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TECHNICAL PAPERS

Evaluation of Pressure Side Film Cooling With Flow and Thermal Field Measurements—Part I: Showerhead Effects

[+] Author and Article Information
J. Michael Cutbirth

William B. Morgan Large Cavitation Channel, Naval Surface Warfare Center, Carderock Division, Memphis, TN 38113

David G. Bogard

Mechanical Engineering Department, University of Texas at Austin, Austin, TX 78712

J. Turbomach 124(4), 670-677 (Nov 07, 2002) (8 pages) doi:10.1115/1.1504441 History: Received November 02, 2001; Online November 07, 2002
Copyright © 2002 by ASME
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References

Figures

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Turbine vane test section
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Film-cooling hole configuration and location of measurement plane
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Flow visualization of the showerhead film cooling with z/p=7.5 and Msh*=1.5
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Flow visualization of the upstream flow field for the pressure side film cooling with Ips=0.0 and Msh*=1.5
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Thermal profile of the showerhead coolant flow immediately upstream of the pressure side coolant row with Msh*=1.5 and x/d=−22
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Showerhead (a) mean and (b) rms profiles at x/d=−9 and −28 with Msh*=1.5
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Comparison of upstream coolant conditions for (a) Ips=0.0 and Msh*=1.5, (b) Ips=0.2 and Msh*=0.0, and (c) Ips=0.2 and Msh*=1.5
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Laterally averaged effectiveness for the pressure side film cooling for (a) Msh*=0.0, and (b) Msh*=1.5
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Lateral distribution of effectiveness for the combined coolant flow and predicted superposition at x/d=−28, and (a) Ips=0.2, and (b) Ips=1.2
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Flow visualization of the pressure side film cooling with and without showerhead flow
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Thermal profile of the pressure side coolant jet with Tu=0.5%, and x/d=−28 with Msh*=0.0 for (a) Ips=0.2, (b) Ips=1.2, and Msh*=1.5 for (c) Ips=0.2, and (d) Ips=1.2
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V-W velocity vectors representing the velocity field for the pressure side film cooling (PS3) at x/d=−28 for (a) Msh*=0.0,Ips=1.2, and Msh*=1.5,Ips=1.2 for (b) actual flow, and (c) embedded structure
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Turbulence levels of the pressure side film cooling with Ips=1.2 and x/d=−28 for (a) Msh*=0.0, and (b) Msh*=1.5

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