A numerical study of mixing intensification for highly viscous fluids in multistage rotor–stator mixers

Liying Chen; Junheng Guo; Wenpeng Li; Shuchun Zhao; Wei Li; Jinli Zhang

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A numerical study of mixing intensification for highly viscous fluids in multistage rotor–stator mixers

Full Length Article | Updated：2026-01-06

- A numerical study of mixing intensification for highly viscous fluids in multistage rotor–stator mixers
- A numerical study of mixing intensification for highly viscous fluids in multistage rotor–stator mixers
- 中国化学工程学报（英文版） 2022年47卷第7期页码：218-230
- Affiliations：
  
  1. School of Chemical Engineering and Technology, Tianjin University,Tianjin,China,300072
  2. School of Chemical Engineering, Zhengzhou University,Zhengzhou,China,450001
  3. School of Chemistry and Chemical Engineering, Shihezi University,Shihezi,China,832003
- Author bio：
- Funds：
- DOI：
  中图分类号：
- 纸质出版：2022
- Accepted：
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Liying Chen, Junheng Guo, Wenpeng Li, 等. A numerical study of mixing intensification for highly viscous fluids in multistage rotor–stator mixers[J]. 中国化学工程学报（英文版）, 2022,47(7):218-230.

Liying Chen, Junheng Guo, Wenpeng Li, Shuchun Zhao, Wei Li, Jinli Zhang. A numerical study of mixing intensification for highly viscous fluids in multistage rotor–stator mixers[J]. Chinese Journal of Chemical Engineering, 2022, 47(7): 218-230.
Liying Chen, Junheng Guo, Wenpeng Li, 等. A numerical study of mixing intensification for highly viscous fluids in multistage rotor–stator mixers[J]. 中国化学工程学报（英文版）, 2022,47(7):218-230. DOI：

Liying Chen, Junheng Guo, Wenpeng Li, Shuchun Zhao, Wei Li, Jinli Zhang. A numerical study of mixing intensification for highly viscous fluids in multistage rotor–stator mixers[J]. Chinese Journal of Chemical Engineering, 2022, 47(7): 218-230. DOI：

摘要

Abstract

How to achieve uniform mixing of highly viscous fluids with low energy consumption is a major industry demand and one of the hot spots of mixing research. A typical multistage rotor-stator mixer (MRSM) equipped with a distributor was investigated to disclose the effects on the mixing performance and power consumption for highly viscous fluids

via

numerical simulation

considering the influence factors associated with different geometric parameters of both MRSM and the distributor. The mixing index and power consumption are used to evaluate the performance of the mixers. The dimensionless correlations for the mixing index and the power consumption are established considering the factors including the flow rate

rotor speed

the number of mixing units. Adopting the optimized mixer with the distributor (X1-T1)

the mixing index increases to 0.85 (obviously higher than 0.46 for the mixer T1 without a distributor)

meanwhile the corresponding power consumption is about 1/5 of that of T1 achieving the same mixing effect. It illustrates that the distributor can significantly improve the mixing of highly viscous fluids in the MRSM without the cost of large power consumption. These results would provide a guidance on

the design and optimization of multistage rotor-stator mixers in industrial applications.

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