| The impact of particle size and concentration on the characteristics of solid-fluid two-phase flow in vertical pipe under pulsating flow | |
Ren WL(任万龙)1,2; Zhang XH(张旭辉)1,2 ; Zhang, Yan1,3; Lu XB(鲁晓兵)1,2
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| Corresponding Author | Zhang, Yan([email protected]) |
| Source Publication | CHEMICAL ENGINEERING JOURNAL
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| 2024-11-15 | |
| Volume | 500Pages:14 |
| ISSN | 1385-8947 |
| Abstract | 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. |
| Keyword | Solid-fluid two-phase flow Flow pattern Hydraulic conveying Pulsating flow Particle size |
| DOI | 10.1016/j.cej.2024.156398 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001339292100001 |
| WOS Keyword | HYDRAULIC TRANSPORT ; STOKES NUMBER ; FORCE MODELS ; SIMULATION ; COLLISIONS ; FRICTION ; MOTION |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Environmental ; Engineering, Chemical |
| Funding Project | 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] |
| Funding Organization | National Natural Science Founda-tion of China ; China Post-doctoral Science Foundation ; State Key Laboratory of Ocean Engineering (Shanghai Jiao Tong University) , China |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Zhang, Yan |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/97077 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 3.Shanghai Jiao Tong Univ, State Key Lab Ocean Engn, Shanghai 200030, Peoples R China |
| Recommended Citation 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.Rp_Au:Zhang, Yan |
| 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. |
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