Triple-Diffusive Convection in Rivlin-Ericksen Fluid under varying gravity field in Porous Medium

The Triple-Diffusive convection in Rivlin-Ericksen fluid with varying gravity field is considered in the presence of uniform vertical magnetic field in porous medium. For the case of stationary convection, the magnetic field, varying gravity field and the stable solute gradients have stabilizing eff...

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Bibliographic Details
Published in:Research Journal of Science and Technology 2013-01, Vol.5 (1), p.6-6
Main Authors: Kango, S K, Sharma, Sanjay, Singh, Vikram
Format: Article
Language:English
Subjects:
Convection
Online Access:Get full text
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Summary:The Triple-Diffusive convection in Rivlin-Ericksen fluid with varying gravity field is considered in the presence of uniform vertical magnetic field in porous medium. For the case of stationary convection, the magnetic field, varying gravity field and the stable solute gradients have stabilizing effects, whereas the medium permeability has destabilizing (or stabilizing) effect on the system under certain conditions. A linear stability analysis theory and normal mode analysis method have been carried out to study the onset convection. The kinematic viscoelasticity has no effect on the stationary convection. The solute gradients, magnetic field, varying gravity field, porosity and kinematic viscoelasticity introduce oscillatory modes in the system, which were non-existent in their absence. The sufficient conditions for the non-existence of overstability are also obtained. The results are also shown graphically.
ISSN:0975-4393
2349-2988