Abstract
In this paper, the flow configuration of the two-phase slug flow, which contains small bubbles in the liquid slug has been analysed. The experiment has been carried out for air-water two-phase upward flow in 27.6 mm ID glass tube, using the electrode probe which indicates the void ratio fluctuation. The new parameters such as the ratios of the large bubble (Taylor bubble) volume (fdB) and of small bubbles volume in liquid slug (fdS) to a control volume, the void ratio in gas slug section (fd1) and the void ratio in liquid slug section (fd2) have been introduced. These parameters except fd1 are given experimentally as the funtion of mean void ratio fd only. They are as follows : fdB=fd1.8 fdS=fd(1-fd0.3) fd1=<0.65> fd2=fd1.8
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