Regimes of Motion of Water–Air Flow in a Short Vertical Tube with the Underfeed of Phases

Results of experimental investigation of adiabatic motion of a water–air flow in a short vertical tube with the underfeed of phases and the injection feed of water have been presented. It has been shown that the size of the gap between the bottom edge of the tube and the level of liquid in the apparatus casing has a decisive influence on the regime of flow. Conditions for the occurrence of characteristic hydrodynamic regimes, and also the heat loss in the active zone of a contact-apparatus model have been determined.