A depth-averaged SPH-FV landslide dynamic model for evaluating hazard zones
文献类型：期刊论文
| 作者 | Wu, Yuming1; Yang, Zhihua2 |
| 刊名 | COMPUTERS AND GEOTECHNICS
 |
| 出版日期 | 2024-05-01 |
| 卷号 | 169页码:10 |
| 关键词 | Landslide dynamic model Numerical scheme SPH method Finite volume method |
| ISSN号 | 0266-352X |
| DOI | 10.1016/j.compgeo.2024.106210 |
| 通讯作者 | Yang, Zhihua(yangzh99@163.com) |
| 英文摘要 | Thousands of landslides worldwide lead to significant casualties and property damage. A numerical model is crucial for simulating the runout of possible future landslides and generating reliable hazard zone maps. Two main methods can be adopted to simulate motion: one based on the Eulerian description and the other based on the Lagrangian description. Each description offers varying adaptability to simulating landslides. In this paper, we proposed a method of coupling the depth-averaged smoothed particle hydrodynamics (SPH) method and a finite volume scheme with the van Leer splitting (FV-VLS). For the solid phase, we utilized the depth-averaged SPH method to simulate the movement process. The SPH method can track the movement of key parts. In contrast, we employed the FV-VLS based on the Eulerian description to reduce the calculation amount. In 1-D dam break simulation, both the depth-averaged SPH and FV-VLS methods yielded similar results. The 1-D two-phase dam break simulation shows that buoyancy reduces friction and lateral solid stress, increases hydraulic stress, and generates a complex motion process. The Yigong landslide simulation indicates that solid fractions will affect the motion trajectory in the 2-D simulation. A smaller solid fraction will cause the landslide to affect a larger area. |
| WOS关键词 | SMOOTHED PARTICLE HYDRODYNAMICS ; DEBRIS ; AVALANCHE ; SIMULATION ; SYSTEM ; FLOWS |
| 资助项目 | National Natural Science Foundation of China[42277180] ; Key Project of Innovation LREIS[KPI007] |
| WOS研究方向 | Computer Science ; Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001205897200001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China ; Key Project of Innovation LREIS |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/204519]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Yang, Zhihua |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 2.Chinese Acad Geol Sci, Inst Geomech, 11 South Rd Nationality Univ, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Yuming,Yang, Zhihua. A depth-averaged SPH-FV landslide dynamic model for evaluating hazard zones[J]. COMPUTERS AND GEOTECHNICS,2024,169:10. |
| APA | Wu, Yuming,&Yang, Zhihua.(2024).A depth-averaged SPH-FV landslide dynamic model for evaluating hazard zones.COMPUTERS AND GEOTECHNICS,169,10. |
| MLA | Wu, Yuming,et al."A depth-averaged SPH-FV landslide dynamic model for evaluating hazard zones".COMPUTERS AND GEOTECHNICS 169(2024):10. |
入库方式： OAI收割
来源：地理科学与资源研究所
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