Hall current, Newtonian heating and second-order slip effects on convective magneto-micropolar fluid flow over a sheet

Muhammad Kamran, Benchawan Wiwatanapataphee () and Kuppalapalle Vajravelu ()
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Muhammad Kamran: Department of Mathematics and Statistics, Curtin University of Technology, GPO Box U1987, Perth, Australia
Benchawan Wiwatanapataphee: Department of Mathematics and Statistics, Curtin University of Technology, GPO Box U1987, Perth, Australia
Kuppalapalle Vajravelu: Department of Mathematics, University of Central Florida, Orlando, FL, USA

International Journal of Modern Physics C (IJMPC), 2018, vol. 29, issue 09, 1-24

Abstract: This research deals with an analysis of the Hall current effect on the mixed convective magneto-micropolar fluid flow over a permeable stretching/shrinking sheet. Impact of the Newtonian heating parameter is analyzed in the slip flow regime. The nonlinear equations of the fluid flow are derived with the help of a similarity transform and its solutions are obtained by Optimal Homotopy Analysis Method (OHAM). For limiting cases, obtained results are in excellent agreement with the available exact and numerical results in the literature. The graphical and tabular representations of the obtained results show significant effects of the physical parameters on the magneto-micropolar fluid flow and heat transfer characteristics. In particular, it is observed that, as the sheet stretches, a change in the Hall current parameter yields a higher horizontal velocity component for the lower value of the magnetic field parameter; while it produces a higher and shorter transverse velocity profile at high intensity of the magnetic field. In Magnetohydrodynamics (MHD) generators, Hall effects are an important consideration to analyze the heat transfer phenomenon with high temperature conducting fluids.

Keywords: Hall current; Newtonian heating; magneto-micropolar fluid; stretching/shrinking sheet; slip flow (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1142/S0129183118500900

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