Computational Fluid Dynamics Simulation and Experimental Measurement of Gas and Solid Holdup Distributions in a Gas-Liquid-Solid Stirred Reactor
文献类型：期刊论文
| 作者 | Yang, Shifang1,2; Li, Xiangyang1; Yang, Chao1,2; Ma, Bin1,3; Mao, Zai-Sha1 |
| 刊名 | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
 |
| 出版日期 | 2016-03-30 |
| 卷号 | 55期号:12页码:3276-3286 |
| ISSN号 | 0888-5885 |
| 英文摘要 | The lack of convincing computational fluid dynamics models and basic experimental data makes it difficult to design and scale up a gas liquid solid three-phase stirred reactor such as in environmentally benign bioleaching processes. In this work, a steady state gas liquid solid Eulerian Eulerian multifluid model was developed to predict flow field and local phase holdup distribution. The measurements of gas and solid holdup distributions in a gas liquid solid stirred reactor were simultaneously obtained for the first time by a new improved sample withdrawal technique. The influence of the presence of a second dispersed phase on interphase drag force was taken into account, and good agreement for the local phase holdup was obtained between the predictions and the experimental data. The solid concentration increased, and the gas holdup decreased along the radial direction from the reactor axis to the wall. A simplified bubble-size model considering the effect of turbulence dissipation rate was incorporated in the model instead of a fixed size. It was found that smaller bubbles concentrated in the impeller region, and the bubble size increased near the free surface. The mixing efficiency could be enhanced obviously when double impellers were employed. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | MECHANICALLY AGITATED CONTACTOR ; PARTICLE IMAGE VELOCIMETRY ; BUBBLE-SIZE DISTRIBUTIONS ; CFD SIMULATIONS ; FLOW ; VESSEL ; SUSPENSION ; TANK ; IMPELLER ; TURBINE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000373519300008 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/20995]  |
| 专题 | 过程工程研究所_湿法冶金清洁生产技术国家工程实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.China Univ Min & Technol, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Shifang,Li, Xiangyang,Yang, Chao,et al. Computational Fluid Dynamics Simulation and Experimental Measurement of Gas and Solid Holdup Distributions in a Gas-Liquid-Solid Stirred Reactor[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2016,55(12):3276-3286. |
| APA | Yang, Shifang,Li, Xiangyang,Yang, Chao,Ma, Bin,&Mao, Zai-Sha.(2016).Computational Fluid Dynamics Simulation and Experimental Measurement of Gas and Solid Holdup Distributions in a Gas-Liquid-Solid Stirred Reactor.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,55(12),3276-3286. |
| MLA | Yang, Shifang,et al."Computational Fluid Dynamics Simulation and Experimental Measurement of Gas and Solid Holdup Distributions in a Gas-Liquid-Solid Stirred Reactor".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 55.12(2016):3276-3286. |
入库方式： OAI收割
来源：过程工程研究所
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