SLOW STEADY FLOW OF A VISCOUS INCOMPRESIBLE FLUID BETWEEN TWO INFINITE CO-AXIAL CIRCULAR CYLINDERS WITH AXIAL ROUGHNESS

摘要

In the present note, we have considered the motion of viscous incompressible fluid through the annulus of two smooth concentric infinite circular cylinders with axial roughness. .The motion is originally set up by pressure gradient acting in the direction of the common axis of the cyliders. The solution for the problem is obtained by applying complex Fourier transform.rnThe distribution of velocity in the radial and axial direction have been calcutated and in the central region the nature of the flow have been depicted in figs. 1 and 2 and it is found for roughness of the wall the nature of distribution of velocity seems to be oscillatory in nature.