Numerical Study of Non-Newtonian Fluid in a Cavity with Corrugated Bottom Wall Using Buongiorno’s Mathematical Model

A 2-dimensional computational analysis is carried out for a time dependent double diffusive mixed convection flow using non-Newtonian nanofluid. square-shaped cavity with corrugated bottom wall taken higher temperature and concentration on the top wall. The physical model under consideration represented by set of governing equations solved Galerkin weighted residual method based Finite Element Analysis. Solutions are done 4 controlling parameters such as Richardson number (Ri = 0.1 - 15), Lewis (Le 0.5 3), thermophoresis parameter (Nt 0.2 0.9), Brownian motion (Nb 1.0) at different values τ. For aforementioned parameters, heat mass transfer rates, distributions, velocity distributions in terms isotherm, streamlines, iso-concentration graphically presented. It has been observed that Ri, both Nuav Shav increased while Le decreased Nt any fixed time. worth noting considered exhibits consistent behavior after while. HIGHLIGHTS numerical nanofluid sliding upward performed Buongiorno's mathematical effect number, motion, dimensionless periods addressed rate increase value GRAPHICAL ABSTRACT