Isakov

Experimental research of two-phase adiabatic flow in sparging regime in cylindrical vertical channels with different levels of air volume rates was carried out. Vector velocity fields obtained using the optics methods were analyzed to identify a character of the air volumes motion, a bubbles shape, velocities of both phases, a character of the liquid phase motion in the lower part of channel, void fractions. Obtained data describe a structure of two-phase flows in-detail for various flow regimes and can be used as a verification base for math models in modern CFD-codes.