Numerical Simulation of the Two-Phase Flow Hydrodynamics Over a Submerged Perforated Sheet Using the OpenFOAM Code

In this article, the features of a two-phase flow near a perforated sheet were studied in an experimental setup, and numerical modeling of this process was performed using the OpenFOAM CFD code. An experiment was performed with a total air flow of 30 liters/min, which corresponds to a velocity of 0.94 m/s in the holes of the perforated sheet. As a result of processing the experiment, the following parameters were obtained: the size of the air bubbles coming out of the perforated sheet and the frequency of their formation, the size of water droplets and jets on the interface. In the calculations, the OpenFOAM code considered the outflow of air through one hole of a perforated sheet, followed by the formation of jets and water droplets on the interface surface. The comparison of the calculated and experimental results showed a good qualitative and quantitative agreement of the main parameters.