| Simulation of two-phase debris flow scouring bridge pier | |
Liu Wei1 ; He Si-ming1,2,3
| |
| 2017 | |
| Source Publication | JOURNAL OF MOUNTAIN SCIENCE
 |
| ISSN | 1672-6316 |
| EISSN | 1993-0321 |
| Volume | 14Issue:11Pages:2168-2181 |
| Subtype | Article |
| Abstract | 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. |
| Keyword | Pier Scouring Debris Flow Two-phase Model Numerical Simulation |
| WOS Headings | Science & Technology ; Life Sciences & Biomedicine |
| DOI | 10.1007/s11629-017-4458-0 |
| WOS Subject Extended | Environmental Sciences & Ecology |
| Indexed By | SCI |
| WOS Keyword | SHALLOW-WATER EQUATIONS ; DAM-BREAK FLOWS ; LOCAL SCOUR ; MODEL ; BEDS ; SURFACE ; FLUID ; ENTRAINMENT ; PROPAGATION ; AVALANCHE |
| Language | 英语 |
| Quartile | 4区 |
| TOP | 否 |
| WOS Subject | Environmental Sciences |
| WOS ID | WOS:000415351800003 |
| Funding Organization | NSFC-ICIMOD(41661144041) ; Key Research and Development Program(2017SZ0041) ; Sichuan Province Science and Technology Support Project(2016SZ0067) |
| Publisher | SCIENCE PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/19182 |
| Collection | 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 |
| Corresponding Author | He Si-ming |
| Affiliation | 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 |
| First Author Affilication | 中国科学院水利部成都山地灾害与环境研究所 |
| Corresponding Author Affilication | 中国科学院水利部成都山地灾害与环境研究所 |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Simulationoftwo__省略_（1586KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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