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Modelling of Sediment Exchange between Suspended-Load and Bed Material in the Middle and Lower Yellow River, China
Zhao, Lianjun1; Jiang, Enhui1; Chen, Dong2,3; Zhang, Wenjiao1,2,3
2019-08-01
Source PublicationWATER
Volume11Issue:8Pages:28
Corresponding AuthorJiang, Enhui(YRIHR_YRCC@163.com) ; Zhang, Wenjiao(wjzhang2006@163.com)
AbstractThe focus of this paper is on studying novel approaches to estimate sediment exchange between suspended-load and bed material in an unsteady sediment-laden flow with fine-grained sand. The erosion-deposition characteristics of the channel have close relation with the variation of size compositions of both suspended-load and bed material. These aims are addressed by deducing the sediment exchange equations from the mass conservation perspective and establishing a river-sediment mathematical model based on the theory. The model is applied in the middle and lower Yellow River, China, and calibrated and verified under both deposition and erosion conditions using a generalized channel and a large quantity of measured data in the Yellow River basin. The results indicate that the grading curves of suspended-load and bed material calculated by the mathematical model are close to those of the measured data. The temporal and spatial variations in the mean sizes of suspended-load and bed material, flow rate, sediment concentration and erosion or deposition volume estimates during the entire flood process can be accurately predicted. The model performance is considered acceptable for determining the sediment exchange process and the change in channel morphology for unsteady sediment-laden flow.
Keywordsuspended-load bed material size gradation sediment exchange mathematical model
DOI10.3390/w11081543
WOS KeywordNUMERICAL-SIMULATION ; TRANSPORT ; FLOW ; PARAMETERS ; DEPOSITION ; DISCHARGE ; REACH
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2017YFC0405204] ; National Natural Science Foundation of China[51539004] ; National Natural Science Foundation of China[51709124] ; National Natural Science Foundation of China[51779242] ; National Natural Science Foundation of China[41330751] ; Young Elite Scientists Sponsorship Program by CAST[201938]
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China ; Young Elite Scientists Sponsorship Program by CAST
WOS Research AreaWater Resources
WOS SubjectWater Resources
WOS IDWOS:000484561500018
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/69708
Collection中国科学院地理科学与资源研究所
Corresponding AuthorJiang, Enhui; Zhang, Wenjiao
Affiliation1.Yellow River Conservancy Commiss, Yellow River Inst Hydraul Res, Key Lab Yellow River Sediment Res, Zhengzhou 450003, Henan, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Lianjun,Jiang, Enhui,Chen, Dong,et al. Modelling of Sediment Exchange between Suspended-Load and Bed Material in the Middle and Lower Yellow River, China[J]. WATER,2019,11(8):28.
APA Zhao, Lianjun,Jiang, Enhui,Chen, Dong,&Zhang, Wenjiao.(2019).Modelling of Sediment Exchange between Suspended-Load and Bed Material in the Middle and Lower Yellow River, China.WATER,11(8),28.
MLA Zhao, Lianjun,et al."Modelling of Sediment Exchange between Suspended-Load and Bed Material in the Middle and Lower Yellow River, China".WATER 11.8(2019):28.
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