Shape Effect of Nanosize Particles on Magnetohydrodynamic Nanofluid Flow and Heat Transfer over a Stretching Sheet with Entropy Generation

Magnetohydrodynamic nanofluid technologies are emerging in several areas including pharmacology, medicine and lubrication (smart tribology). The present study discusses the heat transfer and entropy generation of magnetohydrodynamic (MHD) Ag-water nanofluid flow over a stretching sheet with the effect of nanoparticles shape. Three different geometries of nanoparticles—sphere, blade and lamina—are considered. The problem is modeled in the form of momentum, energy and entropy equations. The homotopy analysis method (HAM) is used to find the analytical solution of momentum, energy and entropy equations. The variations of velocity profile, temperature profile, Nusselt number and entropy generation with the influences of physical parameters are discussed in graphical form. The results show that the performance of lamina-shaped nanoparticles is better in temperature distribution, heat transfer and enhancement of the entropy generation.

[1]  Kalidas Das,et al.  On the heat transport mechanism and entropy generation in a nozzle of liquid rocket engine using ferrofluid: A computational framework , 2019, J. Comput. Des. Eng..

[2]  Davood Domiri Ganji,et al.  An analytical study on entropy generation of nanofluids over a flat plate , 2013 .

[3]  M. Govindaraju,et al.  Analysis of Slip MHD Nanofluid Flow on Entropy Generation in a Stretching Sheet , 2015 .

[4]  A. Pandey,et al.  MHD flow of Ag-water nanofluid over a flat porous plate with viscous-Ohmic dissipation, suction/injection and heat generation/absorption , 2017, Alexandria Engineering Journal.

[5]  M. Aguiar,et al.  Synthesis and Characterization of Silver Nanoparticles , 2014 .

[6]  A. Ibrahim,et al.  Impacts of Nanoparticle Shape on Al2O3-Water Nanofluid Flow and Heat Transfer over a Non-Linear Radically Stretching Sheet , 2020, Advances in Nanoparticles.

[7]  Stephen U. S. Choi.  Enhancing thermal conductivity of fluids with nano-particles , 1995 .

[8]  Davood Domiri Ganji,et al.  Magnetic field effect on nanofluid flow and heat transfer using KKL model , 2014 .

[9]  Hamza Berrehal,et al.  Entropy generation analysis for multi-walled carbon nanotube (MWCNT) suspended nanofluid flow over wedge with thermal radiation and convective boundary condition , 2019, Journal of Mechanical Science and Technology.

[10]  A. K. Abdul Hakeem,et al.  Entropy generation analysis of magneto hydrodynamic flow of a nanofluid over a stretching sheet , 2015 .

[11]  N. Ali,et al.  Unsteady MHD flow and heat transfer on a stretching sheet in a rotating fluid , 2010 .

[12]  T. Ko,et al.  Numerical investigation on developing laminar forced convection and entropy generation in a wavy channel , 2007 .

[13]  M. Atashafrooz.  Effects of Ag-water nanofluid on hydrodynamics and thermal behaviors of three-dimensional separated step flow , 2018, Alexandria Engineering Journal.

[14]  Shafiq Ahmad,et al.  A Numerical Simulation of Silver-Water Nanofluid Flow with Impacts of Newtonian Heating and Homogeneous-Heterogeneous Reactions Past a Nonlinear Stretched Cylinder , 2019, Symmetry.

[15]  Oluwole Daniel Makinde,et al.  Analysis of entropy generation in a variable viscosity fluid flow between two concentric pipes with a convective cooling at the surface , 2011 .

[16]  Sohail Nadeem,et al.  Numerical study of MHD boundary layer flow of a Maxwell fluid past a stretching sheet in the presence of nanoparticles , 2013 .

[17]  Saeed Zeinali Heris,et al.  Analysis of entropy generation between co-rotating cylinders using nanofluids , 2012 .

[18]  Analysis of entropy generation for nanofluid flow over a stretching sheet with an inclined magnetic field and uniform heat source/sink , 2018, Journal of Physics: Conference Series.

[19]  A. Aghaei,et al.  Analytical study of parameters affecting entropy generation of nanofluid turbulent flow in channel and micro-channel , 2016 .

[20]  Ronald M. Barron,et al.  Effect of a magnetic field on free convection in a rectangular enclosure , 1995 .

[21]  C. Y. Wang,et al.  Free convection on a vertical stretching surface , 1989 .