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Modelling of Sediment Exchange between Suspended-Load and Bed Material in the Middle and Lower Yellow River, China

文献类型：期刊论文

作者Zhao, Lianjun1; Jiang, Enhui1; Chen, Dong2,3; Zhang, Wenjiao1,2,3
刊名WATER
出版日期2019-08-01
卷号11期号:8页码:28
关键词suspended-load bed material size gradation sediment exchange mathematical model
DOI10.3390/w11081543
通讯作者Jiang, Enhui(YRIHR_YRCC@163.com) ; Zhang, Wenjiao(wjzhang2006@163.com)
英文摘要The 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.
WOS关键词NUMERICAL-SIMULATION ; TRANSPORT ; FLOW ; PARAMETERS ; DEPOSITION ; DISCHARGE ; REACH
资助项目National 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]
WOS研究方向Water Resources
语种英语
WOS记录号WOS:000484561500018
出版者MDPI
资助机构National Key R&D Program of China ; National Natural Science Foundation of China ; Young Elite Scientists Sponsorship Program by CAST
源URL[http://ir.igsnrr.ac.cn/handle/311030/69707]  
专题中国科学院地理科学与资源研究所
通讯作者Jiang, Enhui; Zhang, Wenjiao
作者单位1.Yellow River Conservancy Commiss, Yellow River Inst Hydraul Res, Key Lab Yellow River Sediment Res, Zhengzhou 450003, Henan, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
推荐引用方式
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.

入库方式： OAI收割

来源：地理科学与资源研究所

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