Onset of Convection in a Fluid Saturated Porous Layer Overlying a Solid Layer Which is Heated by Constant Flux

[+] Author and Article Information
C. Y. Wang

Departments of Mathematics and Mechanical Engineering, Michigan State University, East Lansing, MI 48824

J. Heat Transfer 121(4), 1094-1097 (Nov 01, 1999) (4 pages) doi:10.1115/1.2826064 History: Received December 01, 1998; Revised May 11, 1999; Online December 05, 2007


The thermoconvective stability of a porous layer overlying a solid layer is important in seafloor hydrothermal systems and thermal insulation problems. The case for constant flux bottom heating is considered. The critical Rayleigh number for the porous layer is found to increase with the thickness of the solid layer, a result opposite to constant temperature heating.

Copyright © 1999 by The American Society of Mechanical Engineers
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