Influence of Hall Current, Thermal Dispersion and Heat Generation on Kerosene-Based TiO₂ Nanofluid Flow Through a Rotating Porous Channel

Abstract

In contrast to heat generation and thermal dispersal, the Hall current and rotation factors of a kerosene-based titanium dioxide nanoliquid discharge across two parallel walls embedded in a porous channel are inspected. Suction and hydromagnetic factors are contemplated. Using appropriate initial and boundary conditions, the perturbation approach can yield a precise analytical solution to the governing equations for the nanofluid velocity, temperature, and concentration. Expressions for the shear stress, mass transfer rate, and heat transfer rate at the plates can be obtained. On the one hand, a graphical representation of the primary and secondary velocities, the nanoliquid temperature, and the species concentration is shown. However, for distinct values of the related flow factors, the numerical estimates of shear stress, mass transfer rate, and heat transfer rate for the walls are presented in tabular form. Because of the solute buoyancy force's contribution, the resulting primary and secondary velocity profiles continuously rise to a high level. The concentration increases in conjunction with increases in heat generation and thermal diffusion characteristics throughout the nanofluid. When the thermal buoyancy force is high enough, the primary and secondary velocity profiles diminish. Hall current and the Darcy parameter raise the primary and secondary skin friction coefficients at the upper wall while decreasing them at the lower wall. However, the primary and secondary skin friction coefficients are affected in opposite ways by thermal buoyancy force and magnetic parameter. Results are compared with existing literature.