Significance of Darcy–Forchheimer Law, Activation Energy, and Brownian Motion of Tiny Particles on the Dynamics of Rotating MHD Micropolar Nanofluid

Meznah M. Alanazi, Awatif A. Hendi, Bagh Ali (), Sonia Majeed, Ahmed Kadhim Hussein and Nehad Ali Shah ()
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Meznah M. Alanazi: Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
Awatif A. Hendi: Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
Bagh Ali: School of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen 518055, China
Sonia Majeed: Department of Mathematics, University of the Punjab, Lahore 54590, Pakistan
Ahmed Kadhim Hussein: Mechanical Engineering Department, College of Engineering, University of Babylon, Hilla 00964, Iraq
Nehad Ali Shah: Department of Mechanical Engineering, Sejong University, Seoul 05006, Republic of Korea

Mathematics, 2023, vol. 11, issue 4, 1-13

Abstract: The time-independent performance of a micropolar nanofluid under the influence of magneto hydrodynamics and the existence of a porous medium on a stretching sheet has been investigated. Nano-sized particles were incorporated in the base fluid because of their properties such as their extraordinary heat-enhancing ability, which plays a very important role in modern nanotechnology, cooling electronic devices, various types of heat exchangers, etc. The effects of Brownian motion and thermophoresis are accounted for in this comprehensive study. Using similarity conversion, the leading equations based on conservation principles are non-dimensionalized with various parameters yielding a set of ODEs. The numerical approach boundary value problem fourth-order method (bvp4c) was implemented as listed in the MATLAB computational tool. The purpose of this examination was to study and analyze the influence of different parameters on velocity, micro-rotation, concentration, and temperature profiles. The primary and secondary velocities reduced against the higher inputs of boundary concentration, rotation, porosity, and magnetic parameters, however, the base fluid temperature distribution grows with the increasing values of these parameters. The micro-rotation distribution increased against the rising strength of the Lorentz force and a decline is reported against the growing values of the micropolar material and rotational parameters.

Keywords: rotating frame; MHD; micropolar fluid; porous medium (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2023
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