Flow regimes and characteristics of dense particulate flows with coarse particles in inclined pipe
文献类型：期刊论文
| 作者 | Zhang Y(张岩); Ren WL(任万龙); Li P(李鹏) ; Zhang XH(张旭辉); Lu XB(鲁晓兵)
|
| 刊名 | POWDER TECHNOLOGY
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 428页码:118859 |
| 关键词 | Particulate flows Inclined pipe Coarse particles Flow regimes CFD-DEM |
| ISSN号 | 0032-5910 |
| DOI | 10.1016/j.powtec.2023.118859 |
| 英文摘要 | This paper presents a numerical simulation for dense particulate flows with coarse particles in inclined pipe to identify different flow regimes by means of computational fluid dynamics-discrete element method. The drag, gravitational, pressure gradient and virtual mass forces on particles, as well as the effect of particle-particle collisions are considered. Two flow regimes and their transitions are observed and described. The influence of Stokes number St, Froude number Fr, inclination angle fl, etc., on critical flow regimes is analyzed to identify the dependence of flow regimes on these parameters. A new diagram for recognizing regime transition is given. The temporal variations of flow fields are also analyzed to illustrate propagating of kinematic waves. The wave velocity increases with Fr, fl, and particle concentration increasing. Two dimensionless numbers, collision stress and fluid-particle interaction stress, are defined to explain the regime transition mechanism. The maximum pressure drop occurs at approximately fl = 60 & DEG;. |
| 分类号 | 二类/Q1 |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001059564200001 |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences [XDA22000000] ; National Natural Science Foundation of China [12132018] ; Youth Innovation Promotion Association of Chi-nese Academy of Sciences [2017027] |
| 其他责任者 | Zhang, XH (corresponding author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China. |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/92645]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.{Zhang Yan, Ren Wanlong, Li Peng, Zhang Xuhui, Lu Xiaobing} Chinese Acad Sci Inst Mech Beijing 100190 Peoples R China 2.{Ren Wanlong, Zhang Xuhui, Lu Xiaobing} Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Y,Ren WL,Li P,et al. Flow regimes and characteristics of dense particulate flows with coarse particles in inclined pipe[J]. POWDER TECHNOLOGY,2023,428:118859. |
| APA | 张岩,任万龙,李鹏,张旭辉,&鲁晓兵.(2023).Flow regimes and characteristics of dense particulate flows with coarse particles in inclined pipe.POWDER TECHNOLOGY,428,118859. |
| MLA | 张岩,et al."Flow regimes and characteristics of dense particulate flows with coarse particles in inclined pipe".POWDER TECHNOLOGY 428(2023):118859. |
入库方式： OAI收割
来源：力学研究所
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