Magnetohydrodynamics mixed convection on the open enclosure in a horizontal channel with partial bottom heating

Mohammad Zamri, Amir Farhan and Mohamad Asimoni, Nor Raihan and Shafie, Sharidan (2026) Magnetohydrodynamics mixed convection on the open enclosure in a horizontal channel with partial bottom heating. Paper Asia, 42 (3b). pp. 488-496. ISSN 0218-4540

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Abstract

A numerical simulation study of laminar nanofluid flow in a channel with an open cavity. The bottom of the heated wall is partially heated, and its length remains constant, under the effects of magnetohydrodynamics (MHD), heat generation/absorption, and chemical reaction. With all walls presumed to be insulated aside from the heated wall at the cavity's bottom, the nanofluid enters the horizontal channel at constant velocity, low concentration, and cool temperature. Dimensionless equations are solved using automated solution methods, FEniCS employing the finite element method. The Richardson number (Ri), Reynolds number (Re), and Prandtl number (Pr) are maintained constant at Ri = 1.0, Re = 100, and Pr = 1.4, respectively. The findings indicate that increasing the magnetic effect (M) can decrease the velocity profile and improve heat transfer. As the magnetic effect increases, both heat and mass transfer are enhanced. Increasing the heat generation/absorption parameter (Q) causes the temperature profile to exhibit an increasing trend. In addition, an increase in the chemical reaction parameter (κ) causes a decline in the concentration profile but has a less significant impact on the velocity and temperature profiles.

Item Type:	Article (Journal)
Uncontrolled Keywords:	Magnetohydrodynamics, Nanofluid, Laminar flow, FeniCS
Subjects:	Q Science > QA Mathematics > QA297 Numerical Analysis
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science Kulliyyah of Science > Department of Computational and Theoretical Sciences
Depositing User:	DR NOR RAIHAN MOHAMAD ASIMONI
Date Deposited:	14 Jul 2026 13:02
Last Update:	14 Jul 2026 13:02
Queue Number:	2026-07-Q4125
URI:	http://irep.iium.edu.my/id/eprint/129854

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