Onset of convection in an anisotropic porous layer of finite lateral extent

Authors
Mahidjiba, A Robillard, L Vasseur, P Mamou, M
Citation
A. Mahidjiba et al., Onset of convection in an anisotropic porous layer of finite lateral extent, INT COMM HE, 27(3), 2000, pp. 333-342
Citations number
6
Categorie Soggetti
Mechanical Engineering
Journal title
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
ISSN journal
07351933 → ACNP
Volume
27
Issue
3
Year of publication
2000
Pages
333 - 342
Database
ISI
SICI code
0735-1933(200004)27:3<333:OOCIAA>2.0.ZU;2-E
Abstract
A linear stability analysis is performed to study the onset of convection i n a horizontal saturated porous layer of finite aspect ratio and anisotropi c in permeability. The critical Rayleigh number is established as a functio n of the permeability ratio, the inclination angle of the principal axes an d the enclosure aspect ratio. A linear stability analysis is conducted thro ugh a numerical procedure. Also, for the weak finite amplitude convection, results are obtained by solving numerically the full governing equations. ( C) 2000 Elsevier Science Ltd.