Effect of Variable Properties on Heat and Mass Transfer Flow of Nanofluid over a Vertical Cone Saturated by Porous Medium under Enhanced Boundary Conditions

摘要

We have investigated the impact of variable viscosity and thermal conductivity on MHD boundary layer flow, heat and mass transfer of nanofluid over a vertical cone saturated by porous medium with thermal radiation and chemical reaction. Further, the viscosity and thermal conductivity are considered as the function of nanoparticle volume fraction (Φ). By using suitable similarity variables the governing equations represents the velocity, temperature and volume fraction of nanoparticles are transformed into the set of ordinary differential equations. These equations together with associated boundary conditions are solved numerically by using an optimized, extensively validated, variational Finite element method. Effects of different parameters such as variable viscosity, Buoyancy, magnetic, radiation, variable thermal conductivity, thermophoresis, Brownian motion, Lewis number and chemical reaction parameters on velocity, temperature and concentration profiles are examined and the results are presented in graphical from. Furthermore, the skin-friction coefficient, Nusselt number and Sherwood number are also investigated and are shown in tabular form.