Effect of nonuniform heating on laminar mixed convection in ducts

Journal Article · Sun Feb 01 04:00:00 EST 1987 · Journal of Heat Transfer (Transcations of the ASME (American Society of Mechanical Engineers), Series C); (United States)

DOI:https://doi.org/10.1115/1.3248033· OSTI ID:5476784

Law, Hin-Sum; Masliyah, J H; Nandakumar, K ^[1]

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1. Univ. of Alberta, Edmonton (Canada)

Combined convection slow in square, circular, and semicircular ducts was numerically studied for axially uniform heat flux. The peripheral condition is that of the top half of the duct is insulated while the bottom half is heated. For the case of a square duct, dual solutions are obtained where the secondary flow is characterized either with two or four vortices. Regions of dual solutions have been mapped in the parameter space of aspect ratio and Grashof number. For the case of a circular duct, only the solution characterized by two vortices is obtained.

• OSTI ID: 5476784
• Journal Information: Journal of Heat Transfer (Transcations of the ASME (American Society of Mechanical Engineers), Series C); (United States), Journal Name: Journal of Heat Transfer (Transcations of the ASME (American Society of Mechanical Engineers), Series C); (United States) Vol. 109:1; ISSN 0022-1481; ISSN JHTRA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
ASPECT RATIO
CALCULATION METHODS
CIRCULAR CONFIGURATION
CONFIGURATION
CONVECTION
DUCTS
ENERGY TRANSFER
GRASHOF NUMBER
HEAT FLUX
HEAT TRANSFER
MASS TRANSFER
RECTANGULAR CONFIGURATION
SHAPE
SQUARE CONFIGURATION
VORTICES