Nanofluid Flow On A Shrinking Cylinder With Al2O3 Nanoparticles

Ishak, Anuar and Waini, Iskandar and Pop, Ioan Mihai (2021) Nanofluid Flow On A Shrinking Cylinder With Al2O3 Nanoparticles. Mathematics, 9 (14). pp. 1-13. ISSN 2227-7390

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Abstract

This study investigates the nanofluid flow towards a shrinking cylinder consisting of Al2O3 nanoparticles. Here, the flow is subjected to prescribed surface heat flux. The similarity variables are employed to gain the similarity equations. These equations are solved via the bvp4c solver. From the findings, a unique solution is found for the shrinking strength λ ≥ −1. Meanwhile, the dual solutions are observed when λc < λ < −1. Furthermore, the friction factor Re1/2 x Cf and the heat transfer rate Re−1/2 x Nux increase with the rise of Al2O3 nanoparticles ϕ and the curvature parameterγ. Quantitatively, the rates of heat transfer Re−1/2 x Nux increase up to 3.87% when ϕ increases from 0 to 0.04, and 6.69% when γ increases from 0.05 to 0.2. Besides, the profiles of the temperature θ(η) and the velocity f 0 (η) on the first solution incline for larger γ, but their second solutions decline. Moreover, it is noticed that the streamlines are separated into two regions. Finally, it is found that the first solution is stable over time.

Item Type:	Article
Uncontrolled Keywords:	Heat transfer, prescribed heat flux, similarity solutions, dual solutions, stability analysis
Divisions:	Faculty of Mechanical and Manufacturing Engineering Technology
Depositing User:	Norfaradilla Idayu Ab. Ghafar
Date Deposited:	06 May 2022 09:50
Last Modified:	06 May 2022 09:50
URI:	http://eprints.utem.edu.my/id/eprint/25907
Statistic Details:	View Download Statistic

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