A long cylinder of radius `R_1` is displaced along its axis with a constant velocity `v_0` inside
Channel: Doubtnut
Date: 2020-08-16

A long cylinder of radius `R_1` is displaced along its axis with a constant velocity `v_0` inside a stationary co-axial cylinder of radius `R_2`. The space between the cylinders is filled with viscous liquid. Find the velocity of the liquid as a function of the distance r from the axis of the cylinders. The flow is laminar.