An optimized volume of fluid method for modelling three-dimensional debris flows. Implementation in OpenFOAM, validation, and application in the Aiwa Watershed, Beijing
文献类型：期刊论文
| 作者 | Zhang Y(张岩)1,2; Lyu, Liqun2; Li P(李鹏)1
|
| 刊名 | COMPUTERS AND GEOTECHNICS
 |
| 出版日期 | 2022-04-01 |
| 卷号 | 144页码:14 |
| 关键词 | Debris flow Volume of fluid Herschel-Bulkley Aiwa Watershed OpenFOAM |
| ISSN号 | 0266-352X |
| DOI | 10.1016/j.compgeo.2022.104651 |
| 通讯作者 | Lyu, Liqun(lvliqun@bjfu.edu.cn) |
| 英文摘要 | Debris flows are a common type of geological hazard. They move down slopes at rapid speeds, causing severe damage to buildings and humans. It is of great significance to study the development and movement characteristics of debris flows. In this study, we developed a numerical method of simulating the movement of debris flows. The phase fraction was used to represent the contents of the debris flow components. The Herschel-Bulkley-Papanastasiou model was used to simulate the movement of the fine particle-water mixture in the debris flow, and the pressure-dependent Coulomb viscoplastic model was used to describe the movement of the gravel-size particles. The interface between the debris flow and the air was obtained using the volume of fluid method. The above models were implanted in OpenFOAM. Finally, indoor experimental data were used to verify the numerical method developed in this study, and the experimental and simulation results were found to be in good agreement. The proposed method was then applied to debris flow prediction in the Aiwa Watershed, Beijing. The homogeneous flow model developed in this study can significantly reduce the number of calculations required and can be used for the three-dimensional simulation of large-scale debris flows. |
| WOS关键词 | NUMERICAL-SIMULATION ; RHEOLOGICAL PROPERTIES ; MIYUN COUNTY ; BEHAVIOR ; TRANSPORT ; VELOCITY ; FRACTION |
| 资助项目 | Beijing Municipal Education Com-mission, China ; Innovative Trans-disciplinary Programme Ecological Restoration Engineering |
| WOS研究方向 | Computer Science ; Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000754143700003 |
| 资助机构 | Beijing Municipal Education Com-mission, China ; Innovative Trans-disciplinary Programme Ecological Restoration Engineering |
| 其他责任者 | Lyu, Liqun |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/88635]  |
| 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.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 2.Beijing Forestry Univ, Sch Soil & Water Conservat, Beijing 100083, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zhang Y,Lyu, Liqun,Li P. An optimized volume of fluid method for modelling three-dimensional debris flows. Implementation in OpenFOAM, validation, and application in the Aiwa Watershed, Beijing[J]. COMPUTERS AND GEOTECHNICS,2022,144:14. |
| APA | 张岩,Lyu, Liqun,&李鹏.(2022).An optimized volume of fluid method for modelling three-dimensional debris flows. Implementation in OpenFOAM, validation, and application in the Aiwa Watershed, Beijing.COMPUTERS AND GEOTECHNICS,144,14. |
| MLA | 张岩,et al."An optimized volume of fluid method for modelling three-dimensional debris flows. Implementation in OpenFOAM, validation, and application in the Aiwa Watershed, Beijing".COMPUTERS AND GEOTECHNICS 144(2022):14. |
入库方式： OAI收割
来源：力学研究所
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