Iranian Nanotechnology Society International Journal of Nanoscience and Nanotechnology 1735-7004 11 4 2015 12 01 Analytical Investigation of MHD Jeffery–Hamel Nanofluid Flow in Non-Parallel Walls 241 248 16993 EN M. Sheikholeslami Department of Mechanical Engineering, Babol University of Technology, Babol, I. R. Iran H. Mollabasi Department of Civil Engineering, Babol University of Technology, Babol, I. R. Iran D. D. Ganji Department of Mechanical Engineering, Babol University of Technology, Babol, I. R. Iran Journal Article 2014 07 15 <em>In this paper, Homotopy perturbation method (HPM) has been applied to investigate the effect of magnetic field on Cu-water nanofluid flow in non-parallel walls. The validity of HPM solutions were verified by comparing with numerical results obtained using a fourth order Runge–Kutta method. Effects of active parameters on flow have been presented graphically. The results show that velocity in boundary layer thickness decreased with increase of Reynolds number and nanoparticle volume friction and increased with increasing Hartmann number.</em> nanofluid Magneto hydro dynamic Jeffery–Hamel flow Nonlinear Ordinary differential equation Homotopy Perturbation Method https://www.ijnnonline.net/article_16993_c5f31ecf4111f3bbfa2b36f851379d6e.pdf