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Numerical Heat Transfer, Part A: Applications
An International Journal of Computation and Methodology
Volume 27, 1995 - Issue 6
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Original Articles

NATURAL CONVECTION IN OPEN CAVITIES AND SLOTS

Pages 705-716 | Received 14 Dec 1993, Accepted 20 Sep 1994, Published online: 29 Oct 2007
 

Abstract

The present work is concerned with natural convection from open cavities or heated plates attached with parallel vertical strips. The bottom of the cavity is heated, and the vertical walls are assumed adiabatic. Numerical results are presented for steady, laminar natural convection for the geometry described. Effects of Rayleigh numbers from 1 × 10 3 to 1 × 10 7 , inclination angles from 10° to 90°, and aspect ratios of 0.5, 1.0, and 2.0 are investigated for a fixed Prandtl number (0.7). It is found that the average Nusselt number is not very sensitive to the inclination angle. Flow becomes unstable at high Rayleigh numbers and at low inclination angles. Flow pattern and heat transfer results are presented and discussed.

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