Mathematical solution on MHD stagnation point flow of ferrofluid

Siti Hanani, Mat Yasin and Muhammad Khairul Anuar, Mohamed and Zulkhibri, Ismail and Mohd Zuki, Salleh (2020) Mathematical solution on MHD stagnation point flow of ferrofluid. Defect and Diffusion Forum, 399. pp. 38-54. ISSN 1662-9507

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This study presents a numerical investigation on Magnetohydrodynamic (MHD) stagnation point flow of ferrofluid with Newtonian heating. The black oxide of iron, magnetite (Fe3O4) as magnetic materials and water as a base fluid are considered. The two dimensional stagnation point flow of cold ferrofluid against a hot wall under the influence the uniform magnetic field of strength located some distance behind the stagnation point. The effect of magnetic and volume fraction on the velocity and temperature boundary layer profiles are will be obtained with formulated the governing equations. The governing equations which is in the form of dimensional non-linear partial differential equations are reduced to dimensionless non-linear ordinary differential equations by using appropriate similarity transformation. Then, solved numerically by using Keller-box method which programmed in Matlab software. It is found the cold fluid moves towards the source of magnetic close to the hot wall which can lead the better cooling rate and enhance the heat transfer rate. Meanwhile, an increase the volume fraction of magnetite nanoparticles, increase the ferrofluid capabilities in thermal conductivity and consequently enhance the heat transfer.

Item Type: Article
Uncontrolled Keywords: Ferrofluid, Keller-Box Method, Magnetohydrodynamic, Newtonian Heating
Subjects: T Technology > T Technology (General)
Faculty/Division: Faculty of Industrial Sciences And Technology
Institute of Postgraduate Studies
Depositing User: Pn. Hazlinda Abd Rahman
Date Deposited: 17 Dec 2019 01:45
Last Modified: 24 Mar 2021 04:29
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