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

Journal Article · Sat Aug 01 00:00:00 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), Vol. 109:3; ISSN 0022-1481
• Country of Publication: United States
• Language: English

Related Subjects

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