Multiphase flow in the Rock&Roll Ring-Flowloop

Abstract

En cette année 2020 un peu particulière, la journée scientifique s'est tenu sous la forme d’un webinaire organisé par le site clermontois représenté par l’Institut Pascal (IP).National audienceThe aim of this work is to conduct an experimental study on gas-liquid flow patterns in an in-house made Ring flowloop called Rock&Roll. The Rock&Roll flowloop is a unique apparatus the pipe is installed on a disk that is sequentially inclined by an axis in 4 positions, to induce the motion of the fluid, inside the ring-tube, similarly to a rocking cell. Two parameters drive the torus: the inclination angle and the rotation speed. The absence of pump enables undisturbed flow, while the endless test section affords flow to become fully developed. The first experimental investigations enabled to establish the experimental protocol and study the air-water two-phase flow patterns in the torus by varying liquid loading, diameter of the tube and rotation speed of the torus. On the base of qualitative observations, a flow regime map was produced