旋回流による気泡除去の数値解析

概要

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A numerical analysis is performed for clarifying flow characteristics on a bubble elimination system, which consists of a circular body for a tangentially supplied swirled flow with a valve for discharging bubbles. At first, the steady laminar flow field is sought numerically through the incompressible Navier-Stokes equation, assuming that the fraction of bubble quantity is sufficiently small. Then, a bubble released in the system is traced by integrating the equation of motion for the bubble. As a result, the pressure distribution on the axis of the circular body obtained numerically is found to be in good agreement with experimental ones. In addition, according to the behaviour of bubbles contained, the larger the bubble size may be or the faster the mean velocity in the circular body may be, the easier the elimination of bubbles will be.
一般社団法人日本機械学会の論文
1991-12-25