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RESEARCH PAPERS

Periodic Growth and Decay of a Frozen Crust over a Heat Generating Liquid Layer

[+] Author and Article Information
F. B. Cheung

Reactor Analysis and Safety Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439

J. Heat Transfer 103(2), 369-375 (May 01, 1981) (7 pages) doi:10.1115/1.3244468 History: Received August 29, 1980; Online October 20, 2009

Abstract

A theoretical investigation is made of thermal oscillations in a horizontal layer of liquid heated at high Rayleigh number from within and cooled to freezing from above. The processes of turbulent thermal convection in the liquid layer and transient heat conduction in the solidified layer are modeled and the conditions leading to periodic self-sustained oscillations are identified. The results of this study indicate that there are five independent parameters that control the oscillatory behavior of the system. Effects of these parameters on the behavior of the transient liquid temperature and the instantaneous crust thickness are obtained and discussed. Validity of the present approach is justified based upon the higher-order solutions.

Copyright © 1981 by ASME
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