The impact of particle size and concentration on the characteristics of solid-fluid two-phase flow in vertical pipe under pulsating flow
文献类型：期刊论文
| 作者 | Ren WL(任万龙)2,3; Zhang XH(张旭辉)2,3 ; Zhang, Yan1,3; Lu XB(鲁晓兵)2,3
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| 刊名 | CHEMICAL ENGINEERING JOURNAL
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| 出版日期 | 2024-11-15 |
| 卷号 | 500页码:14 |
| 关键词 | Solid-fluid two-phase flow Flow pattern Hydraulic conveying Pulsating flow Particle size |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2024.156398 |
| 通讯作者 | Zhang, Yan(zhangyan162@imech.ac.cn) |
| 英文摘要 | Vertical pipe hydraulic conveying is currently considered the most promising method for deep-sea mining. The conveying velocity at the inlet of the vertical pipe is often close to a pulsating form due to the influence of the flexible pipe and the marine environment. This study employs a combined Computational Fluid Dynamics (CFD) and Discrete Element Method (DEM) approach to investigate the impact of various particle sizes and concentrations on the flow behavior of solid-fluid two-phase flow in a vertical pipe under pulsating flow. The study reveals that fluid velocities exhibit periodic fluctuations within the vertical pipe under pulsating inlet flow. Moreover, the periodic phenomenon of local increases in particle velocity and concentration becomes more pronounced as particle size and concentration increase. Larger particle sizes increase particle inertia, reducing the ability to follow the fluid and leading to more localized particle aggregation. Therefore, the flow pattern within the vertical pipe transitions from homogeneous flow to plug flow as particle size increases. Variations in fluid-solid interaction forces and particle collision forces are explored to explain this phenomenon. When the particle size exceeds a critical threshold, the collision force surpasses the fluid-solid interaction force, leading to the transition. |
| 分类号 | 一类 |
| WOS关键词 | HYDRAULIC TRANSPORT ; STOKES NUMBER ; FORCE MODELS ; SIMULATION ; COLLISIONS ; FRICTION ; MOTION |
| 资助项目 | National Natural Science Founda-tion of China[12302516] ; National Natural Science Founda-tion of China[12132018] ; China Post-doctoral Science Foundation[2024T170956] ; State Key Laboratory of Ocean Engineering (Shanghai Jiao Tong University) , China[GKZD010089] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001339292100001 |
| 资助机构 | National Natural Science Founda-tion of China ; China Post-doctoral Science Foundation ; State Key Laboratory of Ocean Engineering (Shanghai Jiao Tong University) , China |
| 其他责任者 | Zhang, Yan |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/97076]  |
| 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.Shanghai Jiao Tong Univ, State Key Lab Ocean Engn, Shanghai 200030, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 3.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Ren WL,Zhang XH,Zhang, Yan,et al. The impact of particle size and concentration on the characteristics of solid-fluid two-phase flow in vertical pipe under pulsating flow[J]. CHEMICAL ENGINEERING JOURNAL,2024,500:14. |
| APA | 任万龙,张旭辉,Zhang, Yan,&鲁晓兵.(2024).The impact of particle size and concentration on the characteristics of solid-fluid two-phase flow in vertical pipe under pulsating flow.CHEMICAL ENGINEERING JOURNAL,500,14. |
| MLA | 任万龙,et al."The impact of particle size and concentration on the characteristics of solid-fluid two-phase flow in vertical pipe under pulsating flow".CHEMICAL ENGINEERING JOURNAL 500(2024):14. |
入库方式： OAI收割
来源：力学研究所
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