2023
DOI: 10.1177/09544062231152174
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Two-phase flow in a vertical concentric annulus: Pressure drop and flow configuration

Abstract: This paper presents experimental investigation of flow configurations and pressure drop of single-phase water flow and two-phase air-water flow in a vertical annulus. The annular test section had a concentric geometry with a casing and tubing diameter of 50 and 33.7 mm, respectively. The superficial velocity conditions of the liquid and gas were ranged 0.08–1.56 and 0–3.56 m/s, respectively. The combination of these superficial velocities produces the bubbly, slug and churn flow regimes. The identification of … Show more

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