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Modeling Bedload Transport Trajectories along a Sine-Generated Channel
He, Li1; Chen, Dong1; Termini, Donatella2; Jia, Yafei3; Zhang, Yaoxin3
2019-07-01
Source PublicationWATER RESOURCES
ISSN0097-8078
Volume46Issue:4Pages:542-552
Corresponding AuthorHe, Li(heli@igsnrr.ac.cn) ; Chen, Dong(dchen@igsnrr.ac.cn) ; Termini, Donatella(donatella.termini@unipa.it) ; Jia, Yafei(jia@ncche.olemiss.edu) ; Zhang, Yaoxin(yzhang@ncche.olemiss.edu)
AbstractThis study explores the influences of flow discharge and particle size on bedload transport trajectory by applying a depth-averaged two-dimensional model to a 110 degrees sine-generated laboratory flume with wide-and-shallow sections. Calculated results exhibit two erosion regions in a bend: Zone-1-oreside of the point bar near the convex bank and Zone-2-near the apex of the concave bank. Sediments eroded from Zone-1 are mainly transported along the same-side convex bank rather than crossing the channel centerline, indicating the crucial role of longitudinal flow in shaping point bars. Most particles from Zone-2, however, behave more complicated by changing their trajectories with the developing bar-pool topography. Besides, sensitivity analyses indicate that, the shifting of bedload trajectory in the curved channel is not susceptible to particle size while considerably varies with flow discharge. Moving particles in a meandering channel are ultimately constrained within the belt of concave bankcrossing barconcave bank after the bend topography is fully developed and the bed deformation reaches a dynamic equilibrium.
Keywordmeander bedload sediment transport model flume experiment
DOI10.1134/S0097807819040134
WOS KeywordSEDIMENT TRANSPORT ; FLOW ; EVOLUTION
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2017YFC0405203] ; National Natural Science Foundation of China[51579230] ; National Natural Science Foundation of China[41571005] ; National Natural Science Foundation of China[51109198] ; National Natural Science Foundation of China[51279192] ; National Natural Science Foundation of China[51509234] ; National Natural Science Foundation of China[51779242] ; National Natural Science Foundation of China[41330751] ; Hundred Talents Program of Chinese Academy of Sciences
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China ; Hundred Talents Program of Chinese Academy of Sciences
WOS Research AreaWater Resources
WOS SubjectWater Resources
WOS IDWOS:000475633200005
PublisherMAIK NAUKA/INTERPERIODICA/SPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/58163
Collection中国科学院地理科学与资源研究所
Corresponding AuthorHe, Li; Chen, Dong; Termini, Donatella; Jia, Yafei; Zhang, Yaoxin
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
2.Univ Palermo, Dept Engn, Palermo, Italy
3.Univ Mississippi, Natl Ctr Computat Hydrosci & Engn, 327 Brevard Univ, University, MS 38677 USA
Recommended Citation
GB/T 7714
He, Li,Chen, Dong,Termini, Donatella,et al. Modeling Bedload Transport Trajectories along a Sine-Generated Channel[J]. WATER RESOURCES,2019,46(4):542-552.
APA He, Li,Chen, Dong,Termini, Donatella,Jia, Yafei,&Zhang, Yaoxin.(2019).Modeling Bedload Transport Trajectories along a Sine-Generated Channel.WATER RESOURCES,46(4),542-552.
MLA He, Li,et al."Modeling Bedload Transport Trajectories along a Sine-Generated Channel".WATER RESOURCES 46.4(2019):542-552.
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