论文名称： An investigation on the void fraction for upward gas-liquid slug flow in vertical pipe
作者： Xia GuoDong ，Zhou Fangde ，Hu mingsheng
来源出版物： Chinese Journal of Chemical Engineering
年卷期页： 2001,9(4):436-440
收录类型： SCI:504CL;WOS:000172839600017和EI
论文简介： In order to investigate the influence of the entrance effect on the spatial distribution of phases, the experiments on gas-liquid two-phase slug flow in a vertical pipe of 0.03m ID were carried out by using optical probes and an EKTAPRO 1000 high speed motion analyzer. It demonstrates that the radial profile of slug flow void fraction is parabolic. Influenced by the falling liquid film, the radial profile curve of liquid slug void fraction in the wake region is also parabolic. Since fully turbulent velocity distribution is built up in the developed region, the void fraction profile in this region is the saddle type. At given superficial liquid velocity, the liquid slug void fraction increases with gas velocity. The radial profiles of liquid slug void fraction at different axial locations are all saddle curves, but void fraction is obviously high around the centerline in the entrance region. The nearer the measuring station is from the entrance, the farther the peak location is away from the wall.
原文链接： An investigation on the void fraction for upward gas-liquid slug flow in vertical pipe