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| Particle-level dynamics of clusters: Experiments in a gas-fluidized bed | |
Wang, Haifeng1,2,3; Chen, Yanpei1 ; Wang, Wei1,2
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| 2021-11-26 | |
| Source Publication | AICHE JOURNAL
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| ISSN | 0001-1541 |
| Pages | 16 |
| Abstract | Clustering is critical to understanding the multiscale behavior of fluidization. However, its time-resolved evolution at the particle level is seldom touched. Here, we explore both the time-averaged and time-resolved dynamics of clusters in a quasi-2D fluidized bed. Particle tracking velocimetry is adopted, and then clusters are identified by using Voronoi analysis. The time-averaged results show that the number distribution of the cluster size follows a power law (similar to n(c)(-2.2)) except for large clusters (n(c) > 100). Time-resolved analysis demonstrates that the cluster coalescence can be simplified as a collision between two inelastic clusters, during which the mean speed, kinetic energy, and total Voronoi cell area of particles decrease until the formation of the big cluster. Then, a model is proposed to predict its energy loss, which gives Delta E similar to t(3/2). Moreover, the breakup of the cluster is linked to increasing dimensionless torque on the particles. |
| Keyword | cluster gas-solid fluidization mesoscale particle tracking velocimetry time-resolved evolution |
| DOI | 10.1002/aic.17525 |
| Language | 英语 |
| WOS Keyword | SOLID FLOWS ; HETEROGENEOUS STRUCTURE ; CONSTITUTIVE MODELS ; INERTIAL PARTICLES ; HEAT-TRANSFER ; WALL ; RISER ; BEHAVIOR ; SIMULATION ; INSTABILITY |
| Funding Project | Strategic Priority Research Program of Chinese Academy of Sciences[XDA17010202] ; National Natural Science Foundation of China[11702291] ; National Natural Science Foundation of China[21625605] ; National Natural Science Foundation of China[21821005] ; National Natural Science Foundation of China[22161142006] ; National Natural Science Foundation of China[U1710251] ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM-2019-A03] ; Fund of State Key Laboratory of Multiphase complex systems[MPCS-2019-A-06] |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| Funding Organization | Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences ; Fund of State Key Laboratory of Multiphase complex systems |
| WOS ID | WOS:000722861500001 |
| Publisher | WILEY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/51255 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Chen, Yanpei; Wang, Wei |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing, Peoples R China 3.SINOPEC, Res Inst Petr Proc, Beijing, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Haifeng,Chen, Yanpei,Wang, Wei. Particle-level dynamics of clusters: Experiments in a gas-fluidized bed[J]. AICHE JOURNAL,2021:16. |
| APA | Wang, Haifeng,Chen, Yanpei,&Wang, Wei.(2021).Particle-level dynamics of clusters: Experiments in a gas-fluidized bed.AICHE JOURNAL,16. |
| MLA | Wang, Haifeng,et al."Particle-level dynamics of clusters: Experiments in a gas-fluidized bed".AICHE JOURNAL (2021):16. |
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