Experiments on Longitudinal and Transverse Bedload Transport in Sine-Generated Meandering Channels
文献类型：期刊论文
| 作者 | He, Li1 ; Chen, Dong1,2; Termini, Donatella3; Zhang, Shiyan1; Zhu, Zhenhui4
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| 刊名 | APPLIED SCIENCES-BASEL
 |
| 出版日期 | 2021-07-01 |
| 卷号 | 11期号:14页码:13 |
| 关键词 | bedload transport meandering channels experiments |
| DOI | 10.3390/app11146560 |
| 通讯作者 | Chen, Dong(dchen@igsnrr.ac.cn) |
| 英文摘要 | Bedload grains in consecutive meandering bends either move longitudinally or across the channel centerline. This study traces and quantifies the grains' movement in two laboratorial sine-generated channels, i.e., one with deflection angle theta(0) = 30 degrees and the other 110 degrees. The grains originally paved along the channels are uniform in size with D = 1 mm and are dyed in various colors, according to their initial location. The experiments recorded the changes in the flow patterns, bed deformation, and the gain-loss distribution of the colored grains in the pool-bar complexes. We observed the formation of two types of erosion zones during the process of the bed deformation, i.e., Zone 1 in the foreside of the point bars and Zone 2 near the concave bank downstream of the bend apexes. Most grains eroded from Zone 1 are observed moving longitudinally as opposed to crossing the channel centerline. Contrastingly, the dominant moving direction of the grains eroded from Zone 2 changes from the longitudinal direction to the transversal one as the bed topography evolves. Besides, most building material of the point bars comes from the upstream bends, although low- and highly curved channels behave differently. |
| WOS关键词 | BEND THEORY |
| 资助项目 | National Key R&D Program of China[2017YFC0405203] ; National Natural Science Foundation of China[51779242] ; National Natural Science Foundation of China[51979264] |
| WOS研究方向 | Chemistry ; Engineering ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000675949900001 |
| 出版者 | MDPI |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/163703]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Chen, Dong |
| 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 Chinese Acad Sci, Coll Resources & Environm, Beijing 100101, Peoples R China 3.Univ Palermo, Dept Engn, I-90128 Palermo, Italy 4.Yellow River Inst Hydraul Res, Zhengzhou 450003, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Li,Chen, Dong,Termini, Donatella,et al. Experiments on Longitudinal and Transverse Bedload Transport in Sine-Generated Meandering Channels[J]. APPLIED SCIENCES-BASEL,2021,11(14):13. |
| APA | He, Li,Chen, Dong,Termini, Donatella,Zhang, Shiyan,&Zhu, Zhenhui.(2021).Experiments on Longitudinal and Transverse Bedload Transport in Sine-Generated Meandering Channels.APPLIED SCIENCES-BASEL,11(14),13. |
| MLA | He, Li,et al."Experiments on Longitudinal and Transverse Bedload Transport in Sine-Generated Meandering Channels".APPLIED SCIENCES-BASEL 11.14(2021):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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