Unsteady transport phenomena of hybrid Al2O3-Cu/H2O nanofluid past a shrinking slender cylinder

Nurul Amira Zainal, and Roslinda Nazar, and Kohilavani Naganthran, and Pop, Ioan (2021) Unsteady transport phenomena of hybrid Al2O3-Cu/H2O nanofluid past a shrinking slender cylinder. Sains Malaysiana, 50 (12). pp. 3753-3764. ISSN 0126-6039


Official URL: https://www.ukm.my/jsm/malay_journals/jilid50bil12...


Theoretical investigations of unsteady boundary layer flow gain interest due to its relatability to practical settings. Thus, this study proposes a unique mathematical model of the unsteady flow and heat transfer in hybrid nanofluid past a permeable shrinking slender cylinder. The suitable form of similarity transformations is adapted to simplify the complex partial differential equations into a solvable form of ordinary differential equations. A built-in bvp4c function in MATLAB software is exercised to elucidate the numerical analysis for certain concerning parameters, including the unsteadiness and curvature parameters. The bvp4c procedure is excellent in providing more than one solution once sufficient predictions are visible. The present analysis further observed dual solutions that exist in the system of equations. Notable findings showed that by increasing the nanoparticles volume fraction, the skin friction coefficient increases in accordance with the heat transfer rate. In contrast, the decline of the unsteadiness parameter demonstrates a downward trend toward the heat transfer performance.

Item Type:Article
Keywords:Dual solutions; Hybrid nanofluid; Shrinking cylinder; Unsteady flow
Journal:Sains Malaysiana
ID Code:18341
Deposited By: ms aida -
Deposited On:04 Apr 2022 01:27
Last Modified:11 Apr 2022 04:53

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