Combined effects of thermal radiation and Hall current on MHD free-convective flow and mass transfer over a stretching sheet with variable viscosity

TL;DR

This paper investigates the combined influence of thermal radiation, Hall current, and variable viscosity on MHD free-convective flow and mass transfer over a stretching sheet, using numerical methods to solve the resulting equations.

Contribution

It introduces a novel analysis of the effects of thermal radiation and Hall current on variable viscosity MHD flow over a stretching sheet, with numerical solutions validated against existing literature.

Findings

Thermal radiation and Hall current significantly affect flow and heat transfer.

Variable viscosity impacts the velocity and temperature profiles.

Numerical results agree well with previous studies.

Abstract

An analysis has been investigated for the effects of thermal radiation and Hall current on magnetohydrodynamic free-convective flow and mass transfer over a stretching sheet with variable viscosity in the presence of heat generation/absorption. The fluid viscosity is assumed to vary as an inverse linear function of temperature. The boundary-layer equations governing the flow problem under consideration have been reduced to a system of non-linear ordinary differential equations by employing a similarity transformation. Using the finite difference scheme, numerical solutions to the transform ordinary differential equations have been solved and the results that obtained are presented graphically. With an aim to test the accuracy, the numerical results have been compared with the existing scientific literature and found excellent agreement.