Numerical simulation of power and flow field characteristics of different spiral stirred reactors

doi:10.1016/j.cjche.2024.10.021

中国化学工程学报 ›› 2025, Vol. 78 ›› Issue (2): 218-231.DOI: 10.1016/j.cjche.2024.10.021

Numerical simulation of power and flow field characteristics of different spiral stirred reactors

Qingzhao Liu, Yang Qin, Guodong Zhu, Xubin Zhang, Fumin Wang, Guobing Li, Shuai Liu, Zhiwei Zhang, Bingxin Zhu, Zheng Wang

School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

收稿日期:2024-08-14 修回日期:2024-10-29 接受日期:2024-10-30 出版日期:2025-02-08 发布日期:2024-12-06
通讯作者: Xubin Zhang,E-mail:tjzxb@tju.edu.cn;Fumin Wang,E-mail:wangfumin@tju.edu.cn;Guobing Li,E-mail:lgbbox@tju.edu.cn
基金资助:
This work was supported by the Natural Science Foundation of Shandong Province (ZR2023ZD22) and the Major Research and Development Program of Shandong Province (2023CXGC010601).

Numerical simulation of power and flow field characteristics of different spiral stirred reactors

Qingzhao Liu, Yang Qin, Guodong Zhu, Xubin Zhang, Fumin Wang, Guobing Li, Shuai Liu, Zhiwei Zhang, Bingxin Zhu, Zheng Wang

School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

Received:2024-08-14 Revised:2024-10-29 Accepted:2024-10-30 Online:2025-02-08 Published:2024-12-06
Supported by:
This work was supported by the Natural Science Foundation of Shandong Province (ZR2023ZD22) and the Major Research and Development Program of Shandong Province (2023CXGC010601).

摘要/Abstract

摘要： Under the dual-carbon background, the technological updating of traditional high-energy-consuming equipment should not be delayed, and the problem of reactor energy consumption should not be ignored. Therefore, this study is based on computational fluid dynamics (CFD) theory to simulate the spiral stirred reactor with different design parameters (distance of paddle from bottom surface to reactor height ratio h₁/H, diameter of stirring paddle to reactor diameter ratio D_s/D, length of blade section to reactor height ratio L_s/H). It was found that the reactor designed with lower L_s/H values and higher h₁/H, D_s/D values would have smaller power number (N_p) values and smaller flow field average velocity. In addition, this study also fitted the correlation equation of Np concerning Reynolds number and h₁/H, D_s/D, and L_s/H, and the conclusions of the study can be used as a reference for the design of industrial equipment.

关键词: Spiral, Reactors, Computational fluid dynamics (CFD), Power number, Fluid mechanics

Abstract: Under the dual-carbon background, the technological updating of traditional high-energy-consuming equipment should not be delayed, and the problem of reactor energy consumption should not be ignored. Therefore, this study is based on computational fluid dynamics (CFD) theory to simulate the spiral stirred reactor with different design parameters (distance of paddle from bottom surface to reactor height ratio h₁/H, diameter of stirring paddle to reactor diameter ratio D_s/D, length of blade section to reactor height ratio L_s/H). It was found that the reactor designed with lower L_s/H values and higher h₁/H, D_s/D values would have smaller power number (N_p) values and smaller flow field average velocity. In addition, this study also fitted the correlation equation of Np concerning Reynolds number and h₁/H, D_s/D, and L_s/H, and the conclusions of the study can be used as a reference for the design of industrial equipment.

Key words: Spiral, Reactors, Computational fluid dynamics (CFD), Power number, Fluid mechanics

Qingzhao Liu, Yang Qin, Guodong Zhu, Xubin Zhang, Fumin Wang, Guobing Li, Shuai Liu, Zhiwei Zhang, Bingxin Zhu, Zheng Wang. Numerical simulation of power and flow field characteristics of different spiral stirred reactors[J]. 中国化学工程学报, 2025, 78(2): 218-231.

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Numerical simulation of power and flow field characteristics of different spiral stirred reactors

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