Bubble Separation in a Gas–Liquid Swirling Pipe Flow

• DOI: 10.1080/01457632.2024.2384159
• Publication Date: 2024-08-05T09:20:22Z
• Authors: Wen Liu; Pingnan Huang; Nan Wu
• Keywords: Separation (statistics)

Gas–liquid swirling pipe flow plays an essential role in phase separators. Bubble motions and patterns transitions the are crucial for further investigation of this flow. However, much attention has been paid to these non-swirl instead swirl In work, bubble separation generated by a vane-typed swirler vertical with inner diameter 62 mm was experimentally studied. Superficial air velocities (0.036 − 1.41 m/s) superficial water (0.02 0.95 m/s). The results show that dispersed bubbles gradually transform gas column increasing (0.093 0.640 flow; transforms intermittent (0.05 0.40 m/s), one peak increases two peaks probability density function curve pressure drop; slug can Finally, transition criteria were proposed: when turbulent fluctuations strong enough overcome centrifugal force, then move center coalescence each other, lead flow/swirling