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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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References

Bhatti, M. S., and Shah, R. K., 1987, “Turbulent and Transition Flow Convective Heat Transfer in Ducts,” Handbook of Single-Phase Convective Heat Transfer, Kakac, Shah, and Aung, eds., John Wiley & Son, New York, pp. 4.1–4.166.
Shah, R. K., and Bhatti, M. S., 1987, “Laminar Convective Heat Transfer in Ducts,” Handbook of Single-Phase Convective Heat Transfer, Kakac, Shah and Aung, eds., John Wiley & Son, New York, pp. 3.1–3.3
Hartnett, J. P., and Kostic, M., 1989, “Heat Transfer to Newtonian and Non-Newtonian Fluids in Rectangular Ducts,” Advances in Heat Transfer, 19 , Academic Press, San Diego, pp. 247–356.
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Shah, R. K., and London, A. L., 1978, “Laminar Flow Forced Convection in Ducts,” Supplement 1 to Advances in Heat Transfer, Academic Press, New York.
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Mercer,  W. E., Pearce,  W. C., and Hitchcock,  J. E., 1967, “Laminar Forced Convection in the Entrance Region Between Parallel Flat Plates,” ASME J. Heat Transfer, 89, pp. 251–257.
Baek, B. J., Palaski, D. A., Armaly, B. F., and Chen, T. S., 1990, “Mixed Convection in an Asymmetrically Heated Vertical Parallel-Plated Duct Flow,” Proceedings of the 9th Intl. Heat Transfer Conference, 4 , Jerusalem, Israel, pp. 369–374.
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Figures

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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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