“…Two-phase gas-liquid flow systems are prevalent in industrial processes and, consequently, the hydrodynamic behavior of gas-liquid systems is of great interest. Examples of gas-liquid flow systems include bubble columns (Jakobsen et al, 2005;Joshi, 2001;Rollbusch et al, 2015;Shaikh and Al-Dahhan, 2013;Shah et al, 1982), loop reactors (Becker et al, 1994), cyclones (Erdal et al, 1997), hydrocarbon pipelines (Issa and Kempf, 2003;Issa et al, 2006) and disengagers (Lane et al, 2016). The hydrodynamical behavior of gas-liquid systems is complicated and is dependent on factors such as operating conditions, physical properties, equipment type, etc.…”