Unsteady MHD rear stagnation-point flow of a hybrid nanofluid with heat generation/absorption effect

Nazar, Roslinda and Zainal, Nurul Amira and Naganthran, Kohilavani (2021) Unsteady MHD rear stagnation-point flow of a hybrid nanofluid with heat generation/absorption effect. Journal of Advanced Research In Fluid Mechanics And Thermal Sciences, 87 (1). pp. 41-51. ISSN 2289-7879

Text UNSTEADY MHD REAR STAGNATION-POINT FLOW OF A HYBRID NANOFLUID WITH HEAT GENERATIONABSORPTION EFFECT.PDF Download (726kB)

Abstract

The study of unsteady flow is essential in various engineering systems, for instance, the periodic fluid motion and start-up process. Therefore, this numerical study focuses on examining the unsteady magnetohydrodynamics (MHD) rear stagnation-point flow in Al2O3-Cu/H2O hybrid nanofluid past a permeable stretching/shrinking surface with the impact of heat generation/absorption. By choosing a suitable similarity transformation, partial differential equations are transformed into a system of nonlinear ordinary differential equations and solved using the bvp4c function in the MATLAB package. The effects of the solution domain’s operating parameters are analyzed, and dual solutions are observable as the sheet shrinks. It is found that the addition of the suction parameter escalates the heat transfer efficiency. Eventually, the existence of the unsteadiness parameter and the heat generation/absorption effect significantly encourage heat transfer deterioration.

Item Type:	Article
Uncontrolled Keywords:	Dual solutions, Hybrid nanofluid, MHD, Rear stagnation point, Unsteady flow
Divisions:	Faculty of Mechanical and Manufacturing Engineering Technology
Depositing User:	Sabariah Ismail
Date Deposited:	14 Apr 2022 15:52
Last Modified:	14 Apr 2022 15:52
URI:	http://eprints.utem.edu.my/id/eprint/25880
Statistic Details:	View Download Statistic

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