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TECHNICAL PAPERS

Unsteady Wake Effect on Film Temperature and Effectiveness Distributions for a Gas Turbine Blade

[+] Author and Article Information
Shuye Teng, Dong Kee Sohn, Je-Chin Han

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

J. Turbomach 122(2), 340-347 (Feb 01, 1999) (8 pages) doi:10.1115/1.555457 History: Received February 01, 1999
Copyright © 2000 by ASME
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References

Figures

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Effect of blowing ratio on film temperature field (S=0,X/D=10)
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Effect of unsteady wake and blowing ratio on detailed film cooling effectiveness distribution
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Film cooling effectiveness distribution: (a) along film hole centerline; (b) spanwise-averaged
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Detailed Nusselt number distribution for cases at different blowing ratios, with and without wake effect
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Spanwise-averaged Nusselt number distribution for: (a) steady flow; (b) unsteady flow with wake effect
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(a) Five-blade cascade with center blade coated with liquid crystal and viewed by two cameras; (b) a two-dimensional view of the film-cooled blade model
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Measurement planes at selected locations with a cold-wire probe
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Film temperature field at different locations for the case of M=0.8 and without wake effect (S=0)
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Film temperature field at different locations for the case of M=0.8 and with wake effect (S=0.1)
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Detailed film temperature contour at X/D=10 for the cases of M=0.8, without and with wake effect

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