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On Double-Diffusive Convection in a Binary Viscoelastic Fluid Saturated Anisotropic Porous Layer
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In the present paper it is mathematically established that the linear growth rate of an arbitrary neutral or unstable oscillatory perturbation of growing amplitude in a double diffusive binary viscoelastic fluid saturated anisotropic porous layer heated from below must lie inside a semicircle in the right half of the (Pr, Pi)-plane whose centre is at the origin and radius equals λ1PrDRaT+√PrD(λ12RaT2PrD+4Ras)/2, where RaT and Ras are the Darcy -Rayleigh number and the solute Rayleigh number respectively. Further, it is proved that this result is uniformly valid for quite general nature of the bounding surfaces.
Keywords
Double-Diffusive Convection, Viscoelastic Fluid, Porous Medium, Complex Growth Rate, Solute Rayleigh Number.
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