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TECHNICAL PAPERS

Lateral-Flow Effect on Endwall Heat Transfer and Pressure Drop in a Pin-Fin Trapezoidal Duct of Various Pin Shapes

[+] Author and Article Information
Jenn-Jiang Hwang, Chau-Ching Lu

Department of Mechanical Engineering, Chung-Hua University, Hsinchu, Taiwan 300

J. Turbomach 123(1), 133-139 (Feb 01, 2000) (7 pages) doi:10.1115/1.1333093 History: Received February 01, 2000
Copyright © 2001 by ASME
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References

Figures

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Typical modern internally cooled turbine blade and the modeled pin-fin trapezoidal duct
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Sketch of the experimental apparatus
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Dimensions and coordinate system of the test section
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Comparison of the averaged Nusselt number and friction factor of the present smooth trapezoidal duct with the previous correlations
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Detailed heat transfer coefficient distribution on the endwall of the trapezoidal duct: effect of the lateral-flow rate, Re=40,000
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Detailed heat transfer coefficient distribution on the endwall of the trapezoidal duct: effect of the pin shapes, Re=40,000
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Relation of the lateral-flow rate and the main flow direction in the trapezoidal duct
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Effect of the lateral-flow rate on the endwall averaged Nusselt number for Re=40,000
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Endwall-averaged Nusselt number as a function of the Reynolds number
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Reynolds-number dependence of Euler number for the trapezoidal duct of the square pins

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