Investigation of the slug regime of water and oil flow in the Y-microchannel

The work is devoted to the study of the slug regime flow of immiscible liquids water-oil. The experimental study of the slug regime of water and oil flow in the Y-microchannel in a wide range of flow rates is carried out. Numerical modeling and comparison of the calculation results with the experiment are carried out. It is shown that modeling qualitatively correctly describes the shape and size of projectiles, as well as the distance between them. The ranges in which the slug regime of the water-oil flow is possible are determined. The dependence of the length of water shells on the ratio of liquid flow rates is established. It is shown experimentally that the calculation in all the considered modes qualitatively predicts the shape of the interface between liquids.