Correlating measurement qualities of cross-correlation based solids velocimetry with solids convection-mixing competing mechanism in different gas fluidization regimes
文献类型：期刊论文
| 作者 | Xiao, Hongliang2; Zhang, Yongmin2; Wang, Junwu1,3,4
|
| 刊名 | CHEMICAL ENGINEERING SCIENCE
 |
| 出版日期 | 2022-05-18 |
| 卷号 | 253页码:11 |
| ISSN号 | 0009-2509 |
| 关键词 | Particle velocity measurement Residence time distribution Peclet number Fluidization Convection and mixing Multiphase flow |
| DOI | 10.1016/j.ces.2022.117602 |
| 英文摘要 | Solids velocimetry based on cross-correlation algorithm has been widely used in multiphase systems. Recent studies have revealed that its measurement qualities depend critically on fluidization regimes, and the underlying mechanism was supposed to be the competition between solids convection and mixing. In this study, a method was proposed to analyze the local solids residence time distribution (RTD) from the results of Eulerian-Lagrangian simulations. Systematic simulations were then conducted to acquire the local solids RTDs in various gas-solids fluidization regimes. Afterward, the local Peclet numbers were quantified. It was found that the measurement qualities are intimately related to the local Peclet numbers and the solids convection-mixing competing mechanism. Present study revealed the underlying mechanism of the success and failure of cross-correlation based solids velocimetry, and proved that the cross-correlation algorithm is ideal for solids convection-dominated systems or regions in a system, but caution is needed when solids mixing is important. (c) 2022 Elsevier Ltd. All rights reserved. |
| WOS关键词 | RESIDENCE TIME DISTRIBUTION ; OPTICAL-FIBER PROBE ; PARTICLE-VELOCITY ; CFD SIMULATION ; REFLECTION PROBES ; BED ; HYDRODYNAMICS ; DISTRIBUTIONS ; RISER ; DISPERSION |
| 资助项目 | National Natural Science Foundation of China[21276273] ; National Natural Science Foundation of China[11988102] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000793216600007 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/53397]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Zhang, Yongmin; Wang, Junwu |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 2.China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao, Hongliang,Zhang, Yongmin,Wang, Junwu. Correlating measurement qualities of cross-correlation based solids velocimetry with solids convection-mixing competing mechanism in different gas fluidization regimes[J]. CHEMICAL ENGINEERING SCIENCE,2022,253:11. |
| APA | Xiao, Hongliang,Zhang, Yongmin,&Wang, Junwu.(2022).Correlating measurement qualities of cross-correlation based solids velocimetry with solids convection-mixing competing mechanism in different gas fluidization regimes.CHEMICAL ENGINEERING SCIENCE,253,11. |
| MLA | Xiao, Hongliang,et al."Correlating measurement qualities of cross-correlation based solids velocimetry with solids convection-mixing competing mechanism in different gas fluidization regimes".CHEMICAL ENGINEERING SCIENCE 253(2022):11. |
入库方式： OAI收割
来源：过程工程研究所
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