CFD simulation of gas–liquid flows in stirred vessel equipped with dual rushton turbines: influence of parallel, merging and diverging flow configurations
Computational fluid dynamics (CFD) was used to investigate the influence of parallel, merging and diverging flow configurations on the gas dispersion operation in stirred vessel. The simulation was based on the two-fluid model along with the standard k– ε turbulence model along with an appropriate d...
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| Published in | Chemical engineering science Vol. 63; no. 14; pp. 3810 - 3820 |
|---|---|
| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
Oxford
Elsevier Ltd
01.07.2008
Elsevier |
| Subjects | |
| Online Access | Get full text |
| ISSN | 0009-2509 1873-4405 |
| DOI | 10.1016/j.ces.2008.04.039 |
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| Abstract | Computational fluid dynamics (CFD) was used to investigate the influence of parallel, merging and diverging flow configurations on the gas dispersion operation in stirred vessel. The simulation was based on the two-fluid model along with the standard
k–
ε
turbulence model along with an appropriate drag correction to account for bulk turbulence [Khopkar, A.R., Ranade, V.V., 2006. CFD simulation of gas–liquid stirred vessel: VC, S33 and L33 flow regimes. A.I.Ch.E. Journal 52, 1654–1671]. The model predictions were compared with the published experimental data of Bombac, Zun [2000. Gas-filled cavity structures and local void fraction distribution in vessel with dual-impellers. Chemical Engineering Science 55, 2995–3001] for parallel flow configuration. The predicted results show reasonably good agreement with the experimental data. The computational model was then used to simulate the gas–liquid flows for the other two flow configurations. The results of this work provide ‘a priory’ information on the implications of flow configuration on the vessel performance. |
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| AbstractList | Computational fluid dynamics (CFD) was used to investigate the influence of parallel, merging and diverging flow configurations on the gas dispersion operation in stirred vessel. The simulation was based on the two-fluid model along with the standard
k–
ε
turbulence model along with an appropriate drag correction to account for bulk turbulence [Khopkar, A.R., Ranade, V.V., 2006. CFD simulation of gas–liquid stirred vessel: VC, S33 and L33 flow regimes. A.I.Ch.E. Journal 52, 1654–1671]. The model predictions were compared with the published experimental data of Bombac, Zun [2000. Gas-filled cavity structures and local void fraction distribution in vessel with dual-impellers. Chemical Engineering Science 55, 2995–3001] for parallel flow configuration. The predicted results show reasonably good agreement with the experimental data. The computational model was then used to simulate the gas–liquid flows for the other two flow configurations. The results of this work provide ‘a priory’ information on the implications of flow configuration on the vessel performance. Computational fluid dynamics (CFD) was used to investigate the influence of parallel, merging and diverging flow configurations on the gas dispersion operation in stirred vessel. The simulation was based on the two-fluid model along with the standard k-epsilon turbulence model along with an appropriate drag correction to account for bulk turbulence [Khopkar, A.R., Ranade, V.V., 2006. CFD simulation of gas-liquid stirred vessel: VC, S33 and L33 flow regimes. A.I.Ch.E. Journal 52, 1654-1671]. The model predictions were compared with the published experimental data of Bombac, Zun [2000. Gas-filled cavity structures and local void fraction distribution in vessel with dual-impellers. Chemical Engineering Science 55, 2995-3001] for parallel flow configuration. The predicted results show reasonably good agreement with the experimental data. The computational model was then used to simulate the gas-liquid flows for the other two flow configurations. The results of this work provide 'a priory' information on the implications of flow configuration on the vessel performance. |
| Author | Tanguy, Philippe A. Khopkar, Avinash R. |
| Author_xml | – sequence: 1 givenname: Avinash R. surname: Khopkar fullname: Khopkar, Avinash R. email: AKhopkar@dow.com, avinash.khopkar@polymtl.ca – sequence: 2 givenname: Philippe A. surname: Tanguy fullname: Tanguy, Philippe A. |
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| Cites_doi | 10.1016/S0009-2509(98)00114-6 10.1002/aic.690420204 10.1002/aic.690490703 10.1002/bit.260340506 10.1016/0009-2509(94)00318-1 10.1205/026387604774196028 10.1016/S0009-2509(99)00234-1 10.1016/S0009-2509(99)00469-8 10.1016/j.ces.2005.04.078 10.1016/S0009-2509(02)00274-9 10.1002/aic.10762 10.1016/S1385-8947(02)00008-6 10.1016/j.ces.2005.11.061 10.1016/j.ces.2005.09.023 10.1016/j.ces.2004.11.044 10.1007/BF02812053 10.1016/0009-2509(92)80318-7 10.1021/ie020954t 10.1016/S0009-2509(98)00301-7 10.1016/B978-044450476-0/50026-1 10.1016/j.ces.2004.11.046 10.1016/S0065-2377(06)31003-4 |
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| Keywords | Flow configurations CFD Dual impeller Stirred vessel Gas holdup distribution Gas holdup Turbulence Two phase flow Computational fluid dynamics Chemical engineering Prediction Two fluid model Hydrodynamics Turbine impeller Void fraction Modeling Dispersion Flow regime Drag Gas liquid flow Parallel flow |
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| Snippet | Computational fluid dynamics (CFD) was used to investigate the influence of parallel, merging and diverging flow configurations on the gas dispersion operation... |
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| SubjectTerms | Applied sciences CFD Chemical engineering Dual impeller Exact sciences and technology Flow configurations Gas holdup distribution Hydrodynamics of contact apparatus Mixing Stirred vessel |
| Title | CFD simulation of gas–liquid flows in stirred vessel equipped with dual rushton turbines: influence of parallel, merging and diverging flow configurations |
| URI | https://dx.doi.org/10.1016/j.ces.2008.04.039 https://www.proquest.com/docview/32775307 |
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