Numerical simulation of magnetohydrodynamic Jeffrey nanofluid flow and heat transfer over a stretching sheet considering Joule heating and viscous dissipation

The purpose of the present study is to numerically examine the impact of silver, titanium oxide and alumina nanoparticles on the steady 2D magnetohydrodynamic boundary layer flow and heat transfer of Jeffrey fluid over a stretching sheet with Joule heating and viscous dissipation. The governing non-linear partial differential equations (PDEs) are reduced to the non-linear ordinary differential equations (ODEs) by using some appropriate dimensionless variables and then solved numerically by using the Keller-box technique. The impacts of nanoparticle volume fraction, magnetic parameter, Deborah number, Prandtl number and Eckert number on the velocity and temperature profiles, local Nusselt number and skin friction are investigated through graphs and tables. The results indicate that the silver-water nanofluid has comparatively less velocity, skin friction and local Nusselt number than those of the base fluid. However the temperature is enhanced due to the inclusion of the nanoparticles. Furthermore, it is concluded that both the skin friction and the Nusselt number are increased by increasing the Deborah number whereas these are decreased by increasing the magnetic parameter. (C) 2018 Author(s).