Magnetohydrodynamics (MHD) flow of ternary nanofluid and heat transfer past a permeable cylinder with velocity slip

Khashi'ie, Najiyah Safwa and Hussein, Umi Nadrah and Md Arifin, Norihan and Pop, Ioan (2024) Magnetohydrodynamics (MHD) flow of ternary nanofluid and heat transfer past a permeable cylinder with velocity slip. Chinese Journal of Physics, 93. pp. 328-339. ISSN 0577-9073

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Abstract

The increasing demand for energy-efficient and environmentally sustainable solutions has driven the exploration of ternary nanofluids for enhanced heat transfer applications. This numerical study investigates the magnetohydrodynamics (MHD) flow and heat transfer characteristics of a ternary hybrid nanofluid (copper-alumina-titania/water) over a shrinking/stretching cylinder, considering the effects of velocity slip, suction, and curvature parameters. The variable wall temperature is also included in the physical model. The model in PDEs is transformed into a simplified version of differential equations (ODEs) which can be solved using the bvp4c solver. Validation against previously published data confirms the accuracy of the model. Two solutions are possible if the shrinking surface is permeable (with suction effect), while only a unique solution is for the stretching case. Surprisingly, the copper-alumina-titania/water exhibits a lower heat transfer rate but higher skin friction as compared to the copper-alumina/water. Specifically, the heat transfer coefficient decreases by 5-10 % when incorporating the titania nanoparticle, while an increase of 8-12 % for the skin friction coefficient. Additionally, the velocity slip and curvature parameters accelerate the boundary layer separation, whereas increased suction delays this process. These findings provide insights into optimizing thermal management systems using ternary hybrid nanofluids, particularly under MHD effect.

Item Type:	Article
Uncontrolled Keywords:	Dual solutions, Heat transfer, Magnetic field, Shrinking cylinder, Ternary hybrid nanofluid, Velocity slip
Divisions:	Faculty Of Mechanical Technology And Engineering
Depositing User:	Sabariah Ismail
Date Deposited:	14 Mar 2025 11:31
Last Modified:	14 Mar 2025 11:31
URI:	http://eprints.utem.edu.my/id/eprint/28486
Statistic Details:	View Download Statistic

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