Magnetite micropolar nanofluid non-aligned MHD flow with mixed convection

• Published in: European physical journal plus Vol. 132; no. 6; p. 275
• Main Authors: Tabassum, Rabil, Mehmood, R., Akbar, N. S.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.06.2017; Springer Nature B.V
• Subjects: Applied and Technical Physics; Atomic; Chemical reactions; Complex Systems; Condensed Matter Physics; Convection; Field strength; Flow profiles; Flow velocity; Fluids; Heat flux; Heat transfer; Investigations; Iron oxides; Magnetic fields; Magnetic properties; Magnetite; Magnetohydrodynamic flow; Mathematical and Computational Physics; Molecular; Nanofluids; Nanoparticles; Optical and Plasma Physics; Parameters; Physics; Physics and Astronomy; Radiation; Regular Article; Shear stress; Temperature distribution; Theoretical; Velocity distribution
• ISSN: 2190-5444; 2190-5444
• DOI: 10.1140/epjp/i2017-11537-2

. The magnetite micropolar nanofluid ( Fe 3 O 4 /water) oblique flow in the presence of mixed convection and magnetic field is considered in the present investigation. Magnetite nanoparticles are added to water in order to examine the temperature and velocity characteristics of the flow. Appropriate transformations are employed to obtain the governing equations. Numerical solutions are attained by the Range-Kutta-Fehlberg integration scheme with the shooting method. Characteristics of flow velocity profiles, temperature distribution, micro-rotation, shear stress and heat flux are remarkably influenced by magnetic parameter, magnetite nanoparticles volume fraction and mixed convection parameter. The obtained results indicate that the shear stress at the wall decreases but the local heat flux increases with increase in the nanoparticles volume fraction. Moreover, an increase in the magnetic field strength consequently enhances the shear stress at the surface but decreases the local heat transfer rate at the surface.