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Latin American applied research

On-line version ISSN 1851-8796

Abstract

AHMED, S  and  BATIN, A. Magnetohydrodynamic heat and mass transfer flow with induced magnetic filed and viscous dissipative effects. Lat. Am. appl. res. [online]. 2014, vol.44, n.1, pp. 09-17. ISSN 1851-8796.

An approximate solution to the problem of steady free convective MHD flow of an incompressible viscous electrically-conducting fluid over an infinite vertical isothermal porous plate with mass convection is presented here. A uniform magnetic field is assumed to be applied transversely to the direction of the flow, taking into account the induced magnetic field with viscous and magnetic dissipations of energy. The dimensionless governing equations are solved by using the series solution method. The induced magnetic field, current density, temperature gradient and flow velocity are studied for magnetohydrodynamic body force, magnetic Prandtl number, Schmidt number and Eckert number. It is observed that the induced magnetic field is found to increase with a rise in magnetic Prandtl number. Current density is strongly reduced with increasing magnetic Prandtl number, but enhanced with Schmidt number. The acquired knowledge in our study can be used by designers to control MHD flow as suitable for a certain applications such as laminar magneto-aerodynamics, and MHD propulsion thermo-fluid dynamics

Keywords : Newtonian Fluid; Thermo-Fluid Dynamics; Heat Transfer Control; MHD Energy Generators; Viscous and Magnetic Dissipative Heat.

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