Mixed convection flow in a horizontal rectangular channel subjected to a horizontal thermal gradient

被引：0
|
作者：
F. Koffi
C. Abid
M. Medale
F. Papini
机构：
[1] Aix-Marseille University,IUSTI UMR CNRS N° 6595
[2] Technopôle Château Gombert,undefined
来源：
Heat and Mass Transfer | 2011年 / 47卷
关键词：
Heat Flux; Natural Convection; Rayleigh Number; Mixed Convection; Richardson Number;
D O I：
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学科分类号：
摘要：
This paper deals with a mixed convection water flow in a horizontal rectangular duct, uniformly heated from one lateral vertical wall and thermally insulated elsewhere. The supplied heat flux induces a secondary flow, which structure is constituted of one longitudinal roll in the considered aspect ratio (Γ = 1.9), embedded into a return flow of possibly large stream wise extension (up to twenty channel heights). Such situation induces helicoidal trajectories for the fluid flow particles, which contributes to a heat transfer enhancement compared to purely forced convection flow.
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