Criteria for Beverloo's scaling law
文献类型：期刊论文
| 作者 | Zhang, Sheng; Lin, Ping; Yang, Guanghui; Wan, Jiang-Feng; Tian, Yuan ; Yang, Lei
|
| 刊名 | CHINESE PHYSICS B
 |
| 出版日期 | 2019 |
| 卷号 | 28页码:018101 |
| 关键词 | Beverloo's law orifice diameter hopper size discrete element method |
| ISSN号 | 1674-1056 |
| DOI | 10.1088/1674-1056/28/1/018101 |
| 英文摘要 | Beverloo's scaling law can describe the flow rate of grains discharging from hoppers. In this paper, we show that the Beverloo's scaling law is valid for varying material parameters. The flow rates from a hopper with different hopper and orifice sizes (D, D-0) are studied by running large-scale simulations. When the hopper size is fixed, the numerical results show that Beverloo's law is valid even if the orifice diameter is very large and then the criteria for this law are discussed. To eliminate the effect of walls, it is found that the criteria can be suggested as D - D-0 >= 40d or D/D-0 >= 2. Interestingly, it is found that there is still a scaling relation between the flow rate and orifice diameter if D/D-0 is fixed and less than 2. When the orifice diameter is close to the hopper size, the velocity field changes and the vertical velocities of grains above the free fall region are much larger. Then, the free fall arch assumption is invalid and Beverloo's law is inapplicable. |
| WOS关键词 | GRANULAR-MATERIALS ; FLOW ; SILO |
| 资助项目 | National Natural Science Foundation of China[11705256] ; National Natural Science Foundation of China[11605264] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000456873000001 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://119.78.100.186/handle/113462/67132]  |
| 专题 | 中国科学院近代物理研究所 |
| 作者单位 | Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Sheng,Lin, Ping,Yang, Guanghui,et al. Criteria for Beverloo's scaling law[J]. CHINESE PHYSICS B,2019,28:018101. |
| APA | Zhang, Sheng,Lin, Ping,Yang, Guanghui,Wan, Jiang-Feng,Tian, Yuan,&Yang, Lei.(2019).Criteria for Beverloo's scaling law.CHINESE PHYSICS B,28,018101. |
| MLA | Zhang, Sheng,et al."Criteria for Beverloo's scaling law".CHINESE PHYSICS B 28(2019):018101. |
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。