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TECHNICAL PAPERS: Jets, Wakes, and Impingement Cooling

Heat Transfer in a High Turbulence Air Jet Impinging Over a Flat Circular Disk

[+] Author and Article Information
Erick A. Siba

Dell Corp., One Dellway, Roundrock, TX 78682

M. Ganesa-Pillai

5505 Stonehenge Drive, Richardson, TX 75082

Kendall T. Harris, A. Haji-Sheikh

Department of Mechanical and Aerospace Engineering, The University of Texas at Arlington, Arlington, TX 76019-0023

J. Heat Transfer 125(2), 257-265 (Mar 21, 2003) (9 pages) doi:10.1115/1.1469523 History: Received March 28, 2000; Revised November 02, 2001; Online March 21, 2003
Copyright © 2003 by ASME
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References

Figures

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Schematic of the 304 stainless steel geometry and boundary conditions
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Schematic of flow developing from a nozzle and impinging on a surface
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The ū and u profiles at r/D=7.95 for ReD=16,100 and ReD=29,600
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The ū and u profiles at r/D=5.68 and for ReD=23,700 and ReD=29,600
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Variation of umax as a function of r/D for three Reynolds numbers
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Measured Tu as a function of r/D for three Reynolds numbers
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Surface temperatures at different r/D locations for ReD=23,700
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Surface heat flux at different r/D locations for ReD=23,700
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Comparison of measured and recalculated temperatures at different thermocouple locations at ReD=23,700
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Surface heat flux at different r/D locations for ReD=23,700
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Heat transfer coefficient as a function of r/D for three ReD values
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Turbulent heat transfer coefficient as a function of u at the stagnation region
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Heat transfer coefficient as a function of r/D for ReD=23,700 in the wall-jet region
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Variation of h,hlam, and htur as functions of r/D at: (a) ReD=16,100, (b) ReD=23,700, and (c) ReD=29,600
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Variation of htur as a function of u in the wall-jet region for ReD=16,100, 23,700, and 29,600, and comparison with Al-Salam et al. 12
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A comparison between Maciewjewski and Moffat 11 correlation and the data from present study

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