Modeling Bedload Transport Trajectories along a Sine-Generated Channel

doi:10.1134/S0097807819040134

	Modeling Bedload Transport Trajectories along a Sine-Generated Channel
	He, Li 1; Chen, Dong 1; Termini, Donatella 2; Jia, Yafei 3; Zhang, Yaoxin 3
刊名	WATER RESOURCES
	2019-07-01
卷号	46 期号:4 页码:542-552
关键词	meander bedload sediment transport model flume experiment
ISSN号	0097-8078
DOI	10.1134/S0097807819040134
通讯作者	He, 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)
英文摘要	This 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.
资助项目	National 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
WOS关键词	SEDIMENT TRANSPORT ; FLOW ; EVOLUTION
WOS研究方向	Water Resources
语种	英语
出版者	MAIK NAUKA/INTERPERIODICA/SPRINGER
WOS记录号	WOS:000475633200005
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; Hundred Talents Program of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/58162]
专题	中国科学院地理科学与资源研究所
通讯作者	He, Li; Chen, Dong; Termini, Donatella; Jia, Yafei; Zhang, Yaoxin
作者单位	1.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
推荐引用方式 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.