Numerical investigation of melting heat transfer in magnetohydrodynamic flow of hybrid nanofluid (SWCNTs + Ag + Gasoline) over a non-uniform stretching sheet

Abstract

In this work, heat transfer in magnetohydrodynamic hybrid nanofluid flows over a stretching sheet with variable thicknessis examined. Factors such as viscous dissipation, magnetic field, melting and radiation heat are taken into account. Using similarity transformations, governing partial differential equations are transformed into ordinary differential equations. The resulting system of equations are solved by applying shooting method. Velocity and temperature profiles are examined numerically using MATLAB 9.14 as functions of various nondimensional parameters.Variations in skin friction, and Nusselt number are also discussed. The performance of the hybrid nanofluid and nanofluid concerning the base fluid are compared in this study. The effects of relevant parameters, such as volume fraction of nanoparticles, melting heat, velocity ratio, wall thickness, magnetic field, and radiation are numerically analyzed. Magnetic effects reveal significant influences, as the magnetic field increase, results in the minimization of the boundary layer thickness of the sheet. Increase in volume fraction of nano particles, enhances the heat transfer at the boundary.