Experimental study of horizontal air-water plug-to-slug transition flow in different pipe sizes

The effect of air velocity on slugs in a confined channel

“…Many researchers have experimentally investigated the internal two phase flow [14], [15], [24]- [31], [16]- [23]. Hudaya et al [14] studied the interfacial characteristics of a stratified wavy air-water flow.…”

“…These were wave coalescence, wave growth mechanism and large disturbance waves. Kong et al [16] conducted an experimental study of air-water flow in different sizes of horizontal pipes, small (38.1 mm) and large (101.6 mm). The study shows that increasing pipe size has a clear effect on flow dynamics.…”