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TECHNICAL PAPERS: Natural and Mixed Convection

Stabilization of Buoyancy-Driven Unstable Vortex Flow in Mixed Convection of Air in a Rectangular Duct by Tapering Its Top Plate

[+] Author and Article Information
W. S. Tseng, W. L. Lin, C. P. Yin, C. L. Lin, T. F. Lin

Department of Mechanical Engineering, National Chiao Tung University, Hsinchu, Taiwan, R.O.C.

J. Heat Transfer 122(1), 58-65 (Jul 27, 1999) (8 pages) doi:10.1115/1.521437 History: Received February 07, 1999; Revised July 27, 1999
Copyright © 2000 by ASME
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References

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Figures

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Schematic diagram of the experimental apparatus
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Instantaneous and view flow photos at selected cross sections for Re=102 and Gr=7.4×104 for (a) rectangular duct and (b) tapering duct
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Instantaneous end view flow photos at selected cross sections for Re=15 and Gr=1.0×104 for (a) rectangular duct and (b) tapering duct
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(a) Instantaneous flow photos and (b) time-averaged spanwise temperature distributions at y=1.5 cm at selected cross sections in tapering duct for Re=102 and Gr=2.5×104
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(a) Instantaneous flow photos and (b) time-averaged spanwise temperature distributions at y=1.5 cm at selected cross sections in rectangular duct for Re=102 and Gr=2.5×104
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Effects of Reynolds number on the spanwise-averaged Nusselt number distribution for Gr=7.4×104 for (a) rectangular duct and (b) tapering duct
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Effects of Grashof number on the spanwise-averaged Nusselt number distribution for Re=102 for (a) rectangular duct and (b) tapering duct

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