ISSN: 2574-187X
Authors: Chowdhury K*, Uddin MN, Shome M and Mitu AA
A numerical analysis of MHD mixed convective flow through copper-water nanofluid in a double lid driven enclosure with wavy bottom wall is executed. The top wall of the enclosure is kept insulated, the vertical walls are cooled isothermally and are moving at a constant speed in the upward and downward directions respectively whereas the wavy bottom wall is considered as sinusoidal heat source. The physical problem is represented mathematically by a set of governing equations and these equations are solved by using finite element method of Galerkin weighted residual approach. The fundamental flow physics and thermal behavior are explored in terms of relevant parameters through streamlines, isotherms and average Nusselt number. The results demonstrate that heat transfer rate intensifies with the increasing value of solid volume concentration of nanoparticle and declines with the enhancement of magnetic strength. Best heat transfer performance is apparent in absence of magnetic field in the natural convection regime.
Keywords: Mixed Convection; Magnetohydrodynamics; Finite Element Method; Sinusoidal Heat Source; Nanofluid
