Effects of stratification on thermal convection in horizontal porous layers with localized heating from below

Journal Article · Sat Aug 01 04:00:00 EDT 1987 · Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States)

DOI:https://doi.org/10.1115/1.3248142· OSTI ID:5939844

El-Khatib, G; Prasad, V ^[1]

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1. Columbia Univ., New York, NY (United States)

The purpose of the present work is to study numerically the natural convection in a horizontal porous layer in the presence of a stable, linear thermal gradient. The geometry considered is a two-dimensional horizontal cavity filled with a fluid-saturated porous medium whose bottom surface is cooled at a constant temperature {Tc}, except for a central portion of the surface where isothermal heat source exists. The temperature on the side walls varies linearly from the bottom surface temperature {Tc} to the top wall temperature T{sub t}. Detailed flow and temperature field solutions are obtained for various values of thermal stratification ratio S. When S = 0, the present problem reduces to natural convection in horizontal porous layers with localized heating from below.

• OSTI ID: 5939844
• Journal Information: Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States), Journal Name: Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States) Vol. 109:3; ISSN 0022-1481; ISSN JHTRA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
CONVECTION
ENERGY TRANSFER
GEOTHERMAL SYSTEMS
HEAT TRANSFER
MANAGEMENT
MASS TRANSFER
MATERIALS
NATURAL CONVECTION
POROUS MATERIALS
RADIOACTIVE WASTE DISPOSAL
RADIOACTIVE WASTE MANAGEMENT
STRATIFICATION
WASTE DISPOSAL
WASTE MANAGEMENT