Abstract
An analysis is presented for transient laminar natural convection in a rectangular cavity containing either one fluid or two immiscible liquids. The resultant differential equations were integrated numerically and computed results are presented for the transient streamline patterns and for the isotherms, for a variety of conditions including high, low and intermediate values of the Prandtl number. The computed results agree with experimental data, both obtained in this study, and reported by other investigators. Such comparison is presented regarding temperature profiles, velocity profile, transient behavior and the onset of secondary flows.
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