Natural convection from two-dimensional discrete heat sources in a rectangular enclosure

1991 ◽  
Vol 34 (7) ◽  
pp. 1679-1693 ◽  
Author(s):  
M.L. Chadwick ◽  
B.W. Webb ◽  
H.S. Heaton
Keyword(s):  
Natural Convection ◽  
Heat Sources ◽  
Two Dimensional ◽  
Rectangular Enclosure ◽  
Discrete Heat Sources

NATURAL CONVECTION IN A RECTANGULAR ENCLOSURE WITH AN ARRAY OF DISCRETE HEAT SOURCES

2017 ◽  
Vol 48 (5) ◽  
pp. 391-399 ◽  
Author(s):  
S. Saravanan ◽  
V. P. M. Senthil Nayaki ◽  
P. Kandaswamy
Keyword(s):  
Natural Convection ◽  
Heat Sources ◽  
Rectangular Enclosure ◽  
Discrete Heat Sources

Interaction between discrete heat sources in horizontal natural convection enclosures

2002 ◽  
Vol 45 (26) ◽  
pp. 5117-5132 ◽  
Author(s):  
Qi-Hong Deng ◽  
Guang-Fa Tang ◽  
Yuguo Li ◽  
Man Yeong Ha
Keyword(s):  
Natural Convection ◽  
Heat Sources ◽  
Discrete Heat Sources

Three-Dimensional Steady and Oscillatory Natural Convection in a Rectangular Enclosure With Heat Sources

2016 ◽  
Vol 138 (9) ◽  
Author(s):  
Amin Bouraoui ◽  
Rachid Bessaïh
Keyword(s):  
Heat Transfer ◽  
Natural Convection ◽  
Numerical Study ◽  
Three Dimensional ◽  
Air Cooling ◽  
Heat Sources ◽  
Rectangular Enclosure ◽  
Aspect Ratios ◽  
Simpler Algorithm ◽  
Strong Relation

In this paper, a numerical study of three-dimensional (3D) natural convection air-cooling of two identical heat sources, simulating electronic components, mounted in a rectangular enclosure was carried out. The governing equations were solved by using the finite-volume method based on the SIMPLER algorithm. The effects of Rayleigh number Ra, spacing between heat sources d, and aspect ratios Ax in x-direction (horizontal) and Az in z-direction (transversal) of the enclosure on heat transfer were investigated. In steady state, when d is increased, the heat transfer is more important than when the aspect ratios Ax and Az are reduced. In oscillatory state, the critical Rayleigh numbers Racr for different values of spacing between heat sources and their aspect ratios, at which the flow becomes time dependent, were obtained. Results show a strong relation between heat transfers, buoyant flow, and boundary layer. In addition, the heat transfer is more important at the edge of each face of heat sources than at the center region.

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