| Computational Fluid Dynamics Simulation of Regime Transition in Bubble Columns Incorporating the Dual-Bubble-Size Model | |
| Chen, Jianhua1,2; Yang, Ning1; Ge, Wei1; Li, Jinghai1; Yang, N | |
| 2009-09-02 | |
| Source Publication | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
 |
| ISSN | 0888-5885 |
| Volume | 48Issue:17Pages:8172-8179 |
| Abstract | This article investigates the two regime transition points for bubble columns with the so-called dual-bubble-size (DBS) model featuring the utilization of a stability condition to analyze the compromise between dominant mechanisms. Our previous work indicated that the second point could be reasonably predicted and physically interpreted by the DBS model for various gas-liquid systems. This work further clarifies the relationship between the bifurcation of energy dissipation and of structural parameters and the regime transition. It is found that the bifurcation of energy dissipation exists for both the gas-liquid and gas-solid systems and call be used to predict and understand regime transition in multiphase flow. Then the DBS model is incorporated into the two-fluid model for calculating interphase coupling, and I computational fluid dynamics (CFD) calculation is performed to simulate I bubble column. The "shoulder" on the gas hold-up curve can be observed in the simulation with the new coupling method, and the second transition point predicted from the CFD simulation is consistent with experiments and the calculation of the DBS model. Sparger effects are investigated through the two simulation cases for uniform aeration and local aeration, and the radial distribution of local hydrodynamic parameters is comparable with experimental data in the literature. |
| Keyword | Drag Force Formulation Flow-regime Stability Condition Turbulent-flow Cfd Simulation Reactors Hydrodynamics Coalescence Liquid |
| Subtype | Article |
| WOS Headings | Science & Technology ; Technology |
| DOI | 10.1021/ie801644d |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | DRAG FORCE FORMULATION ; FLOW-REGIME ; STABILITY CONDITION ; TURBULENT-FLOW ; CFD SIMULATION ; REACTORS ; HYDRODYNAMICS ; COALESCENCE ; LIQUID |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| WOS ID | WOS:000269197400035 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Version | 出版稿 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/6587 |
| Collection | 多相复杂系统国家重点实验室 |
| Corresponding Author | Yang, N |
| Affiliation | 1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Chen, Jianhua,Yang, Ning,Ge, Wei,et al. Computational Fluid Dynamics Simulation of Regime Transition in Bubble Columns Incorporating the Dual-Bubble-Size Model[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2009,48(17):8172-8179. |
| APA | Chen, Jianhua,Yang, Ning,Ge, Wei,Li, Jinghai,&Yang, N.(2009).Computational Fluid Dynamics Simulation of Regime Transition in Bubble Columns Incorporating the Dual-Bubble-Size Model.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,48(17),8172-8179. |
| MLA | Chen, Jianhua,et al."Computational Fluid Dynamics Simulation of Regime Transition in Bubble Columns Incorporating the Dual-Bubble-Size Model".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 48.17(2009):8172-8179. |
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| 20131226-8-bj0129985（1019KB） | 限制开放 | CC BY-NC-SA | Application Full Text | |||
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