On extended version of Yamada–Ota and Xue models in micropolar fluid flow under the region of stagnation point

Nadeem Abbas, S. Nadeem and M.Y. Malik

Physica A: Statistical Mechanics and its Applications, 2020, vol. 542, issue C

Abstract: In this study, a steady flow of micropolar hybrid nanofluid over permeable curved exponentially stretching channel surface has been analyzed. We also discussed the two models of hybrid nanofluid named as Yamada and Ota model and Xue model. The systems of governing partial differential equations are converted into a system of non dimensional ordinary differential equations by applying the suitable similarity transformation. The dimensionless form of the ordinary differential equations is solved through numerical technique via bvp4c method. The impacts of physical parameters which involve in ordinary differential equations are highlighted through graphs while skin friction, couple stress and Nusselt numbers are highlighted through Tables. Our interest of study is to be analyzed about the heat transfer rate of micropolar hybrid nanofluid with hybrid nanofluid of Y–O model and Xue model. The comparison with the existence literature has been worked and it is revealed to be good agreement. Surprisingly, the Yamada and Ota model of the Hybrid nanofluid gain high than Xue model of the hybrid nanofluid on the temperature profile. In the both cases, the injection parameter (γ>0) gains higher thermal boundary layer thickness than that of suction parameter (γ<0). It is noted that the Res1∕2Cf having opposite behavior to note for the Res1∕2Nus and Res1∕2Cm for the both cases of Cu−Al2O3∕H2O and Cu∕H2O. The present analysis gives a good agreement with the decay.

Keywords: Micropolar hybrid nanofluid; Thermal slip effects; Exponential stretching; Numerical technique; Curved channel (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:542:y:2020:i:c:s0378437119319594

DOI: 10.1016/j.physa.2019.123512

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