Numerical Simulation of Unsteady Hyperconcentrated Sediment-Laden Flow in the Yellow River
文献类型：SCI/SSCI论文
| 作者 | He L. |
| 发表日期 | 2012 |
| 关键词 | Numerical simulation One-dimensional model Hyperconcentrated sediment-laden flow Yellow river suspended sediment model transport uncertainty inundation calibration floods bed |
| 英文摘要 | The major obstacles to simulating flood flow in the Yellow River are its high sediment concentration, complex compound cross section, and rapid change in channel planform. This paper presents an improved one-dimensional numerical model that takes into account the effect of sediment concentration and bed change on mass and momentum conservation of flood flow in the Yellow River. The model is calibrated and then validated by simulating three individual flood events. Results show that an increase in sediment concentration leads to a reduction in flood wave celerity and peak discharge. The generalized likelihood uncertainty estimation (GLUE) method is used to evaluate the uncertainty of modeling results. A sensitivity index, analogous to the Nash-Sutcliffe efficiency factor, is adopted to quantify the sensitivity of calibration parameters. The modeling results are sensitive to the choice of Manning's roughness coefficient and the empirical recovery coefficient for suspended sediment transport at reaches of transitional channel planform. DOI: 10.1061/(ASCE)HY.1943-7900.0000599. (C) 2012 American Society of Civil Engineers. |
| 出处 | Journal of Hydraulic Engineering-Asce |
| 卷 | 138 |
| 期 | 11 |
| 页 | 958-969 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0733-9429 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/30864]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | He L.. Numerical Simulation of Unsteady Hyperconcentrated Sediment-Laden Flow in the Yellow River. 2012. |
入库方式： OAI收割
来源：地理科学与资源研究所
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