ISSN: 1091-028X Print

	You can order a single issue or an individual article, as well as view the table of contents or article abstract by clicking on the volume number, then the issue number in the right sidebar.
Institutional price: $1071.00
Online subscription

Year 1998, Volume 1 / Issue 1

Pages: 128

Article price - $35.00

Convection Induced by Inclined Gradients in a Shallow Porous Medium Layer

Jose L. Lage
Laboratory for Porous Materials Applications, Mechanical Engineering Department, Box 750337, School of Engineering, Southern Methodist University, Dallas, TX, USA, 75275-0337

Donald A. Nield
Department of Engineering Science, University of Auckland, New Zealand

A review is made of recent convection studies in a shallow layer of a saturated porous medium, induced by applied thermal and/or solutal gradients. This problem is likely to be paradigmatic for convection induced by such gradients in more general geometries. A horizontal gradient induces a "Hadley circulation," which can be superimposed on any existing forced convection flow. The stability of the combined basic flow depends on the horizontal and vertical components of the inclined gradients. Above a certain vertical gradient value an additional cellular flow is superimposed on the basic flow. The nature of the additional cellular flow (e.g., stationary or oscillatory horizontal rolls whose axes are perpendicular to the vertical gradient and aligned with or perpendicular to the horizontal gradient), depends on the parameters involved.

pages 57-69

<< Previous article   Next article >>