Modeling the role of interfacial layer in free convective axisymmetric MHD flow over a heated rotating cone in non-Newtonian based ternary hybrid nanofluids

This research addresses the influence of the solid–liquid interface layer on free convection flow and heat transfer of non-Newtonian-based ternary hybrid nanofluids over a rotating vertical cone within a curvilinear coordinate framework. The cone is placed upside down and is uniformly heated while rotating at a constant angular velocity. It is submerged in a ternary hybrid nanofluid of sodium alginate containing Al 2 O 3 , TiO 2 and SiO 2 nanoparticles. The non-Newtonian Casson fluid model is selected as the base fluid model to study the behavior of fluids. Governing equations for mass, momentum and energy are derived and similarity transformed into a dimensionless form. Using MATLAB's BVP4C solver, the transformed governing nonlinear equations are solved numerically. The study focuses on the impacts of interfacial layer thickness, Casson parameter, magnetic field strength, and nanoparticle concentration on flow and thermal fields. The findings indicate that the thermal conductivity ratio has a more pronounced effect on thermal conductivity than nanoparticle size. The interfacial layer's thickness and its thermal conductivity ratio confirm that it can modulate the velocity and the temperature fields. This study presents a comprehensive imaging approach to thermal systems incorporating non-Newtonian effects, magnetic effects, and interfacial effects for enhanced functional systems.