Yaras,  M. I., Sjolander,  S. A., and Kind,  R. J., 1992, “Effects of Simulated Rotation on Tip Leakage in a Planar Cascade of Turbine Blades,” ASME J. Turbomach., 114, pp. 652–659.
Mayle, R. E., and Metzger, D. E., 1982, “Heat Transfer at the Tip of an Unshrouded Turbine Blade,” Proc. 7th International Heat Transfer Conference, 3 , pp. 87–92.
Heyes,  F. J. G., and Hodson,  H. P., 1993, “Measurement and Prediction of Tip Clearance Flow in Linear Turbine Cascades,” ASME J. Turbomach., 115, pp. 376–382.
Ameri,  A. A., Steinthorsson,  E., and Rigby,  D. L., 1998, “Effect of Squealer Tip on Rotor Heat Transfer and Efficiency,” ASME J. Turbomach., 120, pp. 753–759.
Bindon, J. P., 1986, “Pressure and Flowfield Measurements of Axial Turbine Tip Clearance Flow in a Linear Cascade,” Cambridge University Engineering Department, TR 123.
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Chyu,  M. K., Metzger,  D. E., and Hwan,  C. L., 1987, “Heat Transfer in Shrouded Rectangular Cavities,” J. of Thermophysics, 1, No. 3, pp. 247–252.
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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.
Bunker, R. S., Bailey, J. C., and Ameri, A. A., 1999, “Heat Transfer and Flow on the First Stage Blade Tip of a Power Generation Gas Turbine, Part 1: Experimental Results,” NASA TM 1999-209152.
Ameri,  Ali 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.
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Dunn,  M. G., Kim,  J., Civinskas,  K. C., and Boyle,  R. J., 1994, “Time-Averaged Heat Transfer and Pressure Measurements and Comparison With Prediction for a Two-Stage Turbine,” ASME J. Turbomach., 116, pp. 14–22.
Venable,  B. L., Delaney,  R. A., Busby,  J. A., Davis,  R. L., Dorney,  D. J., Dunn,  M. G., Haldeman,  C. W., and Abhari,  R. S., 1999, “Influence of Vane-Blade Spacing on Transonic Turbine Stage Aerodynamics, Part I: Time-Averaged Data and Analysis,” ASME J. Turbomach., 121, pp. 663–672.
Busby,  J. A., Davis,  R. L., Dorney,  D. J., Dunn,  M. G., Haldeman,  C. W., Abhari,  R. S., Venable,  B. L., and Delaney,  R. A., 1999, “Influence of Vane-Blade Spacing on Transonic Turbine Stage Aerodynamics, Part II: Time-Resolved Data and Analysis,” ASME J. Turbomach., 121, pp. 673–682.
Dunn,  M. G., Haldeman,  C. W., Abhari,  R. S., and McMillan,  M. L., 2000, “Influence of Vane/Blade Spacing on the Heat Flux for a Transonic Turbine,” ASME J. Turbomach., 122, this issue, pp. 684–691.
Kim, J., Ross, R. A., and Dunn, M. G., 1996, “Numerical Investigation of the Heat-Island Effect for Button-Type, Transient, Heat Flux Gage Measurements,” Proc 31st National Heat Transfer Conference, ASME HTD-Vol. 5, pp. 33–39.
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Zilles, D. A., and Abhari, R. S., 1999, “Influence of Non-Isothermal Button Gage Surface Temperature in Heat Flux Measurement Applications,” Proc. IMECE99, Nashville, TN.

Figures

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Sketch of Allison VBI model in OSU GTL shock tunnel
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Instrumented rotor of VBI turbine
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Photograph of cavity and lip heat-flux gages
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Photograph of platform heat-flux gages
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Time-averaged Nusselt number for rotor blade (50 percent span) versus vane/blade spacing
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Nusselt number on blade tip cavity
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FFT’s of heat-flux gage temperature data: 60 percent vane/blade spacing
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Nusselt number on blade tip
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FFT’s of heat-flux gage temperature data: 60 percent vane/blade spacing
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Nusselt number on blade platform
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FFT’s of heat-flux gage temperature data: 60 percent vane/blade
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Nusselt number on blade suction surface (90 percent span)
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FFT’s of heat-flux gage temperature data: 60 percent vane/blade

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