ISSN

2231-3915 (Online)
2231-3907 (Print)


Author(s): S. K. Kango, Sanjay Sharma, Kalpna Chadha

Email(s): skkango72@gmail.com

DOI: 10.5958/2231-3915.2016.00020.1   

Address: S. K. Kango1*, Sanjay Sharma2, Kalpna Chadha3
1Government College, Barsar (Hamirpur)-174305, Himachal Pradesh, INDIA
2Government College, Darang (Mandi), Himachal Pradesh, INDIA
3Government College, Sujanpur (Hamirpur), Himachal Pradesh, INDIA
*Corresponding Author

Published In:   Volume - 6,      Issue - 2,     Year - 2016


ABSTRACT:
This paper deals with the theoretical investigation of the triple-diffusive convection in a micropolar ferrofluid layer heated and soluted below subjected to a transverse uniform magnetic field in the presence of uniform vertical rotation. For a flat fluid layer contained between two free boundaries, an exact solution is obtained. A linear stability analysis theory and normal mode analysis method have been carried out to study the onset convection. The influence of various parameters like rotation, solute gradients, and micropolar parameters (i.e. coupling parameter, spin diffusion parameter and micropolar heat conduction parameter) has been analyzed on the onset of stationary convection. The critical magnetic thermal Rayleigh number for the onset of instability is also determined numerically for sufficiently large value of buoyancy magnetization parameter M1(ratio of the magnetic to gravitational forces). The principle of exchange of stabilities is found to hold true for the micropolar fluid heated from below in the absence of micropolar viscous effect, microinertia, solute gradient and rotation. The oscillatory modes are introduced due to the presence of the micropolar viscous effect, microinertia, solute gradient and rotation, which were non-existent in their absence.


Cite this article:
S. K. Kango, Sanjay Sharma, Kalpna Chadha. Triple- diffusive Convection in a Micropolar Rotating Ferrofluid. Int. J. Tech. 2016; 6(2): 123-132. doi: 10.5958/2231-3915.2016.00020.1


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DOI: 10.5958/2231-3915 


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