Abstract
An idealized gas-liquid annular flow in a vertical rectangular channel is considered. Point sources of solid spheres are located on the walls to represent atomizing wall films. Feedback and inter-particle collisions are not considered. Statistics for fluid turbulent flow seen by particles were determined in the calculations in which a direct numerical simulation was used to calculate the fluid turbulence. The influence of a very wide range of particle sizes on the statistics is shown. The momentum balance between the mean value of the wall-normal fluid velocities that are seen by particles and the turbophoresis, in the fully-developed concentration field, demonstrates defects of the models for these effects.
