Analytical investigation of MHD nanofluid flow in non-parallel walls

In this paper, magneto-hydrodynamic (MHD) Jeffery–Hamel nanofluid flow in non-parallel walls is investigated analytically using different analytical methods. Different base fluids and nanoparticle are used. The effective thermal conductivity and viscosity of nanofluid are calculated by the Maxwell–Garnetts (MG) and Brinkman models, respectively. Comparison between Differential Transformation Method (DTM), DTM–Padé and Least square method (LSM) show that LSM is more accurate than other methods. The influence of the nanofluid volume friction, Reynolds number, Hartmann number and Angle of the channel on velocity profiles are investigated. Also it can be found that skin friction coefficient is an increasing function of Reynolds number, opening angle and nanoparticle volume friction but a decreasing function of Hartmann number.

Nanofluid Magneto-hydrodynamic DTM–Padé approximation Least Square Method Jeffery–Hamel flow