Natural convection in a vertical annulus containing water near the density maximum

Journal Article · Sun Nov 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/10.1115/1.3248201· OSTI ID:5403450

Lin, D S; Nansteel, M W ^[1]

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1. Univ. of Pennsylvania, Philadelphia (USA)

Steady natural convection of water near the density extremum in a vertical annulus is studied numerically. Results for flow in annuli with aspect ratio 1 {le} A {le} 8 and varying degrees of curvature are given for 10{sup 3} {le} Ra {le} 10{sup 5}. It is shown that both the density distribution parameter R and the annulus curvature K have a strong effect on the steady flow structure and heat transfer in the annulus. A closed-form solution for the vertical flow in a very tall annulus is compared with numerical results for finite-aspect-ratio annuli.

• OSTI ID: 5403450
• 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. 109:4; ISSN 0022-1481; ISSN JHTRA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
ANNULAR SPACE
CALCULATION METHODS
CONFIGURATION
CONVECTION
DENSITY
ENERGY TRANSFER
FLUID FLOW
FOOD INDUSTRY
HEAT TRANSFER
HYDROGEN COMPOUNDS
INDUSTRY
MASS TRANSFER
MEDICINE
NATURAL CONVECTION
ORIENTATION
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
REACTORS
SPACE
STEADY FLOW
WATER