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Multi-objective optimization of stirring tank based on multiphase flow simulation. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.11.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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Wu Y, You P, Luo P. Effect of pitched short blades on the flow characteristics in a stirred tank with long-short blades impeller. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2021.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Wang Y, Hao L, Zhu Z, Xu J, Wei H. CFD research on the influence of geometry characteristic on flow pattern and the transition mechanism in Rushton turbine stirred vessels. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2021. [DOI: 10.1515/ijcre-2021-0041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In this paper, the transient MRF approach coupled with the standard k-ε and SST k-ω turbulence models was employed to study the effect of bottom shape, impeller diameter (D
J) and bottom height (H
2) on critical impeller off-bottom clearance (C). It was found the bottom shape and bottom height (H
2) have obvious influence on the flow pattern transition from double-loop to single-loop of RT impeller. The flow pattern transition mechanism was inferred to relate to the relationship between the space required by the lower circulation zone and the actual space. The boundary conditions of critical C were further concluded to help distinguish the flow pattern and receive the expected one in the stirred vessel design.
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Affiliation(s)
- Yinghui Wang
- School of Chemical Engineering and Technology, Tianjin University , Tianjin 300350 , China
| | - Lin Hao
- School of Chemical Engineering and Technology, Tianjin University , Tianjin 300350 , China
| | - Zhenxing Zhu
- Department of Process Engineering , Sinopec Research Institute of Petroleum Processing , Beijing 100083 , China
| | - Jinjie Xu
- School of Chemical Engineering and Technology, Tianjin University , Tianjin 300350 , China
| | - Hongyuan Wei
- School of Chemical Engineering and Technology, Tianjin University , Tianjin 300350 , China
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