Unsteady hydromagnetic flow through a porous medium between two infinite parallel porous plates with time-varying suction |
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| Authors: | I A Hassanien |
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| Institution: | (1) Department of Mathematics, Faculty of Science, Assiut, University, Assiut, Egypt |
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| Abstract: | Unsteady two-dimensional flow of a viscous incompressible and electrical-conducting fluid through a porous medium bounded by two infinite parallel plates under the action of a transverse magnetic field is presented when there is time-varying suction at the plates. The lower plate is at rest while the upper plate is oscillating in its own plane about a constant mean velocity. Expressions for the velocity, fluctuating parts of the velocity, amplitude, and phase of the skin-friction are obtained. The flow phenomenon has been characterized by the parametersK (permeability of the porous medium),N(magnetic parameter)  (frequency parameter), andA(variable suction parameter) and the role of these parameters on the flow characteristics has been studied. |
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