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TECHNICAL PAPERS

High-Resolution Measurements of Local Heat Transfer Coefficients From Discrete Hole Film Cooling

[+] Author and Article Information
S. Baldauf, A. Schulz, S. Wittig

Lehrstuhl und Institut für Thermische Strömungsmaschinen, Universität Karlsruhe (TH), 76128 Karlsruhe, Germany

J. Turbomach 123(4), 749-757 (Feb 01, 1999) (9 pages) doi:10.1115/1.1387245 History: Received February 01, 1999
Copyright © 2001 by ASME
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References

Figures

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Extended hot wind tunnel scheme with cooling circuit
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Test section for heat transfer measurements
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FE model of the test plate, a=60 deg,s/D=3
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Local hf resulting from a set of surface heat transfer measurements at varying dimensionless wall temperature conditions
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Local heat transfer coefficient distributions for typical application conditions
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Characteristic heat transfer patterns for typical application conditions at high density ratios
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Effect of the blowing angle on local heat transfer coefficient distributions
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Effect of the hole spacing on local heat transfer coefficient distributions
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Effect of the density ratio on the local heat transfer coefficient distributions
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Spatially averaged net heat flux reduction

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