TECHNICAL PAPERS: Forced Convection

Convective Heat Transfer in Vertical Asymmetrically Heated Narrow Channels

[+] Author and Article Information
Yun Chin, Muthu S. Lakshminarasimhan, Qing Lu, D. Keith Hollingsworth, Larry C. Witte

Heat Transfer & Phase Change Laboratory, Dept. of Mech. Engineering, University of Houston, Houston, TX 77204-4792

J. Heat Transfer 124(6), 1019-1025 (Dec 03, 2002) (7 pages) doi:10.1115/1.1497356 History: Received July 24, 2001; Revised May 28, 2002; Online December 03, 2002
Copyright © 2002 by ASME
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Cross-section views of the channel: (a) longitudinal, and (b) transverse with construction detail. For (b) the gravity vector is pointing out of the page.
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Schematic of experiment apparatus
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Wall and bulk temperatures for Re=6.0×104,H=2 mm
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Examples of liquid crystal images and associated temperature measurements along the centerline of the channel
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Local Nux for simultaneously developing turbulent flow for Re=4.6×104,H=2 mm
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Local Nux for three values of Re, H=2 mm
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Comparison of Nux for simultaneously developing turbulent flow in a rectangular channel, H=2 mm
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Nusselt numbers compared to the correlation of Tan and Charters for fully developed turbulent flow
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Nusselt number evolution for H=2.0, 1.0, and 0.5 mm
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Replica of Metais’ figure showing the regimes for narrow channel data



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