Flow field characteristics analysis of venturi ejector improved by swirler using CFD simulation

Wang Yunlong; Ge Jijun; Kuang Zheng; Li Guoxuan; Xu Pan; Bi Rongshan

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Flow field characteristics analysis of venturi ejector improved by swirler using CFD simulation

Updated：2026-09-17

- Flow field characteristics analysis of venturi ejector improved by swirler using CFD simulation
- Chinese Journal of Chemical Engineering Vol. 95, Issue 7, Pages: 302-312(2026)
- Affiliations：
  
  College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
  Qingdao Shenwo Chemical Technology Co., Ltd., Qingdao 266073, China
- Author bio：
  
  *Corresponding authors. E-mail addresses:xupan5226@163.com(P. Xu)
  *Corresponding authors. E-mail addresses:birongshan@163.com(R. Bi).
- Funds：
- DOI：
  CLC：
- Received：19 November 2025，
  
  Revised：2026-01-14，
  
  Accepted：15 January 2026，
  
  Online First：16 April 2026，
  
  Published：2026-07
- Accepted：
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Wang Yunlong, Ge Jijun, Kuang Zheng, et al. Flow field characteristics analysis of venturi ejector improved by swirler using CFD simulation[J]. Chinese Journal of Chemical Engineering, 2026, 95(7): 302-312.
DOI：

Wang Yunlong, Ge Jijun, Kuang Zheng, et al. Flow field characteristics analysis of venturi ejector improved by swirler using CFD simulation[J]. Chinese Journal of Chemical Engineering, 2026, 95(7): 302-312. DOI：

摘要

Abstract

The ejector

a key component of the jet loop reactor for efficient gas—liquid mass

transfer

has its structural design and optimization as the core of process intensification. In this work

based on the self-designed down-jet venturi ejector

water—air is used as the working medium

and a swirler structure is added to the nozzle. Combined with the computational fluid dynamics (CFD) method

the changes of the internal flow field of the ejector in the presence of the swirler are analyzed in depth. The effects of liquid circulation rate (

)

nozzle size

and swirler angle on the performance of the ejector are investigated. The results show that under the operating conditions of 0.55 m

·h

- 1

the combination of a 3 mm nozzle and 30◦swirler can significantly improve the ejector's suction volume (

) and gas—liquid interface area density (IAD).

reaches 3.22 m

·h

- 1

and IAD is 5246.8 m

·m

- 3

. This study reveals the internal hydrodynamic mechanism of the swirler to enhance the performance of the ejector. It provides theoretical guidance for the design and operation optimization of high-performance swirl ejectors.

关键词

Keywords

references

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