Escoamento natural entre placas planas verticais com aquecimento assimetrico

AUTOR(ES)
DATA DE PUBLICAÇÃO

1998

RESUMO

This work studies the developm.entof laminar free convection in vertical flat parallel plates with asymmetric heating. Thermal boundary conditions of uniform wall heat fluxes and uniform wall temperature are considered. Solutions of the flow on steady state are obtained for air at different wall heat fluxes and wall temperature differences (above the temperature of the fluid at the channel) and also different geometries of the channel (distance between the plates (b)). The equations were written in finite difference using primitive variables and they were solved by implicitesqueme all the terms of the governing equations, and by means of a three point derivative formula the terms wall temperature at heat fluxes. The results show there is one optimal distance between the plates to maximize the heat transfer. The results were compared with the literature, both numerical and experimentalworks

ASSUNTO(S)

finite differences calor - convecção natural natural convection fluxo laminar laminar flow transmission of heat calor - transmissão diferenças finitas

ACESSO AO ARTIGO

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