A new two-phase flow model based on coupling of the depth-integrated continuum method and discrete element method
文献类型：期刊论文
| 作者 | An Huicong2,3,5; Ouyang Chaojun2,3,4,5 ; Wang Dongpo1
|
| 刊名 | COMPUTERS & GEOSCIENCES
 |
| 出版日期 | 2021 |
| 卷号 | 146页码:104640 |
| ISSN号 | 0098-3004 |
| 关键词 | Two-phase model Depth-integrated continuum Discrete element method Numerical modeling Fluid-solid coupling |
| DOI | 10.1016/j.cageo.2020.104640 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | The evolution of the volume fraction of solid phase, basal entrainment and interactions between the solid and fluid phase have significant impacts on rheological behavior, dynamic characteristics, and volume amplification in some earth-surface flows, including debris flows, hyper-concentration flows, dam-break flows. In this study, we propose a new two-phase flow dynamic model based on coupling of the depth-integrated continuum method and discrete element method (DEM). The fluid phase is computed by the depth-integrated continuum method, while the solid phase is modeled by the discrete element method. The data exchange between the two phases is efficiently handled by setting shared variables between the separate computational frameworks. The basal topography is simultaneously updated by numerically monitoring when solid particles are entrained into the fluid or deposited from the fluid. The current method provides a guiding solution for the common need to couple computations among multiple models. We examine several computational cases and compare the results with the theoretical solution and the experimental results. We conclude that the computational framework has unique advantages, placing it in a position to solve some ticklish issues in the field of fluid-solid interactions. |
| 电子版国际标准刊号 | 1873-7803 |
| 语种 | 英语 |
| WOS记录号 | WOS:000599858100002 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/55044]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 通讯作者 | Ouyang Chaojun |
| 作者单位 | 1.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Pro, Chengdu 610059, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Chinese Acad Sci, Inst Mt Hazards & Environm IMHE, Chengdu 610041, Peoples R China; 4.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China; 5.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Peoples R China; |
| 推荐引用方式 GB/T 7714 | An Huicong,Ouyang Chaojun,Wang Dongpo. A new two-phase flow model based on coupling of the depth-integrated continuum method and discrete element method[J]. COMPUTERS & GEOSCIENCES,2021,146:104640. |
| APA | An Huicong,Ouyang Chaojun,&Wang Dongpo.(2021).A new two-phase flow model based on coupling of the depth-integrated continuum method and discrete element method.COMPUTERS & GEOSCIENCES,146,104640. |
| MLA | An Huicong,et al."A new two-phase flow model based on coupling of the depth-integrated continuum method and discrete element method".COMPUTERS & GEOSCIENCES 146(2021):104640. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。