Heat Transfer Across a Two-Fluid-Layer Region

[+] Author and Article Information
J. H. Lienhard, I. Catton

School of Engineering and Applied Science, University of California, Los Angeles, CA 90024

J. Heat Transfer 108(1), 198-205 (Feb 01, 1986) (8 pages) doi:10.1115/1.3246887 History: Received June 26, 1984; Online October 20, 2009


Heat transfer across a two-fluid-layer region is calculated for Rayleigh numbers in excess of the critical value. The method of solution is based on Landau’s comments regarding the onset of turbulence, following Malkus and others. The linear stability problem is solved for its eigenvalues and eigenfunctions, and the eigenfunctions are used to calculate the contribution of secondary motion to heat transfer. Results are obtained in terms of an overall Nusselt number as a function of Rayleigh number, midlayer thickness, and midlayer thermal conductivity.

Copyright © 1986 by ASME
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