Particle dynamics in vertical vibration-driven immersed granular systems: A study with resolved computational fluid dynamics-discrete element method
文献类型：期刊论文
| 作者 | Wang C(王驰); Wei, Lubin; An Y(安翼)
|
| 刊名 | PHYSICS OF FLUIDS
 |
| 出版日期 | 2023-12-01 |
| 卷号 | 35期号:12页码:21 |
| ISSN号 | 1070-6631 |
| DOI | 10.1063/5.0179357 |
| 通讯作者 | An, Yi(anyi@imech.ac.cn) |
| 英文摘要 | Vibration-driven immersed granular systems (VIGSs) are ubiquitous in nature and industry. However, particle dynamics in 3D VIGSs is hard to obtain directly from experiments. The resolved Computational Fluid Dynamics-Discrete Element Method (CFD-DEM) is introduced to study a cylindrical VIGS subjected to vertical vibration focusing on particle dynamics. A Voronoi-weighted Gaussian interpolation (VWGI) method is used to convert the discrete particle information into a continuous field. The VWGI method enables the estimation of the continuous field for granular systems, especially for those with large-scale non-uniformity and heterogeneity particle distribution in local cells. The results show that the periodic variation of the system's kinetic energy is caused by the collision between the lower particles and the vibrating wall, and the particle kinetic energy decreases with height rising. A velocity spatial structure of convection, moving from the cylinder center to the sidewall, is observed in both immersed and dry systems away from the bottom. Vibration-driven particles can exhibit a similar flow structure to natural convection. Compared to the dry system, the convection strength and momentum transfer in the VIGS are higher, while the momentum diffusion is lower. The fluid restrains the particle energy acquisition and enhances the energy dissipation of the "heated" particles, while the formation of the fluid convection benefits the particle convection directionality. This resolved CFD-DEM study with the VWGI method provides useful results of the particle dynamics in VIGSs, which could provide guidance for some practical applications in minerals processing involving vibration-driven immersed granular systems. |
| 分类号 | 一类/力学重要期刊 |
| WOS关键词 | MULTIPLIER/FICTITIOUS DOMAIN METHOD ; FICTITIOUS DOMAIN ; FLOWS ; SIMULATION ; APPROXIMATION ; BOUNDARY ; RHEOLOGY ; MODEL ; BED |
| 资助项目 | National Natural Science Foundation of China10.13039/501100001809[12032005] ; National Natural Science Foundation of China10.13039/501100001809[12372386] ; National Natural Science Foundation of China |
| WOS研究方向 | Mechanics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001133053000007 |
| 资助机构 | National Natural Science Foundation of China10.13039/501100001809 ; National Natural Science Foundation of China |
| 其他责任者 | An, Yi |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/94145]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 推荐引用方式 GB/T 7714 | Wang C,Wei, Lubin,An Y. Particle dynamics in vertical vibration-driven immersed granular systems: A study with resolved computational fluid dynamics-discrete element method[J]. PHYSICS OF FLUIDS,2023,35(12):21. |
| APA | 王驰,Wei, Lubin,&安翼.(2023).Particle dynamics in vertical vibration-driven immersed granular systems: A study with resolved computational fluid dynamics-discrete element method.PHYSICS OF FLUIDS,35(12),21. |
| MLA | 王驰,et al."Particle dynamics in vertical vibration-driven immersed granular systems: A study with resolved computational fluid dynamics-discrete element method".PHYSICS OF FLUIDS 35.12(2023):21. |
入库方式： OAI收割
来源：力学研究所
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