Effects on the mixing process of a coiled tube after a T-junction: Simulation and correlation

Shan Zhu; Kai Wang; Yangcheng Lü

doi:10.1016/j.cjche.2018.04.003

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Effects on the mixing process of a coiled tube after a T-junction: Simulation and correlation

Fluid Dynamics and Transport Phenomena | Updated：2026-01-06

- Effects on the mixing process of a coiled tube after a T-junction: Simulation and correlation
- Effects on the mixing process of a coiled tube after a T-junction: Simulation and correlation
- 中国化学工程学报（英文版） 2018年26卷第12期页码：2441-2447
- Affiliations：
  
  State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University,Beijing,China,100084
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2018.04.003
  中图分类号：
- 纸质出版：2018
- Accepted：
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Shan Zhu, Kai Wang, Yangcheng Lü. Effects on the mixing process of a coiled tube after a T-junction: Simulation and correlation[J]. 中国化学工程学报（英文版）, 2018,26(12):2441-2447.

Shan Zhu, Kai Wang, Yangcheng Lü. Effects on the mixing process of a coiled tube after a T-junction: Simulation and correlation[J]. Chin.J.Chem.Eng., 2018, 26(12): 2441-2447.
Shan Zhu, Kai Wang, Yangcheng Lü. Effects on the mixing process of a coiled tube after a T-junction: Simulation and correlation[J]. 中国化学工程学报（英文版）, 2018,26(12):2441-2447. DOI： 10.1016/j.cjche.2018.04.003.

Shan Zhu, Kai Wang, Yangcheng Lü. Effects on the mixing process of a coiled tube after a T-junction: Simulation and correlation[J]. Chin.J.Chem.Eng., 2018, 26(12): 2441-2447. DOI： 10.1016/j.cjche.2018.04.003.

摘要

Abstract

Simulations were performed to examine the effects of a coiled tube after a T-junction on the mixing and flow characteristics. A coiled tube was found to have two effects:inducing a radial flow and flattening the axial velocity distribution

which enhances and weakens the mixing

respectively. In the straight tube section connecting the T-junction and coiled tube

the latter may dominate and cause the mixing to deteriorate. An experiment was performed with the Villermaux/Dushman method to verify the simulation results. Based on a mixing performance simulation with various fluid and geometric structure parameters

a dimensionless correlation was obtained that can be used to determine the mixing intensity along the coiled tube with a deviation of less than 1.5%. These results provide guidance for designing a coiled tube or optimizing the operating conditions to meet the mixing requirements of specific chemical processes.

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