Numerical simulation of micromixing effect on the reactive flow in a co-rotating twin screw extruder

Hao Tang; Yuan Zong; Ling Zhao

doi:10.1016/j.cjche.2016.04.040

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Numerical simulation of micromixing effect on the reactive flow in a co-rotating twin screw extruder

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

- Numerical simulation of micromixing effect on the reactive flow in a co-rotating twin screw extruder
- Chinese Journal of Chemical Engineering Vol. 24, Issue 9, Pages: 1135-1146(2016)
- Affiliations：
  
  State Key Laboratory of Chemical Engineering, East China University of Science and Technology,Shanghai,China,200237
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2016.04.040
  CLC： 10.1016/j.cjche.2016.04.040
- Published：2016
- Accepted：
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Hao Tang, Yuan Zong, Ling Zhao. Numerical simulation of micromixing effect on the reactive flow in a co-rotating twin screw extruder[J]. , 2016, 24(9): 1135-1146.
DOI：

Hao Tang, Yuan Zong, Ling Zhao. Numerical simulation of micromixing effect on the reactive flow in a co-rotating twin screw extruder[J]. , 2016, 24(9): 1135-1146. DOI： 10.1016/j.cjche.2016.04.040.

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Abstract

To control the multicomponent reactions in extrusion

reactive-mixing flow in a co-rotating twin screw extruder was numerically studied in the present paper. Effects of initial species distribution

rotating speed and flow rate on a competitive-parallel reaction were investigated and the relationship between mixing and reactions was discussed from the view of chemical reaction engineering. The simulation results show the studied operational parameters

which determine residence time distribution

earliness of mixing and segregation degree of reactive-mixing flows

affect the local species concentration and reaction time and hence have significant influences on the reaction extent. Orthogonal test was adopted to clarify the significance of operational parameters. The analysis shows that initial species distribution and flow rate are the most important factors in the control of reaction extent

and effect of rotating speed is conditional depending on the micro-mixing status of the fluid.

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