Slug Flow Hydrodynamics Modeling for Gas–Liquid Two-Phase Flow in a Pipe

Huishu Liu, Jimiao Duan, Kecheng Gu, Jiang Li, Hao Yan, Jian Wang and Changjun Li
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Huishu Liu: Petroleum, Oil and Lubricants Department, Army Logistics Academy, Chongqing 401331, China
Jimiao Duan: Petroleum, Oil and Lubricants Department, Army Logistics Academy, Chongqing 401331, China
Kecheng Gu: Petroleum, Oil and Lubricants Department, Army Logistics Academy, Chongqing 401331, China
Jiang Li: Petroleum, Oil and Lubricants Department, Army Logistics Academy, Chongqing 401331, China
Hao Yan: Petroleum, Oil and Lubricants Department, Army Logistics Academy, Chongqing 401331, China
Jian Wang: Petroleum, Oil and Lubricants Department, Army Logistics Academy, Chongqing 401331, China
Changjun Li: Petroleum Engineering School, Southwest Petroleum University, Chengdu 610500, China

Energies, 2022, vol. 15, issue 2, 1-16

Abstract: Gas–liquid flow in a pipeline is a very common. Slug two-phase flow is dominated in the case of slightly upward flow (+0.25°) and considered to be the comprehensive flow configuration, and can be in close contact with all the other flow patterns. The models of different flow patterns can be unified. Precise prediction of the slug flow is crucial for proper design and operation. In this paper, we develop hydrodynamics unified modeling for gas–liquid two-phase slug flow, and the bubble and droplet entrainment is optimized. For the important parameters (wall and interfacial friction factors, slug translational velocity and average slug length), the correlations of these parameters are optimized. Furthermore, the related parameters for liquid droplet and gas bubble entrainment are given. Accounting for the gas–liquid interface shape, hydrodynamics models, i.e., the flat interface model (FIM) and the double interface model (DIM), of liquid film in the slug body are applied and compared with the experimental data. The calculated results show that the predictions for the liquid holdup and pressure gradient of the DIM agree with experimental data better than those of the FIM. A comparison between the available experimental results and Zhang’s model calculations shows that the DIM model correctly describes the slug dynamics in gas–liquid pipe flow.

Keywords: slug flow; gas-liquid interface shape; hydrodynamics model; pressure drop; liquid holdup (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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