| A two-layer model for the intrusion of two-phase debris flow into a river | |
Liu, Wei1,2 ; He, Siming1,2,3
| |
| 2018 | |
| Source Publication | QUARTERLY JOURNAL OF ENGINEERING GEOLOGY AND HYDROGEOLOGY
 |
| ISSN | 1470-9236 |
| Volume | 51Issue:1Pages:113-123 |
| Subtype | Article |
| Contribution Rank | 1 |
| Abstract | The intrusion of debris flow into a river is a common phenomenon that usually occurs in mountainous areas. Debris flow, unlike a landslide, has a complex component that makes its simulation more difficult. In this paper, a two-layer, 2D model is presented for use in the preliminary study of debris flow intruding into a river. In this model, the upper layer is assumed to be a single-phase flow and the lower layer to be a solid-liquid two-phase flow. The drag force between the fluid and solid phases of the debris flow is considered in this model. The basal friction term of the debris flow is considered as the phase-averaged value of the solid shear stresses and fluid shear stresses. A numerical method based on the finite-volume method is proposed to solve the complex model equations involved. Several numerical tests were performed to confirm the feasibility of the proposed numerical method and model. The numerical results yielded a reasonable prediction of debris flow motion and tsunami wave generation and illustrate the complex interplay between the debris flow and tsunami waves. The characteristics of the river have extra effects on the distribution of subaqueous debris flow (e.g. flow velocity) and should not be neglected. |
| Keyword | debris flow |
| DOI | 10.1144/qjegh2017-071 |
| Indexed By | SCI |
| WOS Keyword | SHALLOW-WATER EQUATIONS ; HYPERBOLIC CONSERVATION-LAWS ; NUMERICAL-SOLUTION ; GRANULAR FLOWS ; FREE-SURFACE ; DAM-BREAK ; TOPOGRAPHY ; COMPUTATION ; SIMULATION ; AVALANCHES |
| Language | 英语 |
| Quartile | 4区 |
| Funding Project | NSFC[41272346] ; NSFC[41101008] ; Science and Technology support plan of Sichuan province[2016SZ0067] |
| TOP | 否 |
| WOS Research Area | Engineering ; Geology |
| WOS Subject | Engineering, Geological ; Geosciences, Multidisciplinary |
| WOS ID | WOS:000429072000013 |
| Funding Organization | NSFC ; Science and Technology support plan of Sichuan province |
| Publisher | GEOLOGICAL SOC PUBL HOUSE |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/20907 |
| Collection | 山地灾害与地表过程重点实验室 |
| Corresponding Author | Liu, Wei |
| Affiliation | 1.Chinese Acad Sci, Key Lab Mt Hazards & Surface Proc, Chengdu, Sichuan, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Sichuan, Peoples R China 3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Chengdu, Sichuan, 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, Siming. A two-layer model for the intrusion of two-phase debris flow into a river[J]. QUARTERLY JOURNAL OF ENGINEERING GEOLOGY AND HYDROGEOLOGY,2018,51(1):113-123. |
| APA | Liu, Wei,&He, Siming.(2018).A two-layer model for the intrusion of two-phase debris flow into a river.QUARTERLY JOURNAL OF ENGINEERING GEOLOGY AND HYDROGEOLOGY,51(1),113-123. |
| MLA | Liu, Wei,et al."A two-layer model for the intrusion of two-phase debris flow into a river".QUARTERLY JOURNAL OF ENGINEERING GEOLOGY AND HYDROGEOLOGY 51.1(2018):113-123. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| A two-layer model fo（2288KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment