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Vol 9, No 2:

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Thermal Instability of Couple-Stress Rivlin-Ericksen Ferromagnetic Fluid Flowing Through a Porous Medium in Presence of Variable Gravity Field
Abstract
Here, we have discussed thermal instability of a couple-stress Rivlin-Ericksen ferromagnetic fluid flowing through a porous medium in the presence of a variable gravity field. Using normal mode analysis technique, the dispersion relation has been obtained and solved analytically. For stationary conventions, it is found that couplestress has a stabilizing effect if λ > 0 and a destabilizing effect if λ < 0.. Permeability has a stabilizing effect if λ < 0 and a destabilizing effect if λ > 0. Magnetization always has a stabilizing effect either λ > 0 or λ < 0. 
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ISSN(P) 2350-0174

ISSN(O) 2456-2378

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