Granular flow in a rotating drum with gaps in the side wall
文献类型：期刊论文
| 作者 | Liu, Xiaoxing1,2; Ge, Wei1; Xiao, Yongli3; Li, Jinghai1 |
| 刊名 | POWDER TECHNOLOGY
 |
| 出版日期 | 2008-02-22 |
| 卷号 | 182期号:2页码:241-249 |
| 关键词 | rotating drum end-wall effect DEM flow pattern particle temperature |
| ISSN号 | 0032-5910 |
| 其他题名 | Powder Technol. |
| 中文摘要 | This paper presents a numerical investigation of the motion of bi-sized particles in a short rotating drum by using Discrete Element Method (DEM). The side wall of the drum has equally spaced gaps whose width is just between the two particle diameters. One end wall of the drum is fixed while the other rotates with the side wall. Small particles are fed into the drum continuously at the center region in the axial direction. The effect of rotating speed on the volumetric holdup and residence time of small particle is investigated. A critical rotating speed is found, below which the decrease of rotating speed will increase the volumetric holdup and the residence time of the small particles sharply. A jump in the axial distribution of the outflow rate of the small particles is observed at the region adjacent to the fixed end wall. The flow pattern inside the drum is analyzed. In the region between the fixed end wall and the feeding point, all small particles, on average, move towards the fixed end wall. While in the region between the rotating end wall and the feeding point, the small particles curve away the rotating end wall in the upper part of the charge and return to this wall in the lower part. The particle temperature distributions at different rotating speeds are explored to understand the flow behavior observed in these simulations. (C) 2007 Elsevier B.V. All rights reserved. |
| 英文摘要 | This paper presents a numerical investigation of the motion of bi-sized particles in a short rotating drum by using Discrete Element Method (DEM). The side wall of the drum has equally spaced gaps whose width is just between the two particle diameters. One end wall of the drum is fixed while the other rotates with the side wall. Small particles are fed into the drum continuously at the center region in the axial direction. The effect of rotating speed on the volumetric holdup and residence time of small particle is investigated. A critical rotating speed is found, below which the decrease of rotating speed will increase the volumetric holdup and the residence time of the small particles sharply. A jump in the axial distribution of the outflow rate of the small particles is observed at the region adjacent to the fixed end wall. The flow pattern inside the drum is analyzed. In the region between the fixed end wall and the feeding point, all small particles, on average, move towards the fixed end wall. While in the region between the rotating end wall and the feeding point, the small particles curve away the rotating end wall in the upper part of the charge and return to this wall in the lower part. The particle temperature distributions at different rotating speeds are explored to understand the flow behavior observed in these simulations. (C) 2007 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | REVERSIBLE AXIAL SEGREGATION ; BALL MILLS ; PARAMETERS ; MEDIA ; MODEL |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000253798000013 |
| 公开日期 | 2013-10-08 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/2813]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multi Phase Complex Syst, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Baoshan Iron & Steel Co Ltd, Shanghai 201900, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xiaoxing,Ge, Wei,Xiao, Yongli,et al. Granular flow in a rotating drum with gaps in the side wall[J]. POWDER TECHNOLOGY,2008,182(2):241-249. |
| APA | Liu, Xiaoxing,Ge, Wei,Xiao, Yongli,&Li, Jinghai.(2008).Granular flow in a rotating drum with gaps in the side wall.POWDER TECHNOLOGY,182(2),241-249. |
| MLA | Liu, Xiaoxing,et al."Granular flow in a rotating drum with gaps in the side wall".POWDER TECHNOLOGY 182.2(2008):241-249. |
入库方式： OAI收割
来源：过程工程研究所
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