Non-negative depth reconstruction for a two-dimensional partial inertial inundation model
文献类型：期刊论文
| 作者 | Zhang, Hongbin1,2; Wang, Yueling3 ; Liang, Qiuhua2; Smith, Luke S.2; Kilsby, Chris G.2
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| 刊名 | JOURNAL OF HYDROINFORMATICS
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| 出版日期 | 2014 |
| 卷号 | 16期号:5页码:1158-1177 |
| 关键词 | Complex Topography Flood Inundation Hydraulic Model Non-negative Depth Reconstruction Partial Inertial Model Wetting And Drying |
| 文献子类 | Article |
| 英文摘要 | This paper proposes a non-negative depth reconstruction method for improving the numerical performance of a partial inertial model (PIM) for applications involving steep-slope and low-friction conditions. The PIM solves the continuity equation of two-dimensional (2D) shallow water equations (SWEs) with the interface fluxes evaluated by a simplified momentum equation that partially restores the inertial terms. In applying the PIM to flood simulations, a practical challenge is to represent complex topography and to track the moving wet-dry interface without resulting in negative water depths. Another challenge is to avoid the numerical issue caused by the lack of physical diffusive terms when it is applied to low-friction cases. To cope with these difficulties, the PIM is improved by introducing a non-negative depth reconstruction method, featuring two different ways for calculating the interface fluxes. The performance of the improved PIMs is investigated through applications to several theoretical and practical benchmark test cases. The comparison of the numerical results against analytical solutions or predictions from the original PIM and a full 2D finite-volume hydrodynamic model shows that the proposed reconstruction method can avoid non-negative water depth predictions, and improve the numerical performance of the original PIM when applied to steep-slope and low-friction conditions. |
| WOS关键词 | SHALLOW-WATER EQUATIONS ; PEARL-RIVER ESTUARY ; FLOOD INUNDATION ; NUMERICAL-MODEL ; SOURCE TERMS ; 1D ; UNCERTAINTY ; SIMULATION ; FLOWS |
| 语种 | 英语 |
| WOS记录号 | WOS:000348519600012 |
| 出版者 | IWA PUBLISHING |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/68491]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Yueling |
| 作者单位 | 1.Wuhan Univ, Sch Water Resources & Hydropower Engn, Wuhan 430072, Peoples R China 2.Newcastle Univ, Sch Civil Engn & Geosci, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Hongbin,Wang, Yueling,Liang, Qiuhua,et al. Non-negative depth reconstruction for a two-dimensional partial inertial inundation model[J]. JOURNAL OF HYDROINFORMATICS,2014,16(5):1158-1177. |
| APA | Zhang, Hongbin,Wang, Yueling,Liang, Qiuhua,Smith, Luke S.,&Kilsby, Chris G..(2014).Non-negative depth reconstruction for a two-dimensional partial inertial inundation model.JOURNAL OF HYDROINFORMATICS,16(5),1158-1177. |
| MLA | Zhang, Hongbin,et al."Non-negative depth reconstruction for a two-dimensional partial inertial inundation model".JOURNAL OF HYDROINFORMATICS 16.5(2014):1158-1177. |
入库方式： OAI收割
来源：地理科学与资源研究所
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