Flow of a Fluid in an Axially Rotating Pipe

Abstract

This paper presents the results of a preliminary experimental investigation into the flow of a fluid in an axially rotating pipe. It has been shown that the flow is stabilized when the pipe is rotated about its axis. At values of Reynolds number corresponding to turbulent flow in a stationary pipe it has been shown that the flow resistance is considerably reduced when the pipe is rotated, and at high rotational speeds reductions in pressure loss up to as much as 40 per cent were observed. Flow visualization experiments have shown that radial migration of fluid particles from the core of the fluid towards the pipe wall are diminished, and thus the rate of energy dissipation is reduced.