标题:Interplay of electrically conducting and non conducting walls on magnetohydrodynamic mixed convection flow in vertical permeable micro-channel in existence of induced magnetic field
期刊名称:Beni-Suef University Journal of Basic and Applied Sciences
印刷版ISSN:2314-8535
电子版ISSN:2314-8543
出版年度:2018
卷号:7
期号:3
页码:317-325
DOI:10.1016/j.bjbas.2018.03.011
语种:English
出版社:Elsevier
摘要:AbstractIn this article, flow formation of fully developed mixed convection flow of an incompressible, viscous and electrically conducting fluid in vertical permeable micro-channel in presence of induced magnetic field is analyzed. The effects of velocity slip and temperature jump are taken into account. The influence of induced magnetic field arising due to the motion of an electrically conducting fluid in the presence of transverse magnetic field is taken into consideration. The governing equations of the motion are a set of simultaneous ordinary differential equations and their exact solutions in dimensionless form have been obtained for the velocity field, the induced magnetic field and the temperature field. The expressions for the induced current density and skin friction have also been obtained. Numerical procedures are examined for various active parameters namely: suction/injection, rarefaction, fluid wall interaction, mixed convection, Hartmann number and the magnetic Prandtl number. Results revealed that, increase in Hartmann number and magnetic Prandtl number causes a pronounced reduction in skin friction.
关键词:Mixed convection;Permeable micro-channel;Induced magnetic field;Electrically conducting and non conducting;Velocity slip;Temperature jump