MHD hybrid nanofluid flow with convective heat transfer over a permeable stretching/shrinking surface with radiation

Wahid, Nur Syahirah and Md Arifin, Norihan and Khashi’ie, Najiyah Safwa and Pop, Ioan Mihai and Bachok, Norfifah and Hafidzuddin, Ezad Hafidz (2022) MHD hybrid nanofluid flow with convective heat transfer over a permeable stretching/shrinking surface with radiation. International Journal of Numerical Methods for Heat and Fluid Flow, 32 (5). pp. 1706-1727. ISSN 0961-5539

Text WAHID ET AL. 2022-HFF.PDF Restricted to Registered users only Download (824kB)

Abstract

Purpose: The purpose of this paper is to numerically investigate the hybrid nanofluid flow with the imposition of magnetohydrodynamic (MHD) and radiation effects alongside the convective boundary conditions over a permeable stretching/shrinking surface. Design/methodology/approach: The mathematical model is formulated in the form of partial differential equations (PDEs) and are then transformed into the form of ordinary differential equations (ODEs) by using the similarity variables. The deriving ODEs are solved numerically by using the bvp4c solver in MATLAB software. Stability analysis also has been performed to determine the stable solution among the dual solutions obtain. For method validation purposes, a comparison of numerical results has been made with the previous studies. Findings: The flow and the heat transfer of the fluid at the boundary layer are described through the plot of the velocity profile, temperature profile, skin friction coefficient and local Nusselt number that are presented graphically. Dual solutions are obtained, but only the first solution is stable. For the realizable solution at the shrinking surface, the proliferation of nanoparticle volume fraction (copper) and magnetic (magnetohydrodynamics) parameters can impede the boundary layer separation. Also, Biot number could enhance the temperature profile and the heat transfer rate at the shrinking surface region. The incrementation of 0.1% of Biot number has enhanced the heat transfer rate by approximately 0.1% and the incrementation of 0.5% volume fraction for copper has reduced the heat transfer rate by approximately 0.17%. Originality/value: The presented model and numerical results are original and new. It can be used as a future reference for further investigation and related practical application. The main contribution of this investigation includes giving the initial prediction and providing the numerical data for the other researchers for their future reference regarding the impacts of nanoparticles volumetric concentration towards the main physical quantities of interest in the presence of magnetic and radiation parameters with the convective boundary conditions.

Item Type:	Article
Uncontrolled Keywords:	Magnetic field, Convective boundary condition, Dual solutions, Stretching/shrinking surface, Hybrid nanofluid, Biot number
Divisions:	Faculty of Mechanical and Manufacturing Engineering Technology
Depositing User:	mr eiisaa ahyead
Date Deposited:	23 Feb 2023 16:43
Last Modified:	23 Feb 2023 16:43
URI:	http://eprints.utem.edu.my/id/eprint/26352
Statistic Details:	View Download Statistic

Actions (login required)

View Item