Numerical Study of Upward Vertical Two-Phase Flow Through an Annulus Concentric Pipe

Authors

  • Hamza Gouidmi Faculty of Sciences and Technology, Mohamed El Bachir El Ibrahimi University, Bordj Bou Arreridj, El-Anasser 34295, Algeria
  • Razik Benderradji Faculty of Science Mohamed Boudiaf University, M’Sila- Algeria
  • Abdelhadi Beghidja Laboratory of Renewable Energies and Sustainable Development, Faculty of technology sciences, Mentouri Brothers Constantine 1 University, Constantine 16261, Algeria
  • Tahar Tayebi Energy Physics Laboratory, Department of Physics, Faculty of Science, Mentouri Brothers Constantine 1 University, Constantine 16261, Algeria

Keywords:

two-phase flow pattern, VOF model (volume of fluid), volume fractions, concentric annulus

Abstract

This study provides a 3D numerical simulation of two-phase flow in upward vertical annuli pipe using the Fluent CFD commercial code. The condition of two-phase flow was simulated with the Volume of Fluid (VOF) model, taking into consideration turbulence effects using the k-e model. The internal and external diameters of the pipe are DT=12.7 mm, DC=38.1 mm, respectively and length L=16 m. Numerical results were obtained for various values of air velocity, Ug at fixed water velocity (Ul =0.14 m/s). In this numerical simulation, we have identified global flux structures and their transition regimes, such as the size and shape of bubbles, slug and their zigzag and coalescence phenomena. These flow regimes have been clearly influenced by the air velocity. The results obtained have been validated and are consistent with those experimentally reported.

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Published

2020-12-16

How to Cite

Hamza Gouidmi, Benderradji, R. ., Beghidja, A. ., & Tayebi, T. . (2020). Numerical Study of Upward Vertical Two-Phase Flow Through an Annulus Concentric Pipe. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 58(2), 187–206. Retrieved from https://www.akademiabaru.com/submit/index.php/arfmts/article/view/2580

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