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| Correlating measurement qualities of cross-correlation based solids velocimetry with solids convection-mixing competing mechanism in different gas fluidization regimes | |
Xiao, Hongliang1; Zhang, Yongmin1; Wang, Junwu2,3,4
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| 2022-05-18 | |
| Source Publication | CHEMICAL ENGINEERING SCIENCE
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| ISSN | 0009-2509 |
| Volume | 253Pages:11 |
| Abstract | 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. |
| Keyword | Particle velocity measurement Residence time distribution Peclet number Fluidization Convection and mixing Multiphase flow |
| DOI | 10.1016/j.ces.2022.117602 |
| Language | 英语 |
| WOS Keyword | RESIDENCE TIME DISTRIBUTION ; OPTICAL-FIBER PROBE ; PARTICLE-VELOCITY ; CFD SIMULATION ; REFLECTION PROBES ; BED ; HYDRODYNAMICS ; DISTRIBUTIONS ; RISER ; DISPERSION |
| Funding Project | National Natural Science Foundation of China[21276273] ; National Natural Science Foundation of China[11988102] |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| Funding Organization | National Natural Science Foundation of China |
| WOS ID | WOS:000793216600007 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/53398 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Zhang, Yongmin; Wang, Junwu |
| Affiliation | 1.China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China |
| Recommended Citation 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. |
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