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Title: MHD variable viscosity mixed convection of nanofluid in a microchannel with permeable walls
Authors: Kefene, Mesfin Zewde
Makinde, Oluwole Daniel
Enyadene, Lemi Guta
Keywords: MHD;Nanofluid;Permeable microchannel;Mixed convection;Variable viscosity;Suction/injection;Buongiorno model
Issue Date: Dec-2020
Publisher: NISCAIR-CSIR, India
Abstract: In this study, we examine the combined effects of buoyancy forces, pressure gradient, thermophoresis, Brownian motion, variable viscosity of nanofluid flow in a microchannel with suction and injection in the presence of uniform magnetic field imposed in cross-wise direction. It is assumed that the dynamic viscosity of the nanofluid is related with temperature exponentially and that the vertical parallel-plates temperature is held asymmetrically. Applying similarity transformation, the governing system of partial differential equations (PDEs) are transformed into a set of non-dimensional nonlinear partial differential equations whose solutions are obtained numerically by semi-discretization centered finite difference method along with Runge-Kutta Fehlberg integration technique scheme. Qualitative description of graphical results depicting the effect of thermophysical parameters on the dimensionless velocity, temperature, nanoparticles concentration, skin friction, Nusselt number and Sherwood number are presented.
Page(s): 892-908
ISSN: 0975-0959 (Online); 0301-1208 (Print)
Appears in Collections:IJPAP Vol.58(12) [December 2020]

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