Coupled modelling of flood due to natural landslide dam breach
文献类型：期刊论文
| 作者 | Huang W ; Cao ZX; Yue ZY; Pender G; Zhou JF(周济福); Huang, W
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| 刊名 | PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-WATER MANAGEMENT
 |
| 出版日期 | 2012-11-01 |
| 卷号 | 165期号:10页码:525-542 |
| 关键词 | floods & floodworks hydraulics & hydrodynamics mathematical modelling Failure Simulation River Hydraulics Erosion China Lake |
| ISSN号 | 1741-7589 |
| 产权排序 | [Huang, Wei;Cao, Zhixian; Pender, Gareth] Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Peoples R China; [Cao, Zhixian; Pender, Gareth] Heriot Watt Univ, Inst Infrastruct & Environm, Edinburgh, Midlothian, Scotland; [Yue, Zhiyuan] Changjiang Waterway Planning Design & Res Inst, Wuhan, Peoples R China; [Zhou, Jifu] Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China |
| 通讯作者 | Huang, W ; Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Peoples R China. |
| 合作状况 | 国际 |
| 中文摘要 | A coupled two-dimensional mathematical model is presented for a flood due to natural landslide dam breach. A new numerical algorithm is developed, preserving the well-balanced property between the flux and source terms of the momentum conservation equations over a mobile bed. It allows for the wetting-drying transition to be properly resolved. Equally importantly, the spatially variable size of the sediments of natural landslide dams is taken into account in estimating bed sediment entrainment flux. The model is first tested against flume experiments and then applied to a case study of the Tangjiashan landslide dam, the largest of its kind generated by the 2008 Wenchuan earthquake in Sichuan Province, China. Compared with field observations, the widening and deepening of the breach along with the flood hydrographs are reproduced fairly well by the present model as the heterogeneity of the dam material is incorporated. In contrast, when the heterogeneous composition of the natural landslide dam is ignored using a fixed sediment size, the model fails even if the parameters related to roughness, entrainment flux and mass collapse are largely tuned. An appropriate account of the heterogeneous composition of natural dams is therefore significant. |
| 学科主题 | 环境流体力学 |
| 分类号 | 二类/Q2 |
| 收录类别 | SCI ; EI |
| 资助信息 | This work is funded by National Key Basic Research and Development Program (973 Program) of China (grant 2007CB714106) and the Natural Science Foundation of China (grants 10932012 and 11172217). Special thanks are due to Dr D. Y. Zhong for supplying the observed field data and for his constructive suggestions. |
| 原文出处 | http://dx.doi.org/10.1680/wama.12.00017 |
| 语种 | 英语 |
| WOS记录号 | WOS:000310437200003 |
| 公开日期 | 2013-01-18 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/46655]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 通讯作者 | Huang, W |
| 推荐引用方式 GB/T 7714 | Huang W,Cao ZX,Yue ZY,et al. Coupled modelling of flood due to natural landslide dam breach[J]. PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-WATER MANAGEMENT,2012,165(10):525-542. |
| APA | Huang W,Cao ZX,Yue ZY,Pender G,Zhou JF,&Huang, W.(2012).Coupled modelling of flood due to natural landslide dam breach.PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-WATER MANAGEMENT,165(10),525-542. |
| MLA | Huang W,et al."Coupled modelling of flood due to natural landslide dam breach".PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-WATER MANAGEMENT 165.10(2012):525-542. |
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来源：力学研究所
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