A Model for Liquid Slug Length Distribution in Vertical Gas-liquid Slug Flow

摘要

The slug length and the trailing Taylor bubble velocity in upward vertical slug flow have been measured by using the optical probes and the EKTAPRO 1000 high speed motion analyzer. The correlation between the trailing bubble velocity and the length of liquid slug ahead of that bubble is derived from the experimental data. Based on this correlation as well as the bubble overtaking mechanism, a model that is able to calculate the slug length distribution at any designated locations along the pipe is presented. The predicted results are in agreement with the experimental data.