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TECHNICAL PAPERS: Gas Turbine Heat Transfer

Effect of Squealer Geometry Arrangement on a Gas Turbine Blade Tip Heat Transfer

[+] Author and Article Information
Gm Salam Azad, Je-Chin Han

Department of Mechanical Engineering, Turbine Heat Transfer Lab, Texas A&M University, College Station, TX 77843-3123

Ronald S. Bunker

GE R&D Center, Schenectady, NY 12301

C. Pang Lee

GE Aircraft Engines, Cincinnati, OH 45215

J. Heat Transfer 124(3), 452-459 (May 10, 2002) (8 pages) doi:10.1115/1.1471523 History: Received April 19, 2001; Revised January 29, 2002; Online May 10, 2002
Copyright © 2002 by ASME
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References

Figures

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A conceptual view of blade tip leakage flow
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Test section with 5-bladed cascade
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Removable squealer tip-various one-sided squealer geometry
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Removable squealer tip-various two-sided squealer geometry
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Pressure tap locations on shroud surface
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Heater arrangements on a sample heat transfer blade
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Shroud pressure distributions—one-sided squealer
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Shroud pressure distributions—two-sided squealer
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Local heat transfer coefficient distributions—one-sided squealer (Full color in on-line version of the journal)
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Local heat transfer coefficient distributions—two-sided squealer (Full color in on-line version of the journal)
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Averaged heat transfer coefficient—one-sided squealer
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Averaged heat transfer coefficient—two-sided squealer

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