Abstract
The performance of a newly developed bubble elimination system is analyzed. The system consists of a circular body for a swirled flow supplied tangentially, equiped with a throttle valve downward and a valve for discharging bubbles upward.
A strong swirl superimposed on an averaged laminar flow during the initial state is found to decay exponentially with the distance from the entrance at the far downstream. As a result, for Reynolds numbers greater than a suitable value an adverse pressure gradient is produced, exerting a backward force on the bubbles to be discharged.
In addition, universal velocity distributions and pressure contours downward are shown.
