Magnetohydrodynamic convective flow of radiating nanofluid past a stretching surface in presence of heat source/sink

An examination is made to study the upshots of an unsteady MHD radiating nanofluid past a stretching sheet taking into account the heat source/sink. The transport model employed includes the effects of Brownian motion and thermophoresis. Nanofluids revolutionize the industrial world now-a-days for its great energy transferring property. The particle dispersion called Brownian motion and thermophoresis effect plays a vital role in this problem. The unsteadiness in the flow field is because of the time dependence of the stretching velocity, free stream velocity and the surface temperature. The dimensional boundary layer equations of motion, energy and species are transformed into dimensionless equations using time dependent similarity parameter. The ordinary differential equations are then solved numerically using Runge-Kutta scheme along with shooting technique. The effects of various physical parameters on the velocity, temperature and concentration as well as skin-friction coefficient, Nusselt number and Sherwood number are computed numerically and presented graphically. A comparative study between the previous published and present results in a limiting sense is found in an excellent agreement. The recent advancements in the research of thermophoresis paves way in fascinating perspectives to exploit thermophoresis as a novel tool in macromolecular fractionation, micro-fluidic manipulation, and selective tuning of colloidal structures.