A Coupled 1D-2D Hydrodynamic Model for Urban Flood Inundation
Hydrodynamic models were commonly used for flood risk management in urban area. This paper presents initial efforts in developing an urban flood inundation model by coupling a one-dimensional (1D) model with a two-dimensional (2D) model to overcome the drawbacks of each individual modelling approach...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2017/2819308 |
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| author | Yuyan Fan Tianqi Ao Haijun Yu Guoru Huang Xiaodong Li |
| author_facet | Yuyan Fan Tianqi Ao Haijun Yu Guoru Huang Xiaodong Li |
| author_sort | Yuyan Fan |
| collection | DOAJ |
| description | Hydrodynamic models were commonly used for flood risk management in urban area. This paper presents initial efforts in developing an urban flood inundation model by coupling a one-dimensional (1D) model with a two-dimensional (2D) model to overcome the drawbacks of each individual modelling approach, and an additional module is used to simulate the rainfall-runoff process in study areas. For the 1D model, the finite difference method is used to discretize the Saint-Venant equations. An implicit dual time-stepping method (DTS) is then applied to a 2D finite volume model for an inundation simulation to improve computational efficiency. A total of four test cases are applied to validate the proposed model; its performance is demonstrated by a comparison with an explicit scheme and previously published results (an extensive physical experiment benchmark case, a vertical linking example, and two real drainage cases with actual topography). Results demonstrate that the proposed model is accurate and efficient in simulating urban floods for practical applications. |
| format | Article |
| id | doaj-art-c819b4e573524af99906c510ebda363d |
| institution | DOAJ |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj-art-c819b4e573524af99906c510ebda363d2025-08-20T03:19:29ZengWileyAdvances in Meteorology1687-93091687-93172017-01-01201710.1155/2017/28193082819308A Coupled 1D-2D Hydrodynamic Model for Urban Flood InundationYuyan Fan0Tianqi Ao1Haijun Yu2Guoru Huang3Xiaodong Li4College of Water Resources and Hydropower, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, ChinaCollege of Water Resources and Hydropower, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, ChinaState Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, Research Center on Flood and Drought Disaster Reduction of the Ministry of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaState Key Laboratory of Subtropical Building Science, School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, ChinaCollege of Water Resources and Hydropower, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, ChinaHydrodynamic models were commonly used for flood risk management in urban area. This paper presents initial efforts in developing an urban flood inundation model by coupling a one-dimensional (1D) model with a two-dimensional (2D) model to overcome the drawbacks of each individual modelling approach, and an additional module is used to simulate the rainfall-runoff process in study areas. For the 1D model, the finite difference method is used to discretize the Saint-Venant equations. An implicit dual time-stepping method (DTS) is then applied to a 2D finite volume model for an inundation simulation to improve computational efficiency. A total of four test cases are applied to validate the proposed model; its performance is demonstrated by a comparison with an explicit scheme and previously published results (an extensive physical experiment benchmark case, a vertical linking example, and two real drainage cases with actual topography). Results demonstrate that the proposed model is accurate and efficient in simulating urban floods for practical applications.http://dx.doi.org/10.1155/2017/2819308 |
| spellingShingle | Yuyan Fan Tianqi Ao Haijun Yu Guoru Huang Xiaodong Li A Coupled 1D-2D Hydrodynamic Model for Urban Flood Inundation Advances in Meteorology |
| title | A Coupled 1D-2D Hydrodynamic Model for Urban Flood Inundation |
| title_full | A Coupled 1D-2D Hydrodynamic Model for Urban Flood Inundation |
| title_fullStr | A Coupled 1D-2D Hydrodynamic Model for Urban Flood Inundation |
| title_full_unstemmed | A Coupled 1D-2D Hydrodynamic Model for Urban Flood Inundation |
| title_short | A Coupled 1D-2D Hydrodynamic Model for Urban Flood Inundation |
| title_sort | coupled 1d 2d hydrodynamic model for urban flood inundation |
| url | http://dx.doi.org/10.1155/2017/2819308 |
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