Simulation of two-phase debris flow scouring bridge pier
文献类型：期刊论文
| 作者 | Liu Wei1 ; He Si-ming1,2,3
|
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2017-11-01 |
| 卷号 | 14期号:11页码:2168-2181 |
| 关键词 | Pier Scouring Debris Flow Two-phase Model Numerical Simulation |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-017-4458-0 |
| 通讯作者 | HE Si-ming |
| 英文摘要 | Debris flows are typical two-phase flows, which commonly accompany erosion in mountainous areas, and may destroy bridge engineering by scouring. In this study, a physically-based two-phase model is applied for the simulation of debris flow scouring of bridge pier. In this model, the shear stress of debris flow on an erodible bed is considered to be a function of the solid shear stress, fluid shear stress, and volume fraction; accordingly, the erosion is incorporated into the two-phase model. Using a highaccuracy computational scheme based on the finite volume method, the model is employed for simulating a dynamic debris flow over an erodible bed. The numerical results are consistent with the experimental data, and verify the feasibility of the two-phase model. Moreover, a simple numerical test is performed to exhibit the fundamental behaviour of debris flow scouring of bridge pier, which shows that the degree of erosion on each side of the pier is higher compared to other areas. The scouring depth is influenced by the variations of solid volume fraction and velocity of debris flow and pier width. |
| 语种 | 英语 |
| WOS记录号 | WOS:000415351800003 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/19182]  |
| 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 Journal of Mountain Science _Journal of Mountain Science-2017_Vol14 No.11 |
| 作者单位 | 1.Chinese Acad Sci, IMHE, Chengdu 610041, Sichuan, Peoples R China 2.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, 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 Si-ming. Simulation of two-phase debris flow scouring bridge pier[J]. JOURNAL OF MOUNTAIN SCIENCE,2017,14(11):2168-2181. |
| APA | Liu Wei,&He Si-ming.(2017).Simulation of two-phase debris flow scouring bridge pier.JOURNAL OF MOUNTAIN SCIENCE,14(11),2168-2181. |
| MLA | Liu Wei,et al."Simulation of two-phase debris flow scouring bridge pier".JOURNAL OF MOUNTAIN SCIENCE 14.11(2017):2168-2181. |
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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