A hybrid scaling coarse-graining method based on a computational fluid dynamics-discrete element method
文献类型：期刊论文
| 作者 | Li, Longwei1,2; Li, Jian1; Li, Shichang1,2; Dai, Zhangjun1; Chen, Shanxiong1; Wei, Xiaoyang1,2 |
| 刊名 | COMPUTATIONAL PARTICLE MECHANICS
 |
| 出版日期 | 2024-11-01 |
| 页码 | 15 |
| 关键词 | CFD-DEM Hybrid scaling coarse-grained Scaled model Coarse-graining Fluid-solid coupling |
| ISSN号 | 2196-4378 |
| DOI | 10.1007/s40571-024-00859-z |
| 英文摘要 | A computational fluid dynamics-discrete element method (CFD-DEM) is an important method for simulating the interaction and movement of fluid and particulate materials. Its ability to simulate the mechanical behavior of particulate materials has led to its widespread research and application. However, due to limitations in computer computing power, CFD-DEM is limited in the number of particles it can simulate, making it difficult to achieve simulations at an engineering scale. To solve this issue, this study proposes a hybrid scaling coarse-graining method (HSCGM). This method significantly reduces the number of particles by replacing a collection of small particles with a single large particle. Additionally, the principles of particle motion balance, energy conservation, and the exact scaling model are used to determine the accurate relationship for the interaction force between coarse-grained particles. Finally, the accuracy and efficiency of the calculations are analyzed through Ergun and settling tests. The results show that the HSCGM more accurately simulates the interaction forces between particles and their motion behavior, while significantly improving computational efficiency. The advantages and disadvantages of other fluid-solid coupling methods are also discussed. The HSCGM further advances the application prospects of CFD-DEM at an engineering scale. |
| 资助项目 | Key Research and Development Program of Hubei Province ; Youth Innovation Promotion Association CAS[2022331] ; [2022BAA036] |
| WOS研究方向 | Mathematics ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001345891500001 |
| 出版者 | SPRINGER INT PUBL AG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42998]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Jian |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Longwei,Li, Jian,Li, Shichang,et al. A hybrid scaling coarse-graining method based on a computational fluid dynamics-discrete element method[J]. COMPUTATIONAL PARTICLE MECHANICS,2024:15. |
| APA | Li, Longwei,Li, Jian,Li, Shichang,Dai, Zhangjun,Chen, Shanxiong,&Wei, Xiaoyang.(2024).A hybrid scaling coarse-graining method based on a computational fluid dynamics-discrete element method.COMPUTATIONAL PARTICLE MECHANICS,15. |
| MLA | Li, Longwei,et al."A hybrid scaling coarse-graining method based on a computational fluid dynamics-discrete element method".COMPUTATIONAL PARTICLE MECHANICS (2024):15. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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