Multiphase flow measurement devices are significantly affected by the flow pattern, such as,
eg, slug flow, leading to large uncertainties. In this context, the slug flow pattern in horizontal
pipes is investigated with the aim of finding a statistical characterization of the structures in
space and time. For this, two different instances of slug flow are analyzed with a snapshot
proper orthogonal decomposition and an additional mode coupling algorithm, which
provides an energy-ranked mode basis of the underlying coherent structures. For the …