Two-dimensional Dynamics Simulation of Two-phase Debris Flow
文献类型：期刊论文
| 作者 | Liu, Wei1,2 ; He, Siming1,2,3; Ouyang, Chaojun1,2,3
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| 刊名 | ACTA GEOLOGICA SINICA-ENGLISH EDITION
 |
| 出版日期 | 2017-10-01 |
| 卷号 | 91期号:5页码:1873-1883 |
| 关键词 | two-phase debris flow numerical simulation frictional resistance drag force |
| ISSN号 | 1000-9515 |
| DOI | 10.1111/1755-6724.13416 |
| 英文摘要 | To investigate the movement mechanism of debris flow, a two-dimensional, two-phase, depth-integrated model is introduced. The model uses Mohr-Coulomb plasticity for the solid rheology, and the fluid stress is modeled as a Newtonian fluid. The interaction between solid and liquid phases, which plays a major role in debris flow movement, is assumed to consist of drag and buoyancy forces. The applicability of drag force formulas is discussed. Considering the complex interaction between debris flow and the bed surface, a combined friction boundary condition is imposed on the bottom, and this is also discussed. To solve the complex model equations, a numerical method with second-order accuracy based on the finite volume method is proposed. Several numerical experiments are performed to verify the feasibilities of model and numerical schemes. Numerical results demonstrate that different solid volume fractions substantially affect debris flow movement. |
| 语种 | 英语 |
| WOS记录号 | WOS:000415693400024 |
| 出版者 | WILEY |
| 源URL | [http://ir.imde.ac.cn/handle/131551/20753]  |
| 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 | He, Siming |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Sichuan, Peoples R China 2.Chinese Acad Sci, IMHE, Chengdu 610041, Sichuan, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Wei,He, Siming,Ouyang, Chaojun. Two-dimensional Dynamics Simulation of Two-phase Debris Flow[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2017,91(5):1873-1883. |
| APA | Liu, Wei,He, Siming,&Ouyang, Chaojun.(2017).Two-dimensional Dynamics Simulation of Two-phase Debris Flow.ACTA GEOLOGICA SINICA-ENGLISH EDITION,91(5),1873-1883. |
| MLA | Liu, Wei,et al."Two-dimensional Dynamics Simulation of Two-phase Debris Flow".ACTA GEOLOGICA SINICA-ENGLISH EDITION 91.5(2017):1873-1883. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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