| Sensitivity Study on Modeling an Internal Airlift Loop Reactor Using a Steady 2D Two-Fluid Model | |
| Huang, Qingshan1,2; Yang, Chao1; Yu, Gengzhi1; Mao, Zai-Sha1 | |
| 2008-12-01 | |
| 发表期刊 | CHEMICAL ENGINEERING & TECHNOLOGY
 |
| 卷号 | 31期号:12页码:1790-1798 |
| 摘要 | The sensitivity study of bubbly flow in an internal airlift loop reactor is presented using a steady Reynolds averaging two-fluid model. Comparative evaluation of different drag formulations, drag coefficient correlations, turbulence effect on the drag coefficient, outlet slip velocity, and bubble size is performed and the respective influence to the simulation results is highlighted. It is found that a complicated drag formulation may not result in reliable predictions. All the drag coefficient correlations underpredict the gas holdup if the influence of turbulence on the drag coefficient is not well incorporated. Fortunately, the global hydrodynamics is not sensitive to the outflow slip velocity for a wide range, so a steady two-fluid model can be used to simulate the bubbly flow when the flow field is fully developed. The correct estimation of bubble size with properly selected correlations play an important role in successful simulation of gas-liquid bubbly flow in airlift loop reactors.; The sensitivity study of bubbly flow in an internal airlift loop reactor is presented using a steady Reynolds averaging two-fluid model. Comparative evaluation of different drag formulations, drag coefficient correlations, turbulence effect on the drag coefficient, outlet slip velocity, and bubble size is performed and the respective influence to the simulation results is highlighted. It is found that a complicated drag formulation may not result in reliable predictions. All the drag coefficient correlations underpredict the gas holdup if the influence of turbulence on the drag coefficient is not well incorporated. Fortunately, the global hydrodynamics is not sensitive to the outflow slip velocity for a wide range, so a steady two-fluid model can be used to simulate the bubbly flow when the flow field is fully developed. The correct estimation of bubble size with properly selected correlations play an important role in successful simulation of gas-liquid bubbly flow in airlift loop reactors. |
| 文章类型 | Article |
| 关键词 | Bubbly Flow Internal Airlift Loop Reactor Modeling Sensitivity Study Two-fluid Model |
| 学科领域 | 热化学转化 |
| WOS标题词 | Science & Technology ; Technology |
| DOI | 10.1002/ceat.200700278 |
| 关键词[WOS] | GAS-LIQUID FLOW ; STIRRED VESSEL ; BUBBLE-COLUMN ; NUMERICAL-SIMULATION ; CFD SIMULATIONS ; TURBULENCE ; TANK ; DISPERSION ; TURBINE ; CLOSURE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Engineering |
| WOS类目 | Engineering, Chemical |
| WOS记录号 | WOS:000261928500009 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qibebt.ac.cn/handle/337004/410 |
| 专题 | 热化学转化研究组 |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Qingdao Inst Biomass Energy & Bioproc Technol, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Qingshan,Yang, Chao,Yu, Gengzhi,et al. Sensitivity Study on Modeling an Internal Airlift Loop Reactor Using a Steady 2D Two-Fluid Model[J]. CHEMICAL ENGINEERING & TECHNOLOGY,2008,31(12):1790-1798. |
| APA | Huang, Qingshan,Yang, Chao,Yu, Gengzhi,&Mao, Zai-Sha.(2008).Sensitivity Study on Modeling an Internal Airlift Loop Reactor Using a Steady 2D Two-Fluid Model.CHEMICAL ENGINEERING & TECHNOLOGY,31(12),1790-1798. |
| MLA | Huang, Qingshan,et al."Sensitivity Study on Modeling an Internal Airlift Loop Reactor Using a Steady 2D Two-Fluid Model".CHEMICAL ENGINEERING & TECHNOLOGY 31.12(2008):1790-1798. |
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