Numerical analysis of thermal behaviour on MHD hybrid nanofluid flow over a radially convective stretching surface

Abstract

Incorporation of viscous dissipation and convective thermal exchange collectively enhances the performance and ensures high product quality in industrial processes like polymer extrusion. The current study examines the time-dependent movement and thermal characteristics of an electrically conducting hybrid nanofluid (Au-Cu/H₂O) over a surface stretching radially in a porous medium, accounting for slip and dissipation due to friction. The analysis considers the influence of heat source and heat convection at the boundary. The flow-controlling partial differential equations are converted to ordinary differential equations by incorporating similarity transformations. Using the MATLAB bvp4c solver, a numerical solution for velocity and temperature distribution is obtained. The advantages of the current model include improved cooling efficiency, reduced risk of overheating, and energy conservation. The present research shows significant consistency with previous research. The notable observations of this study indicate that velocity slip, magnetic parameter, and porosity characteristics tend to reduce velocity distributions. Higher values of the Biot number, magnetic field, and Eckert number lead to improved thermal dispersions. In addition to this numerical technique, we leverage a statistical technique involving multiple linear regression analysis to examine thermal transfer and the skin friction coefficient.