GPU-based discrete element simulation on flow regions of flat bottomed cylindrical hopper | |
Peng, Li1,2; Xu, Ji1; Zhu, Qingshan1,2; Li, Hongzhong1,2; Ge, Wei1,2; Chen, Feiguo1; Ren, Xinxin1 | |
刊名 | POWDER TECHNOLOGY
![]() |
2016-12-01 | |
卷号 | 304期号:DEC页码:218-228 |
关键词 | Discrete element method (DEM) Flow regions Flat bottomed hopper Voidage profiles Velocity distribution |
ISSN号 | 0032-5910 |
英文摘要 | In this study, flow regions in flat bottomed cylindrical gravity-driven hoppers are investigated in terms of velocity and voidage distributions of particles via GPU-based DEM (discrete element method) simulation. For the first time, the hopper flow with steady discharge is described as nine regions which are essential and critical for better understanding of hopper flow. The variation of solid concentration is less than 1% in the transition flow region. The particle acceleration in the converging flow region decreases with increasing the height along hopper. The arch zone, which has the highest particle acceleration, can be divided into a vertical flow region and a centripetal flow region, based on the directions of partide velocities. The area of the vertical flow region and the centripetal flow region decreases with the-decrease of hopper outlet size, so fewer particles above these two regions flow acceleratedly to the outlet, resulting in the height reduction of the converging flow region and the transition flow region. (C) 2016 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] | STATE GRANULAR FLOW ; SIZE SEGREGATION ; DISCHARGE ; STRESS ; DEM ; DYNAMICS ; SOLIDS ; FIELDS ; MODEL ; WALL |
收录类别 | SCI ; ISTP |
语种 | 英语 |
WOS记录号 | WOS:000389394500024 |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/21840] ![]() |
专题 | 过程工程研究所_多相复杂系统国家重点实验室 |
作者单位 | 1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Peng, Li,Xu, Ji,Zhu, Qingshan,et al. GPU-based discrete element simulation on flow regions of flat bottomed cylindrical hopper[J]. POWDER TECHNOLOGY,2016,304(DEC):218-228. |
APA | Peng, Li.,Xu, Ji.,Zhu, Qingshan.,Li, Hongzhong.,Ge, Wei.,...&Ren, Xinxin.(2016).GPU-based discrete element simulation on flow regions of flat bottomed cylindrical hopper.POWDER TECHNOLOGY,304(DEC),218-228. |
MLA | Peng, Li,et al."GPU-based discrete element simulation on flow regions of flat bottomed cylindrical hopper".POWDER TECHNOLOGY 304.DEC(2016):218-228. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论