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MHD flow over a moving plate in a rotating fluid with magnetic field, Hall currents and free stream velocity

Takhar, Harmindar S. and Chamkha, Ali J. and Nath, Girishwar (2002) MHD flow over a moving plate in a rotating fluid with magnetic field, Hall currents and free stream velocity. International journal of engineering science, 40 (13). pp. 1511-1527. ISSN 0020-7225

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Abstract

The non-similar boundary layer flow of a viscous incompressible electrically conducting fluid over a moving surface in a rotating fluid, in the presence of a magnetic field, Hall currents and the free stream velocity has been studied. The parabolic partial differential equations governing the flow are solved numerically using an implicit finite-difference scheme. The Coriolis force induces overshoot in the velocity profile of the primary flow and the magnetic field reduces/removes the velocity overshoot. The local skin friction coefficient for the primary flow increases with the magnetic field, but the skin friction coefficient for the secondary flow reduces it. Also the local skin friction coefficients for the primary and secondary flows are reduced due to the Hall currents. The effects of the magnetic field, Hall currents and the wall velocity, on the skin friction coefficients for the primary and secondary flows increase with the Coriolis force. The wall velocity strongly affects the flow field. When the wall velocity is equal to the free stream velocity, the skin friction coefficients for the primary and secondary flows vanish, but this does not imply separation.

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