On the interaction between two consecutive elongated bubbles in a vertical pipe |
| |
Authors: | C Aladjem Talvy L Shemer D Barnea |
| |
Institution: | Department of Fluid Mechanics and Heat Transfer, Faculty of Engineering, Tel-Aviv University, Tel-Aviv 69978, Israel |
| |
Abstract: | The motion of elongated air bubbles in a vertical pipe filled with water is studied quantitatively using video imaging of the flow and subsequent digital image processing of the recorded sequence of images. Experiments are carried out to determine the influence of the separation distance between two consecutive bubbles (liquid slug length) upon the behavior of the trailing bubble in vertical slug flow. The details of the trailing bubble acceleration and merging process are observed and the instantaneous parameters of the trailing bubble, such as its shape, velocity, acceleration, etc., are measured as a function of the separation distance. The leading bubble is found to be unaffected by the trailing elongated bubble. |
| |
Keywords: | Two-phase slug flow Image processing |
本文献已被 ScienceDirect 等数据库收录! |
|