Geometric effects of 90-degree Elbow in the development of interfacial structures in horizontal bubbly flow

Development of kerosene–water two‐phase up‐flow in a vertical pipe downstream of A 90° bend

“…The asymmetric behaviour observed for liquid–liquid flow has been also reported for gas–water flow at L / D = 1 by Utiger et al (1999), and Kiambi et al (2001). The effect of 90° bend on flow development in a horizontal bubbly flow was also investigated by Kim et al (2007) which indicated a significant asymmetry in the radial distribution of the local parameters downstream the bend.…”

Characterization of horizontal air–water two-phase flow in a round pipe part II: Measurement of local two-phase parameters in bubbly flow

“…More recently, several studies have investigated the effect of elbow restrictions on horizontal bubbly flow (Kim et al, 2007;Talley et al, 2009;Kim et al, 2010;Yadav et al, 2010). In these studies, a double-sensor conductivity probe was employed to acquire local data in a 5.03 cm ID test section with a total development length of over 20 meters.…”

Two-phase flow induced vibration in piping systems

“…Pipe bend curvature has direct effect on phase separation at elbow section and alters void fraction and interfacial area concentration distribution in radial coordinate (Kim et al, 2007). However, since radius of curvature had little effect on momentum flux fluctuation in axial coordinate, no major effect on excitation force signal was reported (Riverin and Pettigrew, 2007).…”