• Numerical Investigation of Natural Convection Heat Transfer between Two Vertical Plates with Symmetric Heating
• Author  :  Reda I. El-Ghnam
• Pages   :  31-44
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• Abstract

The present study deals with laminar natural convection flow in a vertical open-ended channel bounded by isothermal walls. A numerical investigation has been performed to estimate the effect of the channel width and wall-to-ambient temperature difference on natural convection heat transfer and induced flow rate. The results have been obtained for Pr of 0.7, b/L of (0.01 to 0.30) and Ra_b^* of (101 to 108). Different correlations are deduced to relate each of Nusselt number, flow velocity, flow temperature, thermal entrance length and Reynolds number with modified Rayleigh number and the width-to-length ratio of the channel. Temperature and velocity distribution are potted at different heights along the channel.

Keywords: Laminar natural convection; two vertical parallel plates; isothermal walls

Article published in International Journal of Thermal Technologies, Vol.5,No.1 (March-2015)