Interplay of non-conducting and conducting walls on magnetohydrodynamic (MHD) natural convection flow in vertical micro-channel in the presence of induced magnetic field

In this research paper, exact solution for fully developed magnetohydrodynamic (MHD) natural convection flow of viscous, incompressible, electrically conducting fluid in vertical micro-channel formed by electrically non-conducting and conducting infinite vertical parallel walls in the presence of ve...

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Main Authors: BasantK. Jha, Babatunde Aina
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2018-12-01
Series:Propulsion and Power Research
Online Access:http://www.sciencedirect.com/science/article/pii/S2212540X18300440
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author BasantK. Jha
Babatunde Aina
author_facet BasantK. Jha
Babatunde Aina
author_sort BasantK. Jha
collection DOAJ
description In this research paper, exact solution for fully developed magnetohydrodynamic (MHD) natural convection flow of viscous, incompressible, electrically conducting fluid in vertical micro-channel formed by electrically non-conducting and conducting infinite vertical parallel walls in the presence of velocity slip and temperature jump at the micro-channel walls is investigated. The influence of induced magnetic field (I.M.F) arising due to the motion of an electrically conducting fluid in the presence of transverse magnetic field is taken into consideration. Due to the presence of induced magnetic field, the momentum and induction equations are coupled. The exact solutions in dimensionless form have been obtained under relevant boundary conditions. The expressions for velocity field, the induced magnetic field, temperature field, induced current density and skin friction have been obtained. The effects of the various physical parameters appearing into the model such as rarefaction, fluid wall interaction, Hartmann number and the magnetic Prandtl number are demonstrated through graphs and table. The results indicate that, increase in Hartmann number and magnetic Prandtl number causes a pronounced reduction in volume flow rate. Keywords: Transverse magnetic field, Induced magnetic field, Velocity slip, Temperature jump, Electrically conducting, Electrically non-conducting walls
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spelling doaj.art-e5166441d8764f2ba48b0500a03c98a62023-09-02T13:59:13ZengKeAi Communications Co., Ltd.Propulsion and Power Research2212-540X2018-12-0174296307Interplay of non-conducting and conducting walls on magnetohydrodynamic (MHD) natural convection flow in vertical micro-channel in the presence of induced magnetic fieldBasantK. Jha0Babatunde Aina1Department of Mathematics, Ahmadu Bello University, Zaria, NigeriaCorresponding author. Tel.: (+234) 8063178775.; Department of Mathematics, Ahmadu Bello University, Zaria, NigeriaIn this research paper, exact solution for fully developed magnetohydrodynamic (MHD) natural convection flow of viscous, incompressible, electrically conducting fluid in vertical micro-channel formed by electrically non-conducting and conducting infinite vertical parallel walls in the presence of velocity slip and temperature jump at the micro-channel walls is investigated. The influence of induced magnetic field (I.M.F) arising due to the motion of an electrically conducting fluid in the presence of transverse magnetic field is taken into consideration. Due to the presence of induced magnetic field, the momentum and induction equations are coupled. The exact solutions in dimensionless form have been obtained under relevant boundary conditions. The expressions for velocity field, the induced magnetic field, temperature field, induced current density and skin friction have been obtained. The effects of the various physical parameters appearing into the model such as rarefaction, fluid wall interaction, Hartmann number and the magnetic Prandtl number are demonstrated through graphs and table. The results indicate that, increase in Hartmann number and magnetic Prandtl number causes a pronounced reduction in volume flow rate. Keywords: Transverse magnetic field, Induced magnetic field, Velocity slip, Temperature jump, Electrically conducting, Electrically non-conducting wallshttp://www.sciencedirect.com/science/article/pii/S2212540X18300440
spellingShingle BasantK. Jha
Babatunde Aina
Interplay of non-conducting and conducting walls on magnetohydrodynamic (MHD) natural convection flow in vertical micro-channel in the presence of induced magnetic field
Propulsion and Power Research
title Interplay of non-conducting and conducting walls on magnetohydrodynamic (MHD) natural convection flow in vertical micro-channel in the presence of induced magnetic field
title_full Interplay of non-conducting and conducting walls on magnetohydrodynamic (MHD) natural convection flow in vertical micro-channel in the presence of induced magnetic field
title_fullStr Interplay of non-conducting and conducting walls on magnetohydrodynamic (MHD) natural convection flow in vertical micro-channel in the presence of induced magnetic field
title_full_unstemmed Interplay of non-conducting and conducting walls on magnetohydrodynamic (MHD) natural convection flow in vertical micro-channel in the presence of induced magnetic field
title_short Interplay of non-conducting and conducting walls on magnetohydrodynamic (MHD) natural convection flow in vertical micro-channel in the presence of induced magnetic field
title_sort interplay of non conducting and conducting walls on magnetohydrodynamic mhd natural convection flow in vertical micro channel in the presence of induced magnetic field
url http://www.sciencedirect.com/science/article/pii/S2212540X18300440
work_keys_str_mv AT basantkjha interplayofnonconductingandconductingwallsonmagnetohydrodynamicmhdnaturalconvectionflowinverticalmicrochannelinthepresenceofinducedmagneticfield
AT babatundeaina interplayofnonconductingandconductingwallsonmagnetohydrodynamicmhdnaturalconvectionflowinverticalmicrochannelinthepresenceofinducedmagneticfield