Identification of two-phase flow regimes in horizontal, inclined andvertical pipes

Abstract

Identification of two-phase flow regimes is required in manyindustrial processes; however, it is difficult to perform this objectively.This paper introduces the TERT-II prototype developed in Tianjin Universityand the process by which we applied it to identify flow regimes of air/waterand oil/water flows in horizontal, inclined and vertical pipes. Thecorresponding software package of this system was developed under the Windows95/98 platform. It included data acquisition, data processing, imagereconstruction and identification of flow regimes. The air/water and oil/waterexperiments were carried out with different experimental set-ups.It is shown that identification of flow regimes and estimates of someparameters of two-phase flow are possible through image reconstruction, dataanalysis and processing, and a set of criteria is specially presented toidentify flow regimes in horizontal pipes.