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| Numerical Simulation of Particle Fluidization Based on Rolling Mode |
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Received:February 21, 2023
Revised:March 21, 2023
Accepted:March 24, 2023
Published Online:May 19, 2023
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| DOI：doi：10.3969/j.issn.1007-7545.2023.06.008 |
| KeyWord:particles; discrete element; uniform distribution; numerical simulation |
| Author | Institution |
| LIU Zhe |
中国核动力研究设计院 |
| HUANG Jie |
中国核动力研究设计院 |
| CHEN Jiang-shan |
中国核动力研究设计院 |
| HUANG Yan-fen |
北京海基嘉盛科技有限公司 |
| XIANG Xue-feng |
北京海基嘉盛科技有限公司 |
| XUE Qing-pu |
北京海基嘉盛科技有限公司 |
| ZENG Qiang |
中国核动力研究设计院反应堆燃料及材料重点实验室 |
| YU Chong |
中国核动力研究设计院 |
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| Abstract: |
| Magnetron sputtering is the preferred method to prepare metal coatings. The microspheres need to maintain a high fluidization state when the microspheres are coated. The fluidization state of microspheres is affected by structural and operational parameters of the deposition chamber. DEMSLab software was used to numerically simulate the internal structure, vibration interval, surface roughness, rotation speed, mixing ball ratio and other factors of the deposition chamber. The results show that the mixing effect of the triangular plate is better than that of the cylinder chamber. The increase of the number of macrospheres contributes to the uniform distribution of fuel microspheres. Reasonable rotation speed and roughness make the distribution of fuel microspheres best. Subsequently, the multi-variable coupling study of equipment parameters and operating parameters can be carried out to make the particle distribution in the deposition chamber uniform. |
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