High-efficiency calculation method for watershed rainfall-runoff routing using one-dimensional dynamic wave equations | |
Li Jun1![]() ![]() | |
刊名 | JOURNAL OF MOUNTAIN SCIENCE
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2017-10-01 | |
卷号 | 14期号:10页码:2097-2105 |
关键词 | Dynamic Wave Flood Routing Channel Routing Overland Flow |
ISSN号 | 1672-6316 |
DOI | 10.1007/s11629-017-4407-y |
通讯作者 | LI Jun |
文献子类 | Article |
英文摘要 | Efficiency in solving the Saint-Venant equations for watershed rainfall-runoff routing is important in flood hydrology. This paper presents a high-efficiency numerical solution of one-dimensional dynamic wave equations (HEDWE) for watershed rainfall-runoff routing, in which the full momentum equation is written as a quadratic equation with only one unknown variable Q, water depth is derived from the continuity equation using the two-step predictor-corrector method, and the discrete scheme is the explicit upwind scheme. The results of numerical tests showed the HEDWE approach has several major advantages. 1) It is a stable numerical method, even for an initially dry area. 2) Its computational efficiency is higher than 4.76E+05 times/s. 3) It can be used for overland flow, river flow, and combinations thereof. The primary disadvantages of the HEDWE approach are its unsuitability for rapidly varying flow, such as dam-break floods. |
WOS关键词 | HIGH-RESOLUTION ; FLOW ; SIMULATION ; CHANNELS ; MODELS |
语种 | 英语 |
WOS记录号 | WOS:000412313000016 |
资助机构 | National Natural Science Foundation of China(41501046) ; Innovation Program of Guangdong Province, China(2016-14) |
内容类型 | 期刊论文 |
源URL | [http://ir.imde.ac.cn/handle/131551/19101] ![]() |
专题 | Journal of Mountain Science _Journal of Mountain Science-2017_Vol14 No.10 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
作者单位 | 1.Chinese Acad Sci, Key Lab Mt Surface Proc & Hazards, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China 2.Guangdong Acad Sci, Guangzhou Inst Geog, Guangzhou 510070, Guangdong, Peoples R China |
推荐引用方式 GB/T 7714 | Li Jun,Guo Xiao-jun,Zhao Ling-ling. High-efficiency calculation method for watershed rainfall-runoff routing using one-dimensional dynamic wave equations[J]. JOURNAL OF MOUNTAIN SCIENCE,2017,14(10):2097-2105. |
APA | Li Jun,Guo Xiao-jun,&Zhao Ling-ling.(2017).High-efficiency calculation method for watershed rainfall-runoff routing using one-dimensional dynamic wave equations.JOURNAL OF MOUNTAIN SCIENCE,14(10),2097-2105. |
MLA | Li Jun,et al."High-efficiency calculation method for watershed rainfall-runoff routing using one-dimensional dynamic wave equations".JOURNAL OF MOUNTAIN SCIENCE 14.10(2017):2097-2105. |
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