VIM solution of squeezing MHD nanofluid flow in a rotating channel with lower stretching porous surface

A new analytical approach has been performed by using both similarity transformation and Variational Iteration Method (VIM) on the silver, copper, copper oxide, titanium oxide and aluminum oxide nanofluids flowing through a rotating channel with lower stretching porous wall under the squeezing magneto hydrodynamic (MHD) flow conditions. The effects of nanoparticles concentration, characteristic parameter of the flow, suction parameter and magnetic parameter are investigated on the velocity profiles and the shear stresses at lower and upper walls. The results show significant influence of nanoparticle additives on the shear stress and skin friction coefficient of the flow at the walls. The analytical results are compared with those obtained by numerical solution and remarkable agreement is achieved. (C) 2015 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.