Radiation heat transfer on SWCNT and MWCNT based magnetohydrodynamic nanofluid flow with marangoni convection

Abstract

In this analysis, a computational study is performed to discuss the two-dimensional, steady, incompressible, magnetohydrodynamic CNT-water nanofluid flow along with impacts of thermal radiation, Marangoni convection, viscous dissipation and Joule heating. Single wall carbon nanotube and multiple wall carbon nanotube are taken into account. Problem is modeled and then solved by applying the Galerkin finite element method. Results on velocity and temperature distributions for influences of suction parameter, exponent constant, solid volume fraction, magnetic parameter, radiation parameter and Brinkmann number are plotted and physical aspects are discussed. Furthermore, effects of embedded parameters on local Nusselt number are derived and given in tabular form. It is observed that the higher suction of fluid reduces the velocity field, temperature field and the surface heat flux. Also, the temperature of fluid and the heat transfer rate enlarged for higher nanoparticle volume fraction, magnetic parameter, radiation parameter and Brikmann number, while opposite is noted in the fluid flow for higher solid volume fraction and magnetic parameter.