Magnetic dipole-controlled flow and heat transfer of magnetite and manganese zinc ferrite-based nanofluid over a rotating cone for thermal energy systems

Abstract

This study investigates the flow characteristics of a ferrofluid past a rotating cone subjected the influence of a magnetic dipole. The nonlinear coupled partial differential equations describing the flow phenomena of ferrofluid over a rotating cone are converted into ordinary differential equations by employing appropriate similarity transformations. The transformed equations are then solved numerically using bvp4c technique in MATLAB software. The analysis focuses on magnetite ferrite Fe 3 O 4 and Manganese zinc ferrite Mn[Formula: see text]ZnFe 2 O 4 nanoparticles which are dispersed in water in a rotating cone, are characterized in this paper. The proposed ferrofluid model obeys the Fourier law of heat conduction and Cattaneo Christov heat flux. The results indicate that the thermal and concentration boundary layers are strongly influenced by the ferrohydrodynamic interaction parameter, angular velocity ratio, buoyancy ratio and nanoparticle characteristics. Tabular and graphical results are displayed to highlight the role of ferrite nanoparticles in enhancing heat and mass transfer in rotating cone flows.