Abstract
The present work focuses on the Magnetohydrodynamic free convection heat of Ag–water nanofluid involved in a porous C-shaped enclosure equipped with an undulated baffle. Various thermophysical parameters are investigated through this specific configuration, such as Rayleigh number (103≤Ra<106), Hartmann number (0≤Ha≤100), Darcy number (10−5≤Da≤10−2), porosity (0.1≤ε≤0.8), and nanoparticles concentration (0.01≤ϕ≤0.08). The calculations were carried out through the finite element method for Prandtl number Pr=6.83. The novelty in this paper was the implementation of an inner baffle with a special shape inside the cavity instead of conventional ones and the definition of its optimal dimensions. The uniqueness of this work is that it overcomes the previous research gap by investigating the influence of the specific shape of the cold corrugated baffle on heat flux inside a C-shaped porous chamber. The obtained results show the favorable impact of increasing the thickness ζ and the length λ of this undulated baffle on the heat transmission performance. However, the variation in the undulation number (und) presented a negligible impact.