Oblique stagnation-point flow past a shrinking surface in a Cu-Al2O3/H2O hybrid nanofluid

Rusya Iryanti Yahaya, and Norihan Md Arifin, and Roslinda Mohd. Nazar, and Pop, Ioan (2021) Oblique stagnation-point flow past a shrinking surface in a Cu-Al2O3/H2O hybrid nanofluid. Sains Malaysiana, 50 (10). pp. 3139-3152. ISSN 0126-6039

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Official URL: https://www.ukm.my/jsm/malay_journals/jilid50bil10...

Abstract

To fill the existing literature gap, the numerical solutions for the oblique stagnation-point flow of Cu-Al2O3/H2O hybrid nanofluid past a shrinking surface are computed and analyzed. The computation, using similarity transformation and bvp4c solver, results in dual solutions. Stability analysis then shows that the first solution is stable with positive smallest eigenvalues. Besides that, the addition of Al2O3 nanoparticles into the Cu-H2O nanofluid is found to reduce the skin friction coefficient by 37.753% while enhances the local Nusselt number by 4.798%. The increase in the shrinking parameter reduces the velocity profile but increases the temperature profile of the hybrid nanofluid. Meanwhile, the increase in the free parameter related to the shear flow reduces the oblique flow skin friction.

Item Type:Article
Keywords:Dual solutions; Hybrid nanofluid; Oblique stagnation-point; Shrinking surface; Stability analysis
Journal:Sains Malaysiana
ID Code:18183
Deposited By: ms aida -
Deposited On:03 Mar 2022 03:33
Last Modified:07 Mar 2022 03:32

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