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ISSN Online: 2377-424X

ISBN Print: 0-89116-559-2

International Heat Transfer Conference 8
August, 17-22, 1986, San Francisco, USA

NATURAL CONVECTIVE HEAT TRANSFER ACROSS A LIQUID-FILLED CAVITY

Get access (open in a dialog) DOI: 10.1615/IHTC8.3090
pages 1527-1532

Abstract

Free convective flow in an open liquid - cooled rectangular cavity has been numerically studied. The flow is assumed to be two - dimensional. One vertical wall is heated to a uniform temperature and the other cooled to a lower uniform temperature. The bottom of the cavity is assumed to be insulated and the liquid surface is assumed to remain flat and the heat transfer rate and shear stress at this surface are assumed to be negligible. The study is based on the solution of the steady Navier−Stokes, continuity and energy equations which have been written with the stream function, vorticity and the temperature as variables. These equations, written in dimensionless form, have been solved using the finite - element method. Results have been obtained for Rayleigh numbers of between 5000 and 5 × 105 for Prandtl numbers of 1 and 10 and aspect ratios of 0.5, 1 and 2. The results have been compared with those for a classic closed cavity under the same circumstances.