The influence of orifice shape on the flow rate: A DEM and experimental research in 3D hopper granular flows
文献类型：期刊论文
| 作者 | Wan, Jiangfeng1,2; Wang, Fugang1,3; Yang, Guanghui1; Zhang, Sheng1; Wang, Mengke1,2; Lin, Ping1; Yang, Lei1
|
| 刊名 | POWDER TECHNOLOGY
 |
| 出版日期 | 2018-07-15 |
| 卷号 | 335页码:147-155 |
| 关键词 | Hopper granular flow Wear Orifice shape GPU simulations Flow rate |
| ISSN号 | 0032-5910 |
| DOI | 10.1016/j.powtec.2018.03.041 |
| 英文摘要 | Abrasive wear of the orifice cannot be avoided for a hopper which should be operated uninterruptedly for a long time in engineering applications. Consequently, the change of the orifice shape will lead to the variation of flow rate for the hopper. In this paper, the influence of orifice shape on the flow rate in ordinary flat-bottom hoppers is investigated both numerically and experimentally. The flow rate increases when the orifice is from sharp to smooth in both flat-bottom and conical-bottom hoppers. The data can be well fitted with a modified Beverloo's formula. The result is supported by the profile of kinetic pressure near the orifice. Moreover, the fluctuation of the instantaneous flow rate is reduced with smooth orifice. In addition, it is found that the diameter of the hopper D and the thickness of the bottom H do not influence the flow rate. This paper contributes to control the flow rate by optimizing the shape of orifice. (C) 2018 Elsevier B.V. All rights reserved. |
| WOS关键词 | DISCRETE NUMERICAL-MODEL ; BULK SOLIDS ; ELEMENT METHOD ; DISCHARGE ; SIMULATION ; WEAR ; ASSEMBLIES ; DESIGN ; SILO |
| 资助项目 | National Magnetic Confinement Fusion Science Program of China[2014GB104002] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000438002400015 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://119.78.100.186/handle/113462/59685]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Yang, Lei |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, 509 Nanchang Rd, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 3.Northwest Normal Univ, Coll Phys & Elect Engn, 967 Anning East Rd, Lanzhou 730070, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wan, Jiangfeng,Wang, Fugang,Yang, Guanghui,et al. The influence of orifice shape on the flow rate: A DEM and experimental research in 3D hopper granular flows[J]. POWDER TECHNOLOGY,2018,335:147-155. |
| APA | Wan, Jiangfeng.,Wang, Fugang.,Yang, Guanghui.,Zhang, Sheng.,Wang, Mengke.,...&Yang, Lei.(2018).The influence of orifice shape on the flow rate: A DEM and experimental research in 3D hopper granular flows.POWDER TECHNOLOGY,335,147-155. |
| MLA | Wan, Jiangfeng,et al."The influence of orifice shape on the flow rate: A DEM and experimental research in 3D hopper granular flows".POWDER TECHNOLOGY 335(2018):147-155. |
入库方式： OAI收割
来源：近代物理研究所
浏览0
下载0
收藏0
其他版本
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。