Rudraiah, N. ; Vortmeyer, D. (1982) The influence of permeability and of a third diffusing component upon the onset of convection in a porous medium International Journal of Heat and Mass Transfer, 25 (4). pp. 457-464. ISSN 0017-9310
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/001793...
Related URL: http://dx.doi.org/10.1016/0017-9310(82)90049-7
Abstract
The linear stability of three-component system in a porous medium is investigated in the presence of a gravitationally stable density gradient. Particular attention is given to systems with P1 = 10-4, K1 ≫ K2, K3 and v ≫ K2. It is shown that the boundary for the onset of overstability can be approximated by two planar asymptotes in a Rayleigh number plane. Overstable and salt-finger modes are found to be simultaneously unstable when the density gradients due to the components are of the same sign and the effect of permeability of the porous medium is to suppress the regions of convection and salt-finger modes in the Rayleigh number plane.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 47456 |
| Deposited On: | 11 Jul 2011 13:57 |
| Last Modified: | 11 Jul 2011 13:57 |
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