Numerical Study on Binary Nanofluid Convection in a Rotating Porous Layer

Abstract

The present paper investigates the convection in a binary nanofluid layer in porous medium under the influence of rotation using Darcy–Brinkman model. A set of partial differential equations based on conservation laws for binary nanofluid convection are solved using Normal mode technique and one term weighted residual method. The problem is analyzed for both stationary as well as oscillatory convection for free-free boundaries of the layer. The oscillatory motions come into existence for bottom heavy configuration of nanoparticles in the fluid layer. As far as thermal Rayleigh number is concerned, it does not show much variation with respect to different nanoparticles (alumina, copper, titanium oxide, silver) for bottom heavy configuration. Rotation parameter is found to stabilize the system significantly.