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TECHNICAL PAPERS: Natural and Mixed Convection

Line Plume Approximation on Atrium Smoke Filling With Thermal Stratified Environment

[+] Author and Article Information
J. Li, W. K. Chow

Department of Building Services Engineering, The Hong Kong Polytechnic University, Hong Kong, China

J. Heat Transfer 125(2), 289-300 (Mar 21, 2003) (12 pages) doi:10.1115/1.1532009 History: Received February 13, 2002; Revised September 25, 2002; Online March 21, 2003
Copyright © 2003 by ASME
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Figures

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Geometry of the problem
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Variation of the plume width with height
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Variation of the plume centerline density difference with height
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Variation of the plume centerline velocity with height
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Comparison of the plume rising in stratified environment with that rising in uniform ambient
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Geometry for numerical experiments: (a) plane y-z; and (b) elevation
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Sensitivity studies on the grid size: (a) temperature distribution; and (b) vertical velocity distribution.
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Results for case NTS: (a) temperature at 50 s; (b) velocity at 50 s; (c) temperature at 150 s; and (d) velocity at 150 s
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Thermal stratification assumed for WTS
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Numerical results at 25 s and 50 s for case WTS: (a) temperature at 25 s; (b) velocity at 25 s; (c) temperature at 50 s; and (d) velocity at 50 s
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Numerical results at 100 s and 150 s for case WTS: (a) temperature at 100 s; (b) velocity at 100 s; (c) temperature at 150 s; and (d) velocity at 150 s
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Smoke front at central x-z plane for case WTS: (a) 25 s; (b) 50 s; and (c) 100 s

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