Table 2
Flow pattern classification for vertical pipes used in this work. Adapted from Inoue et al. (2013) [49].
| Pattern | Representation in the literature |
|||||
|---|---|---|---|---|---|---|
| Kouba (1986) | Carey (1993) | Thomas (2004) | Omebere-Iyari and Azzopardi (2007) | Falcone et al. (2009) | Rosa et al. (2010) | |
| Bubbly Flow (BF) | – | – | – | Dispersed bubbles | – | Spherical caps |
| Dispersed bubble flow | Bubbly flow | Bubbles | Bubble flow | Bubble flow | Bubbly flow | |
| Intermittent Flow (IT) | Elongated bubble flow | Slug flow | Slug flow | Slug flow | Slug flow | Stable slug |
| Slug flow | Churn flow | Churn flow | Churn flow | Churn flow | Unstable slug | |
| Annular Flow (AF) | Wavy annular flow | Wispy annular flow | Annular flow | Annular flow | Wispy annular flow | Semi annular |
| Annular flow | Annular flow | – | – | Annular flow | Annular | |