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TECHNICAL PAPERS: Natural and Mixed Convection

Effect of Partition Wall on Natural Convection Heat Transfer in a Vertical Air Layer

[+] Author and Article Information
Yoshiyuki Yamaguchi, Yutaka Asako

Department of Mechanical Engineering, Tokyo Metropolitan University, 1-1, Minami-Osawa, Hachioji, Tokyo, 192-0397 Japan

J. Heat Transfer 123(3), 441-449 (Jan 05, 2001) (9 pages) doi:10.1115/1.1370515 History: Received February 01, 2000; Revised January 05, 2001
Copyright © 2001 by ASME
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References

Figures

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Schematic diagram of a vertical air slot with a latticed partition wall
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The calculation domain and coordinates
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Main grid points near the partition wall
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Temperature Distribution in the Cell; for Ra=105; (a) δwall/L=10−3 and kwall/kair=1; (b) δwall/L=0.1 and kwall/kair=1; (c) δwall/L=10−3 and kwall/kair=103; and (d) δwall/L=0.1 and kwall/kair=103.
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Vertical velocity profiles in the Cell; for Ra=105; (a) δwall/L=10−3 and kwall/kair=1; (b) δwall/L=0.1 and kwall/kair=1; (c) δwall/L=10−3 and kwall/kair=103; and (d) δwall/L=0.1 and kwall/kair=103.
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Temperatures on the surfaces of the top and bottom wall; for Ra=105 and (δwall/L)⋅(kwall/kair)=1; (a) δwall/L=0.1 and kwall/kair=10; (b) δwall/L=10−2 and kwall/kair=102; and (c) δwall/L=10−3 and kwall/kair=103.
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Contours of Num as a function of δwall/L and kwall/kair; (a) Ra=104; (b) Ra=105.
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Contours of Num on log-log plots of δwall/L and kwall/kair; (a) Ra=104; (b) Ra=105.
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Contours of Qwall/Qtotal on log-log plots of δwall/L and kwall/kair; (a) Ra=104; (b) Ra=105.
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Qwall/Qtotal as a function of (δwall/L)⋅(kwall/kair) for H/L=1

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