Knowledge Management System Of Institute of process engineering,CAS
| Numerical analysis of a single particle impaction on a powdery layer with fine particles | |
| Zhu, Runru1; Liu, Wenwei1; Li, Gengda2; Huang, Yun1 | |
| 2021-04-06 | |
| Source Publication | CHEMICAL ENGINEERING SCIENCE
 |
| ISSN | 0009-2509 |
| Volume | 233Pages:11 |
| Abstract | The impaction of a single fly ash particle with a powdery layer consisting of uniform fine particles is numerically studied by means of the discrete element method. The influences of the incident velocity and the packed particle size on the microstructure of the powdery layer as well as the impact crater are systematically investigated. It is found out that with the increase of the impact velocity, the incident particle undergoes a transition from a complete sticking regime to a stable rebounding regime, where almost all the incident particles rebound after impaction. The critical incident velocity to reach the stable rebounding regime increases with the increase of the packed particle size. Furthermore, the evolution of the microstructure of the particle layer is evaluated quantitatively in terms of the local coordination number and void fraction, of which the variations increase with the decrease of the packed particle size, and increase quasi-linearly with the increase of the incident velocity. In addition, the normalized size of the impact crater is found to follow a 1/5 power law of the normalized impact energy. However, with the same incident velocity, the normalized crater size seems to be identical for different packed particle sizes. (C) 2020 Elsevier Ltd. All rights reserved. |
| Keyword | Discrete element method Particle layer Impaction Rebounding Crater size |
| DOI | 10.1016/j.ces.2020.116398 |
| Language | 英语 |
| Funding Project | "Thirteenth Five-Year" National Key R&D Program of China[2018YFC1903000] ; Jiangsu Province Science and Technology Achievements Transformation Special Funding Project[BA2020056] ; China Energy Science and Technology Project[GJNY-18-27] |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| Funding Organization | "Thirteenth Five-Year" National Key R&D Program of China ; Jiangsu Province Science and Technology Achievements Transformation Special Funding Project ; China Energy Science and Technology Project |
| WOS ID | WOS:000618125100021 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/43409 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Liu, Wenwei |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Guodian New Energy Technol Res Inst Co Ltd, Beijing 102209, Peoples R China |
| Recommended Citation GB/T 7714 | Zhu, Runru,Liu, Wenwei,Li, Gengda,et al. Numerical analysis of a single particle impaction on a powdery layer with fine particles[J]. CHEMICAL ENGINEERING SCIENCE,2021,233:11. |
| APA | Zhu, Runru,Liu, Wenwei,Li, Gengda,&Huang, Yun.(2021).Numerical analysis of a single particle impaction on a powdery layer with fine particles.CHEMICAL ENGINEERING SCIENCE,233,11. |
| MLA | Zhu, Runru,et al."Numerical analysis of a single particle impaction on a powdery layer with fine particles".CHEMICAL ENGINEERING SCIENCE 233(2021):11. |
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