Numerical investigation of nanofluid melting heat transfer between two pipes

CuO-water nanofluid melting heat transfer between two circular cylinders is studied in existence of horizontal magnetic field. Effect of various shapes of nanoparticles on nanofluid properties is considered. The KKL model is utilized for estimating viscosity of nanofluid. Runge-Kutta integration scheme is selected for solving ODEs. Numerical procedures are examined for various active parameters namely shapes of nanoparticle, melting parameter (delta), Hartmann number (Ha), Eckert number (Ec) and Reynolds number (Re). Results show that temperature gradient increases with increase in Hartmann number but it decreases with increase in melting parameter. Velocity reduces with rise of Lorentz forces and melting parameter but it increases with increase in Reynolds number. (C) 2017 Faculty of Engineering, Alexandria University. Production and hosting by Elsevier B.V.