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Effect of Rotation on Triple-Diffusive Convection in Walters’ (Model B´) Fluid in Porous Medium Chand Suresh* Department of Mathematics, SCVB Govt. College, Palampur, HP-176061, India *Corresponding Author: suresh-9@hotmail.com
Online published on 5 February, 2014. Abstract The effect of rotation on triple-diffusive convection in Walters’ (Model B´) fluid in porous medium is considered in the presence of uniform vertical rotation. For the case of stationary convection, the stable solute gradients and rotation have stabilizing effect on the system, whereas the medium permeability has a 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, rotation, 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. Top Keywords Triple-diffusive convection, Walters’ (Model B´) fluid, Thermal convection, Solute gradients, Vertical magnetic field, Rotation. Top | |
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