Double Diffusion, Chemical Reaction, and Heat Source Effects on Magnetohydrodynamic Flow of Copper and Silver Water-based Nanofluids over a Moving Vertical Porous Plate

Abstract

In this manuscript, the impact of Soret and Dufour numbers on magnetohydrodynamic (MHD) flow for Silver (Ag) and Copper (Cu) water-based nanofluids past a moving plate over a porous medium are investigated numerically. The influences of heat sources and chemical reactions are also considered, as their applications are prevalent in several industries. The flow's constituents' governing equations are coupled with Partial differential equations (PDEs) that are converted into a dimensionless form using appropriate flow parameters. Subsequently, the finite-difference technique is used to resolve the resulting equations. The varied effects of flow parameters on the momentum, temperature, and concentration boundary layers are investigated using various graphs. The results presented in terms of non-dimensional parameters like shear stress factor, Sherwood number, and Nusselt number of fluids are tabulated for the nanofluids Ag-water and Cu-water. It is found that the augmented values of Dufour and Soret numbers enhance the fluid velocity. However, the species concentration decreases in the existence of Dufour and chemical reaction effects.