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TECHNICAL PAPERS

Heat Transfer and Flow on the First-Stage Blade Tip of a Power Generation Gas Turbine: Part 1—Experimental Results

[+] Author and Article Information
Ronald S. Bunker, Jeremy C. Bailey

General Electric Corp. R&D Center, Schenectady, NY 12309

Ali A. Ameri

AYT Corporation, Brook Park, OH 44135

J. Turbomach 122(2), 263-271 (Feb 01, 1999) (9 pages) doi:10.1115/1.555443 History: Received February 01, 1999
Copyright © 2000 by ASME
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References

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Figures

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Blade tip cascade facility
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Airfoil and shroud definition
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Airfoil near-tip pressure distributions
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Heat transfer blade tip construction
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Shroud surface pressure distribution with sharp-edge blade tip and clearance of 2.03 mm
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Blade tip surface pressure distribution with sharp-edge tip and variable clearance
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Blade tip surface pressure distribution with radius-edge tip and variable clearance
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Sharp edge blade tip heat transfer coefficients (W/m2/K) for clearance of 2.03 mm and Tu=5 percent
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Sharp edge blade tip heat transfer coefficients (W/m2/K) for clearance of 2.03 mm and Tu=9 percent
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Comparison of selected tip data with pipe entry region data of Boelter et al. 26 and tip model data of Metzger et al. 9
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Radius edge blade tip heat transfer coefficients (W/m2/K) for clearance of 2.03 mm and Tu=5 percent
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Radius edge blade tip heat transfer coefficients (W/m2/K) for clearance of 2.03 mm and Tu=9 percent
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Radius edge blade tip heat transfer coefficients (W/m2/K) for clearance of 1.27 mm and Tu=9 percent
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Radius edge blade tip heat transfer coefficients (W/m2/K) for clearance of 2.79 mm and Tu=9 percent

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