D. D. Ganji is a Professor of Mechanical Engineering and the Director of the Graduate Program at Babol Noshirvani University of Technology in Iran, as well as a consultant in nonlinear dynamics and the Dean of the National Elite Foundation of Iran. He has a Ph.D. in Mechanical Engineering from Tarbiat Modarres University. He is the Editor-in-Chief of International Journal of Nonlinear Dynamic and Engineering Science, and Editor of International Journal of Nonlinear Sciences and Numerical Simulation and International Journal of Differential Equations.Amir Malvandi is working as an associate researcher at Sun & Air research institute (SARI) in Ferdowsi university of Mashhad, Iran. He Received his B.S. in mechanical engineering from this university in 2009 and graduated from Amirkabir University of Technology in 2012. His main areas of research are fluid flow and heat transfer in curved pipes, numerical study on the flow over bluff bodies, Homogeneous and non-Homogenous nanofluid and convective heat transfer.