Numerical study on mixed convective flow of water‐based magnetite nanofluid through a wavy channel containing porous blocks under the effect of an oscillating magnetic field

Abstract

In this paper, the convective flow of magnetite (Fe3O4)‐water nanofluid through a wavy channel containing porous blocks in the presence of a non‐uniform oscillating magnetic field with magnetohydrodynamic (MHD) and ferrohydrodynamic (FHD) effects is considered. This magnetic field is produced by two current‐carrying wires, which are placed at fixed positions on the outside of the channel. In the present study, we use a two‐phase model that considers the effects of thermophoresis and Brownian motion on the concentration of nanoparticles within the fluid. The associated system of partial differential equations is solved using the mixed finite element method with double-struckP2−double-struckP1 Taylor‐Hood elements and the effects of time t, Strouhal number St, Hartmann number Ha, magnetic number Mn, solid volume fraction ϕ0, nanoparticle diameter ds on the fluid flow, heat transfer, concentration distribution and pressure drop within the channel are investigated.

Triple stratification effects on bioconvective stagnation point flow pertaining carbon nanotubes due to induced magnetic field

“…An analytical approach to study the significance of the Hall current and Soret effect on the nanoliquid flow through an inclined channel utilizing the Tiwari-Das model was carried out by Sabu et al [5]. A few recent studies on the nanomaterial flow through heterogeneous configurations can be seen in [6][7][8][9][10].…”