4.7 Article

Magnetic Impact on the Unsteady Separated Stagnation-Point Flow of Hybrid Nanofluid with Viscous Dissipation and Joule Heating

期刊

MATHEMATICS
卷 10, 期 13, 页码 -

出版社

MDPI
DOI: 10.3390/math10132356

关键词

MHD; unsteady flow; hybrid nanofluid; viscous dissipation; Joule heating

资金

  1. Universiti Kebangsaan Malaysia [GUP-2019-034]

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In this study, the impact of magnetic field on the unsteady separated stagnation-point flow of hybrid nanofluid is numerically investigated, taking into account viscous dissipation and Joule heating. A new mathematical model for hybrid nanofluid is developed, and similarity solutions in the form of ordinary differential equations are obtained. The findings show that the skin friction coefficient and heat transfer rate of the fluid increase with the nanoparticle volume fraction and unsteadiness parameter. The magnetic and acceleration parameters also have a significant effect on the heat transfer performance.
The behaviour of magnetic impact on the unsteady separated stagnation-point flow of hybrid nanofluid with the influence of viscous dissipation and Joule heating is investigated numerically in this study. A new mathematical hybrid nanofluid model is developed, and similarity solutions are obtained in the form of ordinary differential equations (ODEs). The bvp4c approach in MATLAB is used to determine the reduced ODEs' estimated solutions. The influence of various physical parameters is scrutinised. The findings revealed that the skin friction coefficient increases with the increment of the nanoparticle volume fraction and the unsteadiness parameter. This observation is also applied to the heat transfer rate of the fluid. Additionally, the presence of the magnetic and acceleration parameter provides a significant result in the heat transfer performance. The addition of the Eckert number increased the temperature profile distribution, thereby spontaneously decreasing the heat transfer rate. The first solution is declared stable by the analysis of solution stability.

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