FLUCTUATING FLOW OF A STRAFIED VISCOUS FLUID THROUGH A POROUS MEDIUM BETWEEN TWO PARALLEL PLATES.

Abstract

The flow of a stratified viscous fluid through a porous medium between two parallel impermeable plates when the lower plate fluctuates in time about a constant mean and the upper plate moves with a constant velocity is analysed. Various graphs have been drawn to show the effect of the permeability of the porous medium and of the stratification upon the velocity field and upon the amplitudes and the phase leads of the fluctuating parts of the skin-frictions on the plates.