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TECHNICAL PAPERS

A Method for Correlating the Influence of External Crossflow on the Discharge Coefficients of Film Cooling Holes

[+] Author and Article Information
D. A. Rowbury

Rolls-Royce plc, Bristol, UK

M. L. G. Oldfield

Department of Engineering Science, University of Oxford, Oxford, UK

G. D. Lock

Department of Mechanical Engineering, University of Bath, Bath, UK

J. Turbomach 123(2), 258-265 (Feb 01, 2000) (8 pages) doi:10.1115/1.1354137 History: Received February 01, 2000
Copyright © 2001 by ASME
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References

Figures

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Schematic diagram of the CHTT
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Vane cross-section, illustrating the “regions” referred to in the declaration of coefficients for the “δout=Akout,⊥−B−C” relationships (Table 2)
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Definition of film cooling hole angles
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δout vs. kout for CHTT row 1 as cylindrical holes
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Comparison between with-crossflow measurements and additive loss coefficient predictions for CHTT row 1 as cylindrical film cooling holes
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Rig measurements and “generalized” predictions for row 1 as cylindrical film cooling holes
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Rig measurements and “generalized” predictions for row 10 (cylindrical film cooling holes)
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Rig measurements and “generalized” predictions for row 14 as fan-shaped film cooling holes
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Comparison between Karlsruhe experimental data for an inclined 30 deg cylindrical film cooling hole and predictions using the proposed methodology

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