Analysis of natural convection in a cylindrical enclosure

Journal Article · Thu Jan 01 04:00:00 EST 1987 · Numer. Heat Transfer; (United States)

DOI:https://doi.org/10.1080/10407798708552570· OSTI ID:5914541

Huang, D Y; Hsieh, S S

Steady laminar natural convection flow in a cylindrical enclosure with an aspect ratio (height to radius) of unity has been analyzed numerically for 10/sup 2/ less than or equal to Ra less than or equal to 2 x 10/sup 5/. The enclosure consists a cold bottom wall and hot side and top walls. Physical geometry and boundary conditions were made to simulate the presence of oil storage tanks in the petroleum industry and passive solar heating for energy-efficient buildings. The flow field is found to consist of two large recirculating zones, both of which are symmetrical. Results indicate that a major fraction of the total heat transfer comes from the bottom wall. The Prandtl number effect is also presented for 1 less than or equal to Pr less than or equal to 200.

• Research Organization: Dept. of Die Engineering, National Kaohsiung Institute of Technology, Kaohsiung 80761
• OSTI ID: 5914541
• Journal Information: Numer. Heat Transfer; (United States), Journal Name: Numer. Heat Transfer; (United States) Vol. 12:1; ISSN NUHTD
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
024000 -- Petroleum-- Storage-- (-1989)
14 SOLAR ENERGY
140901* -- Solar Thermal Utilization-- Space Heating & Cooling
BOUNDARY CONDITIONS
CONFIGURATION
CONTAINERS
CONVECTION
CYLINDRICAL CONFIGURATION
EFFICIENCY
ENERGY SOURCES
ENERGY SYSTEMS
ENERGY TRANSFER
EQUIPMENT
FLUID FLOW
FOSSIL FUELS
FUELS
GEOMETRY
HEAT TRANSFER
HEATING
HEATING SYSTEMS
LAMINAR FLOW
MASS TRANSFER
MATHEMATICAL MODELS
MATHEMATICS
NATURAL CONVECTION
PASSIVE SOLAR HEATING SYSTEMS
PETROLEUM
PRANDTL NUMBER
SOLAR EQUIPMENT
SOLAR HEATING
SOLAR HEATING SYSTEMS
SOLAR SPACE HEATING
SPACE HEATING
STORAGE
SYMMETRY
TANKS
TEMPERATURE DISTRIBUTION
THERMAL EFFICIENCY
THERMODYNAMICS