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TECHNICAL PAPERS

Experimental and Numerical Investigation of Impingement on a Rib-Roughened Leading-Edge Wall

[+] Author and Article Information
M. E. Taslim, K. Bakhtari, H. Liu

Mechanical, Industrial, and Manufacturing Engineering Department, Northeastern University, Boston, MA 02115

J. Turbomach 125(4), 682-691 (Dec 01, 2003) (10 pages) doi:10.1115/1.1624848 History: Received December 01, 2002; Revised March 01, 2003; Online December 01, 2003
Copyright © 2003 by ASME
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References

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Figures

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Schematic of the test apparatus
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Target surface and crossover hole geometries
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Mesh arrangement on target and outer walls
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Typical mesh arrangement around the computational domain periphery
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Inflow and outflow arrangements
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Percentage of air flow rate through each crossover hole for all flow arrangements
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Nusselt number variation with Reynolds number for the smooth surface (baseline) target geometry
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Comparison between the heat transfer results of channel and impingement flows
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Nusselt number variation with Reynolds number for the horseshoe-roughened target surface geometry
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Nusselt number variation with Reynolds number for the notched-horseshoe target surface geometry
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Comparison between the heat transfer results of all target surface geometries
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Comparison between the heat transfer results of all target surface geometries for the two inflow arrangements
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Comparison between the area-augmented heat transfer results of all target surface geometries
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Comparison between the pressure ratios across the crossover holes for all target surface geometries
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Comparison between the experimental and numerical heat transfer results for all target surface geometries
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Representative velocity vectors near the symmetry plane
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Representative heat transfer coefficient variation on the heated surface
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Representative temperature variation on the heated surface

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