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TECHNICAL PAPERS

Effect of Crossflows on the Discharge Coefficient of Film Cooling Holes With Varying Angles of Inclination and Orientation

[+] Author and Article Information
Michael Gritsch

ALSTOM Power, Gas Turbine Base Development, 5405 Baden-Dättwil, Switzerland

Achmed Schulz, Sigmar Wittig

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

J. Turbomach 123(4), 781-787 (Feb 01, 2001) (7 pages) doi:10.1115/1.1397306 History: Received February 01, 2001
Copyright © 2001 by ASME
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References

Figures

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Film-cooling test section
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Definition of inclination and orientation angles
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Discharge coefficients of holes with varying inclination angles (α=30, 45, and 90 deg) and fixed orientation angle (γ=0 deg)
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Effect of internal crossflow for holes with different inclination angles: (a) α=30 deg, (b) α=45 deg, (c) α=90 deg
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Discharge coefficients of holes with varying orientation angles (γ=0, 45, and 90 deg) and fixed inclination angle (α=30 deg)
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Effect of internal crossflow for holes with different orientation angles: (a) γ=0 deg, (b) γ=45 deg, (c) γ=90 deg
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Normalized discharge coefficient for holes with different inclination angles: (a) effect of external crossflow, (b) effect of internal crossflow
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Normalized discharge coefficient for holes with different orientation angles: (a) effect of external crossflow, (b) effect of internal crossflow

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