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ORIGINAL PAPER
Variable Gravity Effects on Thermal Instability of Nanofluid in Anisotropic Porous Medium
1
Department of Mathematics, Government P.G. College Dhaliara, Himachal Pradesh, INDIA
2
Department of Mathematics, NSCBM Govt. P.G. College Hamirpur, Himachal Pradesh, INDIA
3
Department of Mathematics, Govt. P.G. College Mandi, Himachal Pradesh, INDIA
Online publication date: 2013-09-06
Publication date: 2013-08-01
International Journal of Applied Mechanics and Engineering 2013;18(3):631-642
KEYWORDS
ABSTRACT
In this paper, we study the effects of variable gravity on thermal instability in a horizontal layer of a nanofluid in an anisotropic porous medium. Darcy model been used for the porous medium. Also, it incorporates the effect of Brownian motion along with thermophoresis. The normal mode technique is used to find the confinement between two free boundaries. The expression of the Rayleigh number has been derived, and the effects of variable gravity and anisotropic parameters on the Rayleigh number have been presented graphically
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