Nonlinear Stability of Double-diffusive Convection in a Porous Layer with Throughflow and Concentration based Internal Heat Source

N, Deepika and P A, Lakshmi Narayana (2016) Nonlinear Stability of Double-diffusive Convection in a Porous Layer with Throughflow and Concentration based Internal Heat Source. Transport in Porous Media. pp. 1-12. ISSN 0169-3913 (In Press)

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Abstract

In this study, nonlinear stability analysis of double-diffusive convection in a horizontal fluid saturated porous layer has been investigated. Concentration based internal heat source and vertical throughflow effects are considered during investigation. Energy method has been implemented to develop the nonlinear stability analysis. Runge–Kutta and shooting methods have been used to solve the eigenvalue problem. Critical thermal Rayleigh number is obtained for assigned values of governing parameters. Results of linear and nonlinear theories have been compared. It is observed that for downward throughflow, when Peclet number Pe is high, the effect of concentration based internal heat source γ is insignificant.

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IITH Creators:
IITH CreatorsORCiD
P A, Lakshmi NarayanaUNSPECIFIED
Item Type: Article
Uncontrolled Keywords: Double-diffusive convection, Nonlinear stability, Concentration based internal heat source, Vertical throughflow, Porous medium
Subjects: ?? sub3.8 ??
Divisions: Department of Mathematics
Depositing User: Team Library
Date Deposited: 25 Jan 2016 04:54
Last Modified: 25 Jan 2016 04:54
URI: http://raiith.iith.ac.in/id/eprint/2148
Publisher URL: http://dx.doi.org/10.1007/s11242-016-0626-x
OA policy: http://www.sherpa.ac.uk/romeo/issn/0169-3913/
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