Effect of Lorentz forces on forced-convection nanofluid flow over a stretched surface--颗粒学报PARTICUOLOGY

Sheikholeslami, M., Mustafa, M. T., & Ganji, D. D. (2016). Effect of Lorentz forces on forced-convection nanofluid flow over a stretched surface. Particuology, 26, 108-113. https://doi.org/10.1016/j.partic.2016.01.001

Effect of Lorentz forces on forced-convection nanofluid flow over a stretched surface

Mohsen Sheikholeslami ^a *, M.T. Mustafa ^b, Davood Domiri Ganji ^a

a Department of Mechanical Engineering, Babol University of Technology, Babol, Islamic Republic of Iran
b Department of Mathematics, Statistics and Physics, Qatar University, Doha 2713, Qatar

10.1016/j.partic.2016.01.001

Volume 26, June 2016, Pages 108-113

Received 7 January 2016, Accepted 26 January 2016, Available online 23 February 2016, Version of Record 18 April 2016.

E-mail: m_sh_3750@yahoo.com; mohsen.sheikholeslami@yahoo.com

Highlights

• Magnetic field effects on forced convection a nanofluid is considered.

• Effect of thermal radiation is studied.

• Skin friction coefficient increases with increase of magnetic parameter.

• Nusselt number increases with increase of velocity ratio parameter and temperature index.

• Nusselt number decreases with increase of magnetic and radiation parameters.

Abstract

Magnetic nanofluid hydrothermal analysis over a plate is studied that includes consideration of thermal radiation. The Runge–Kutta (RK4) method is utilized to get solution of ODEs which are obtained from similarity solution. In considering the impacts of Brownian motion, we applied Koo–Kleinstreuer–Li correlation to simulate the properties of CuO–water. The influence is discussed of important parameters such as the temperature index, magnetic, radiation, and velocity ratio parameters and volume fraction of nanoparticle on hydrothermal behavior. Results illustrate that the coefficient of skin friction enhances with enhancing magnetic parameter while reduces with enhancing velocity ratio parameter. Also the Nusselt number was found to directly depend on the velocity ratio and temperature index parameters but has an inverse dependence on the magnetic and radiation parameters.

Graphical abstract

Keywords

Nanofluid; Brownian motion; Thermal radiation; Magnetohydrodynamic; Stretching sheet

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