Natural Convection in an Enclosure With Discrete Heat Sources on the Vertical Walls

1993 ◽  
Vol 115 (4) ◽  
pp. 444-448 ◽  
Author(s):  
A. Hadim ◽  
M. Ramot
Keyword(s):  
Natural Convection ◽  
Heat Sources ◽  
Discrete Heat Sources ◽  
Vertical Walls

Natural Convection Cooling of Multiple Heat Sources in Parallel Open-Top Cavities Filled With a Fluorinert Liquid

1998 ◽  
Vol 120 (1) ◽  
pp. 73-81 ◽  
Author(s):  
M. Behnia ◽  
A. A. Dehghan ◽  
H. Mishima ◽  
W. Nakayama
Keyword(s):  
Heat Transfer ◽  
Natural Convection ◽  
Heat Source ◽  
Alumina Ceramic ◽  
Heat Sources ◽  
Flow And Heat Transfer ◽  
Discrete Heat Sources ◽  
Vertical Walls ◽  
Convection Cooling ◽  
Lower Heat

Natural convection immersion cooling of discrete heat sources in a series of parallel interacting open-top cavities filled with a fluorinert liquid (FC–72) has been numerically studied. A series of open-top slots which are confined by conductive vertical walls with two heat sources on one side are considered. One of the slots is modeled and simulated. The effect of the separation between the heat sources on the flow and heat transfer characteristics of the wall and the effect of strength of the lower heat source (which location is upstream of the other one) on the flow and heat transfer of the upper heat source are considered. The wall thermal conductivity considered ranges from adiabatic to alumina-ceramic. The results of bakelite and alumina-ceramic are shown, which are commonly used as wiring boards in electronic equipment. It is found that conduction in the wall is very important and enhances the heat transfer performance.

scholarly journals Numerical study of natural convection in an enclosure with discrete heat sources on one of its vertical walls

2019 ◽  
pp. 448-448
Author(s):  
Mehmet Pamuk
Keyword(s):  
Natural Convection ◽  
Numerical Study ◽  
Heat Sources ◽  
Confined Spaces ◽  
Nusselt Numbers ◽  
Discrete Heat Sources ◽  
Computer Chips ◽  
Vertical Walls ◽  
Comparison Of The Results ◽  
Rayleigh Numbers

In this study, natural convection in a fluid-filled rectangular enclosure is analyzed using Comsol? commercial software. The fluid in which natural convection takes place is a dielectric liquid called FC-75. Attached to one of the vertical walls of the enclosure is an array of rectangular protrusions, each representing computer chips mounted on a PCB. The nominal power consumed by each chip is assumed to be 0.35W, 1.07W, 1.65W and 2.35W. This corresponds exactly to the values used in the experiments, which were performed once by the author of this study. The results of the experiment and the numerical study are shown as Nusselt numbers vs. Rayleigh numbers, both being the most important dimensionless parameters of natural convection. A comparison of the results has shown that Comsol? can achieve reliable results in similar problems, eliminating the need to build expensive experimental setups and spending time conducting experiments. The simulation results are aimed to be used in similar designs of electronic circuits in confined spaces.

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

Natural Convection in an Enclosure with a Pair of Discrete Heat Sources

2019 ◽  
Vol 33 (1) ◽  
pp. 234-245
Author(s):  
Mehmet Saglam ◽  
Bugra Sarper ◽  
Orhan Aydin
Keyword(s):  
Natural Convection ◽  
Heat Sources ◽  
Discrete Heat Sources
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