Impact of Radiation and Slip Conditions on MHD Flow of Nanofluid Past an Exponentially Stretched Surface

TL;DR

This study investigates how magnetic fields, radiation, slip conditions, and nanofluid properties influence heat and mass transfer in MHD flow over an exponentially stretched surface, using numerical methods.

Contribution

It introduces a comprehensive analysis of nanofluid flow with slip and radiation effects over an exponentially stretching sheet, including SWCNTs and MWCNTs, using advanced numerical techniques.

Findings

SWCNTs increase skin friction and heat transfer rate more than MWCNTs.

Temperature rises with magnetic parameter, decreases with thermal slip.

Magnetic field and slip conditions significantly affect heat and momentum transfer.

Abstract

The current research establishes magnetohydrodynamics (MHD) boundary layer flow with heat and mass transfer of a nanofluid over an exponentially extending sheet embedded in a porous medium. During this exploration, nanoparticles, single-wall carbon nanotubes (SWCNTs) and multi-wall carbon nanotubes (MWCNTs) are recruited, while lamp fuel oil is being utilised as a base fluid for the diffusion of nano materials. The effects of warm radiation and an inclined magnetic field are included. In addition, rather than no-slip assumptions at the surface, velocity slides as well as thermal upsurge are incorporated in this study. Similarity transformations are implemented to adapt a set of partial differential equations into a system of non-linear ordinary differential equations. The bvp4c solver and Keller-box approach are employed to tackle nonlinear ordinary differential equations numerically. The significance of prominent parameters such as the Darcy Forchheimer model, magnetic field, radiation, suction, velocity slip, and temperature jump is visually probed and addressed in depth. In fact, the evolution of the coefficient of skin friction and percentage of heat shipping (Nusselt number) for both SWCNTs and MWCNTs is presented in tabular form. The temperature goes up as the magnetic parameter rises. Temperature has been seen to be decreased as the thermal slip parameter is improved. The results indicate that SWCNTs yield a higher coefficient of skin friction and speed of heat transformation than MWCNTs.