Convecção natural tridimensional sobre fontes de calor discretas

AUTOR(ES)
DATA DE PUBLICAÇÃO

2003

RESUMO

In this work, the electronic component cooling is focused, aiming the understanding of the three-dimensional effects present in the natural convection on discrete or pontual heat sources. The finite volume method, implemented in the FLUENT package, was used to simulate the heat transfer processo The steady state flow was considered laminar and the properties were constant, except the density in the buoyancy term, where the Boussinesq approximation was used. Special attention was given to the physical phenomenon, aiming to increasing complexity levels, in order to monitoring the effects of conduction and radiation on the results. Quantitative and qualitative information about the flow were obtained by numerical simulation aiming to determine macroscopical characteristics of the flow. The parameters influencing the flow structure were evaluated, such as Rayleigh number. Prandtl number, cavities and channels aspect ratios, boundary conditions, and others. The studied cases were planned in order to the results and conclusions could fill in the blanks and to elucidate some conclusions present in the literature

ASSUNTO(S)

calor - transmissão analise numerica metodo dos volumes finitos calor - convecção natural

ACESSO AO ARTIGO

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