A dynamic bidirectional coupled surface flow model for flood inundation simulation
<p>Flood disasters frequently threaten people and property all over the world. Therefore, an effective numerical model is required to predict the impacts of floods. In this study, a dynamic bidirectional coupled hydrologic–hydrodynamic model (DBCM) is developed with the implementation of char...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2021-02-01
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| Series: | Natural Hazards and Earth System Sciences |
| Online Access: | https://nhess.copernicus.org/articles/21/497/2021/nhess-21-497-2021.pdf |
| _version_ | 1818610596519608320 |
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| author | C. Jiang Q. Zhou W. Yu W. Yu C. Yang B. Lin |
| author_facet | C. Jiang Q. Zhou W. Yu W. Yu C. Yang B. Lin |
| author_sort | C. Jiang |
| collection | DOAJ |
| description | <p>Flood disasters frequently threaten people and property all over the world. Therefore, an effective numerical model is required to predict the impacts of floods. In this study, a dynamic bidirectional coupled hydrologic–hydrodynamic model (DBCM) is developed with the implementation of characteristic wave theory, in which the boundary between these two models can dynamically adapt according to local flow conditions. The proposed model accounts for both mass and momentum transfer on the coupling boundary and was validated via several benchmark tests. The results show that the DBCM can effectively reproduce the process of flood propagation and also account for surface flow interaction between non-inundation and inundation regions. The DBCM was implemented for the floods simulation that occurred at Helin Town located in Chongqing, China, which shows the capability of the model for flood risk early warning and future management.</p> |
| first_indexed | 2024-12-16T15:16:57Z |
| format | Article |
| id | doaj.art-4572cd58431a4186a5e05fd3a36050e0 |
| institution | Directory Open Access Journal |
| issn | 1561-8633 1684-9981 |
| language | English |
| last_indexed | 2024-12-16T15:16:57Z |
| publishDate | 2021-02-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Natural Hazards and Earth System Sciences |
| spelling | doaj.art-4572cd58431a4186a5e05fd3a36050e02022-12-21T22:26:46ZengCopernicus PublicationsNatural Hazards and Earth System Sciences1561-86331684-99812021-02-012149751510.5194/nhess-21-497-2021A dynamic bidirectional coupled surface flow model for flood inundation simulationC. Jiang0Q. Zhou1W. Yu2W. Yu3C. Yang4B. Lin5State Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing, 100084, ChinaState Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing, 100084, ChinaState Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing, 100084, ChinaChina Institute of Water Resources and Hydropower Research, Beijing, 100038, ChinaSchool of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou, 450046, ChinaState Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing, 100084, China<p>Flood disasters frequently threaten people and property all over the world. Therefore, an effective numerical model is required to predict the impacts of floods. In this study, a dynamic bidirectional coupled hydrologic–hydrodynamic model (DBCM) is developed with the implementation of characteristic wave theory, in which the boundary between these two models can dynamically adapt according to local flow conditions. The proposed model accounts for both mass and momentum transfer on the coupling boundary and was validated via several benchmark tests. The results show that the DBCM can effectively reproduce the process of flood propagation and also account for surface flow interaction between non-inundation and inundation regions. The DBCM was implemented for the floods simulation that occurred at Helin Town located in Chongqing, China, which shows the capability of the model for flood risk early warning and future management.</p>https://nhess.copernicus.org/articles/21/497/2021/nhess-21-497-2021.pdf |
| spellingShingle | C. Jiang Q. Zhou W. Yu W. Yu C. Yang B. Lin A dynamic bidirectional coupled surface flow model for flood inundation simulation Natural Hazards and Earth System Sciences |
| title | A dynamic bidirectional coupled surface flow model for flood inundation simulation |
| title_full | A dynamic bidirectional coupled surface flow model for flood inundation simulation |
| title_fullStr | A dynamic bidirectional coupled surface flow model for flood inundation simulation |
| title_full_unstemmed | A dynamic bidirectional coupled surface flow model for flood inundation simulation |
| title_short | A dynamic bidirectional coupled surface flow model for flood inundation simulation |
| title_sort | dynamic bidirectional coupled surface flow model for flood inundation simulation |
| url | https://nhess.copernicus.org/articles/21/497/2021/nhess-21-497-2021.pdf |
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