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Abstract

In this paper we consider a fluid particle suspension filling the region between two rigid parallel plates, assuming that initially the plates as well as the fluid are at rest. The unsteady flow generated by moving suddenly the two plates in their own plane is studied. Taking the Laplace Transform of the equations of motion with the appropriate central and boundary conditions, the Laplace Transforms of the fluid velocity, dust particle velocity, volume flux of the fluid and volume flux of the dust particles across a plane normal to the flow per unit width and the skin friction are obtained. Numerical Inversion is carried out using the procedure of Honig and Hirdes [3] and their variation is studied with respect to diverse fluid parameters, space variable and time. The variation of the flow field quantities is studied numerically and the results are presented through graphs.