Progress and prospect of flow phenomena and simulation on two-phase separation in branching T-junctions: A review

Pei Lu, Li Zhao, Nan Zheng, Shengli Liu, Xiaobing Li, Xing Zhou and Jingbo Yan

Renewable and Sustainable Energy Reviews, 2022, vol. 167, issue C

Abstract: T-junctions are extensively applied in industries including petroleum industry, nuclear power plant, thermodynamic cycle, chemical industry and so on. The uneven distribution characteristic of two-phase in T-junctions has received considerable attention. Many studies have been published on the two-phase separation in T-junction by means of theoretical, experimental, and numerical methods. Among them, the experimental and theoretical researches have been reviewed by other researchers. But numerical researches are multifarious and without a clarified review work yet. Furthermore, the flow phenomenon and mechanism of T-junction still need to be clarified. Therefore, a systematic literature review of two-phase flow mechanism and simulation methods in branching T-junction is presented in this paper. Firstly, flow phenomena and mechanism including flow behavior at the junction, evolution of droplets and particles, and mass transfer in T-junctions are summarized and reviewed in detail. Then the applied numerical models including multiphase model, turbulence model and validation methods are introduced. Finally, knowledge gaps and development prospects on phase separation in T-junction are put forward, and some suggestions are identified for future research. Results indicated that Eulerian-Eulerian model and VOF multiphase model have already made gratifying performance in the simulation of gas-liquid separation ratios. If these two models further improve the accuracy in capturing flow details, it will help to have a deeper understanding of the separation mechanism. This manuscript endeavors to provide a whole picture of the latest research progress of numerical simulation of two-phase flow separation in T-junction, and provide a clear flow mechanism at junctions.

Keywords: T-junction; Two-phase flow; Flow mechanism; Numerical simulation (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (2)

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DOI: 10.1016/j.rser.2022.112742

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