Soret-Dufour effects on the waterbased hybrid nanofluid flow with nanoparticles of alumina and copper

Mat Isa, Siti Suziliana Puteri and Parvin, Shanaz and M. Arifin, Norihan and M. Ali, Fazilah and Ahmad, Kartini (2023) Soret-Dufour effects on the waterbased hybrid nanofluid flow with nanoparticles of alumina and copper. Malaysian Journal of Mathematical Sciences, 17 (3). pp. 283-304. ISSN 1823-8343 E-ISSN 2289-750X

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Abstract

The two-dimensional mathematical model of water-based hybrid nanofluid, where the nanoparticles of the model are alumina (Al2O3) and copper (Cu) is analyzed in this article. It describes the heat and mass transfer which are induced by concentration and temperature differences, respectively. The current mathematical model extended the works by implementing both directions of moving sheet in the boundary conditions: stretching and shrinking, and use the exponential variations of the sheet velocity, temperature, and concentration of the hybrid nanofluid at the sheet. The final numerical solutions can be obtained by implementing Matlab bvp4c, which involves the step of choosing the most reliable solution in an actual fluid situation. This selection technique on numerical solutions is known as stability analysis and only needs to apply when more than one numerical solution appears in the Matlab bvp4c program. Finally, the controlling parameters such as nanoparticle solid volume fraction, suction, shrinking/stretching, Soret and Dufour cause an increment or decrement in the flow, heat and mass transfer in the hybrid nanofluid. For the stable solution, fluid velocity becomes slower whereas temperature and concentration of the fluid increase when the percentage of Cu, as well as Al2O3, rises into the water. Moreover, in case of local Nusselt number and local Sherwood number it is proved that Soret effect is the opposite phenomenon of Dufour effect.

Item Type:	Article (Journal)
Uncontrolled Keywords:	hybrid nanofluid; alumina, copper; Soret and Dufour effects; viscous dissipation; Matlab bvp4c; stability analysis.
Subjects:	Q Science > QA Mathematics Q Science > QA Mathematics > QA297 Numerical Analysis T Technology > TA Engineering (General). Civil engineering (General) > TA329 Engineering mathematics. Engineering analysis T Technology > TA Engineering (General). Civil engineering (General) > TA349 Mechanics of engineering. Applied mechanics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Science
Depositing User:	dr kartini ahmad
Date Deposited:	22 Sep 2023 09:28
Last Modified:	22 Feb 2024 15:54
URI:	http://irep.iium.edu.my/id/eprint/106946

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