A Two-Fluid Model for High-Viscosity Upward Annular Flow in Vertical Pipes

Ribeiro, Joseph X. F., Liao, Ruiquan, Aliyu, Aliyu M. , Ahmed, Salem K. B., Baba, Yahaya D., Almabrok, Almabrok A., Archibong-Eso, Archibong, Liu, Zilong, , and , (2021) A Two-Fluid Model for High-Viscosity Upward Annular Flow in Vertical Pipes. Energies, 14 (12). p. 3485. ISSN 1996-1073

Full content URL: https://doi.org/10.3390/en14123485

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A Two-Fluid Model for High-Viscosity Upward Annular Flow in Vertical Pipes
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Abstract

Proper selection and application of interfacial friction factor correlations has a significant impact on prediction of key flow characteristics in gas–liquid two-phase flows. In this study, experimental investigation of gas–liquid flow in a vertical pipeline with internal diameter of 0.060 m is presented. Air and oil (with viscosities ranging from 100–200 mPa s) were used as gas and liquid phases, respectively. Superficial velocities of air ranging from 22.37 to 59.06 m/s and oil ranging from 0.05 to 0.16 m/s were used as a test matrix during the experimental campaign. The influence of estimates obtained from nine interfacial friction factor models on the accuracy of predicting pressure gradient, film thickness and gas void fraction was investigated by utilising a two-fluid model. Results obtained indicate that at liquid viscosity of 100 mPa s, the interfacial friction factor correlation proposed by Belt et al. (2009) performed best for pressure gradient prediction while the Moeck (1970) correlation provided the best prediction of pressure gradient at the liquid viscosity of 200 mPa s. In general, these results indicate that the two-fluid model can accurately predict the flow characteristics for liquid viscosities used in this study when appropriate interfacial friction factor correlations are implemented.

Keywords:Two phase flow, interfacial friction factor, High viscosity oil, Pressure drop, vertical pipes
Subjects:H Engineering > H850 Petroleum Engineering
H Engineering > H141 Fluid Mechanics
H Engineering > H800 Chemical, Process and Energy Engineering
H Engineering > H300 Mechanical Engineering
Divisions:College of Science > School of Engineering
ID Code:48019
Deposited On:06 Jul 2022 09:53

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