Publicou 18 edições por ano
ISSN Imprimir: 1064-2285
ISSN On-line: 2162-6561
Indexed in
NATURAL CONVECTION IN A RECTANGULAR ENCLOSURE WITH AN ARRAY OF DISCRETE HEAT SOURCES
RESUMO
A study of natural convection from a 3 × 3 array of isoflux discrete heat sources mounted on one of the vertical walls in a three-dimensional rectangular enclosure is made. Two different boundary conditions are considered, one in which the two side walls are cooled and the other in which the top and bottom walls are cooled. Numerical solutions are obtained using a finite volume method. Flow and heat transfer characteristics are investigated as a function of Rayleigh number (Ra), aspect ratio (A), and Prandtl number (Pr). The results show that the heat transfer rate increases with Ra. It also increases against A in the range 1-3, however, attains a maximum at around A = 3 and decreases beyond that. The entire enclosure above the bottom heaters is found to be more thermally active when the top and bottom walls are kept cold. However, an effective cooling is possible only in the case of side cold walls.
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DOĞAN Ayla, Özbalcı Oğuzhan, Experimental Investigation of Free Convection from Foam Heat Sinks in an Inclined Rectangular Channel, Cumhuriyet Science Journal, 2018. Crossref