Vertical Distribution of Suspended Sediment Concentration in the Unsaturated Jingjiang Reach, Yangtze River, China
文献类型：期刊论文
| 作者 | Liu, Meng3; Chen, Dong3; Sun, Hong-Guang; Zhang, Feng4 |
| 刊名 | FRACTAL AND FRACTIONAL
 |
| 出版日期 | 2023-06-01 |
| 卷号 | 7期号:6页码:456 |
| 关键词 | Hausdorff fractal derivative vertical distribution suspended sediment non-equilibrium unsaturation |
| DOI | 10.3390/fractalfract7060456 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | The Rouse formula and its variants have been widely used to describe the vertical distribution of the sediment concentration in sediment-laden flows in equilibrium. Han's formula extends the Rouse formula to non-equilibrium regimes, where the diffusive flux is still assumed to be Fickian. The turbulent flow and suspension regimes downstream of a mega-reservoir, e.g., the Three Gorges Reservoir, usually exhibit fractal and unsaturated properties, respectively. To characterize the non-Fickian dynamics of suspended sediment and the non-equilibrium regime in natural dammed rivers, this study proposes a new formula for the concentration profile of unsaturated sediment based on the Hausdorff fractal derivative advection-dispersion equation. In addition, we find that the order of the Hausdorff fractal derivative is related to the sizes of the sediment and the degrees of non-equilibrium. Compared to Rouse and Han's formulae, the new formula performs better in describing the sediment concentration profiles in the Jingjiang Reach, approximately 100 km below the Three Gorges Dam. |
| WOS关键词 | TRANSPORT ; DOWNSTREAM ; EQUATION ; FLOW |
| WOS研究方向 | Mathematics |
| WOS记录号 | WOS:001014932800001 |
| 出版者 | MDPI |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/194395]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 2.Hohai Univ, Coll Mech & Mat, Nanjing 210098, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, 11A Datun Rd, Beijing 100101, Peoples R China 4.Hohai Univ, State Key Lab Hydrol Water Resources & Hydraul Eng, Nanjing 210098, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Meng,Chen, Dong,Sun, Hong-Guang,et al. Vertical Distribution of Suspended Sediment Concentration in the Unsaturated Jingjiang Reach, Yangtze River, China[J]. FRACTAL AND FRACTIONAL,2023,7(6):456. |
| APA | Liu, Meng,Chen, Dong,Sun, Hong-Guang,&Zhang, Feng.(2023).Vertical Distribution of Suspended Sediment Concentration in the Unsaturated Jingjiang Reach, Yangtze River, China.FRACTAL AND FRACTIONAL,7(6),456. |
| MLA | Liu, Meng,et al."Vertical Distribution of Suspended Sediment Concentration in the Unsaturated Jingjiang Reach, Yangtze River, China".FRACTAL AND FRACTIONAL 7.6(2023):456. |
入库方式： OAI收割
来源：地理科学与资源研究所
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