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A two-layer model for the intrusion of two-phase debris flow into a river
Liu, Wei1,2; He, Siming1,2,3
2018
Source PublicationQUARTERLY JOURNAL OF ENGINEERING GEOLOGY AND HYDROGEOLOGY
ISSN1470-9236
Volume51Issue:1Pages:113-123
SubtypeArticle
Contribution Rank1
AbstractThe 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.
Keyworddebris flow
DOI10.1144/qjegh2017-071
Indexed BySCI
WOS KeywordSHALLOW-WATER EQUATIONS ; HYPERBOLIC CONSERVATION-LAWS ; NUMERICAL-SOLUTION ; GRANULAR FLOWS ; FREE-SURFACE ; DAM-BREAK ; TOPOGRAPHY ; COMPUTATION ; SIMULATION ; AVALANCHES
Language英语
Quartile4区
Funding ProjectNSFC[41272346] ; NSFC[41101008] ; Science and Technology support plan of Sichuan province[2016SZ0067]
TOP
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000429072000013
Funding OrganizationNSFC ; Science and Technology support plan of Sichuan province
PublisherGEOLOGICAL SOC PUBL HOUSE
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/20907
Collection山地灾害与地表过程重点实验室
Corresponding AuthorLiu, Wei
Affiliation1.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.
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