F28: a novel coupling strategy for 1D/2D hydraulic models for flood risk assessment of the Mekong Delta
Coupling models of different dimensions is one of the most important yet under-represented challenges. This paper introduces a new modeling strategy to streamline a more flexible and effective integrated one-dimensional (1D)/two-dimensional (2D) model for floodplains along lowland rivers. The 1D mod...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/174286 |
| _version_ | 1811680504224677888 |
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| author | Le, Giang Song Tran, Long Thanh Ho, Loc Huu Park, Edward |
| author2 | Asian School of the Environment |
| author_facet | Asian School of the Environment Le, Giang Song Tran, Long Thanh Ho, Loc Huu Park, Edward |
| author_sort | Le, Giang Song |
| collection | NTU |
| description | Coupling models of different dimensions is one of the most important yet under-represented challenges. This paper introduces a new modeling strategy to streamline a more flexible and effective integrated one-dimensional (1D)/two-dimensional (2D) model for floodplains along lowland rivers. The 1D model, utilizing the finite volume method, solves the Saint–Venant equations, while the 2D mesh employs unstructured quadrilateral elements. The two strategies couple the 1D/2D models: direct 1D/2D connection by the law of mass conservation at supernode, and lateral 1D/2D model connection by spillways at riverbank. The coupling strategy in F28 guarantees the water balance and the conservation of momentum at the integrated 1D/2D nodes. The model was applied to the Mekong Delta to address the capacity of hydrodynamic simulations integrating various water infrastructures. Results showed that the developed model has a strong potential to be applied to other lowland rivers worldwide with complex infrastructures. |
| first_indexed | 2024-10-01T03:26:06Z |
| format | Journal Article |
| id | ntu-10356/174286 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:26:06Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1742862024-03-25T15:30:43Z F28: a novel coupling strategy for 1D/2D hydraulic models for flood risk assessment of the Mekong Delta Le, Giang Song Tran, Long Thanh Ho, Loc Huu Park, Edward Asian School of the Environment Earth Observatory of Singapore Earth and Environmental Sciences Floodplain Hydraulic models Coupling models of different dimensions is one of the most important yet under-represented challenges. This paper introduces a new modeling strategy to streamline a more flexible and effective integrated one-dimensional (1D)/two-dimensional (2D) model for floodplains along lowland rivers. The 1D model, utilizing the finite volume method, solves the Saint–Venant equations, while the 2D mesh employs unstructured quadrilateral elements. The two strategies couple the 1D/2D models: direct 1D/2D connection by the law of mass conservation at supernode, and lateral 1D/2D model connection by spillways at riverbank. The coupling strategy in F28 guarantees the water balance and the conservation of momentum at the integrated 1D/2D nodes. The model was applied to the Mekong Delta to address the capacity of hydrodynamic simulations integrating various water infrastructures. Results showed that the developed model has a strong potential to be applied to other lowland rivers worldwide with complex infrastructures. Published version This research is funded by Ministry of Science and Technology under grant number KC-4.0-09/19-25. 2024-03-25T07:12:25Z 2024-03-25T07:12:25Z 2023 Journal Article Le, G. S., Tran, L. T., Ho, L. H. & Park, E. (2023). F28: a novel coupling strategy for 1D/2D hydraulic models for flood risk assessment of the Mekong Delta. Journal of Hydroinformatics, 25(6), 2369-2388. https://dx.doi.org/10.2166/hydro.2023.108 1464-7141 https://hdl.handle.net/10356/174286 10.2166/hydro.2023.108 2-s2.0-85179039141 6 25 2369 2388 en Journal of Hydroinformatics © 2023 The Authors. This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (CC BY-NC-ND 4.0), which permits copying and redistribution for non-commercial purposes with no derivatives, provided the original work is properly cited (http://creativecommons.org/licenses/by-nc-nd/4.0/). application/pdf |
| spellingShingle | Earth and Environmental Sciences Floodplain Hydraulic models Le, Giang Song Tran, Long Thanh Ho, Loc Huu Park, Edward F28: a novel coupling strategy for 1D/2D hydraulic models for flood risk assessment of the Mekong Delta |
| title | F28: a novel coupling strategy for 1D/2D hydraulic models for flood risk assessment of the Mekong Delta |
| title_full | F28: a novel coupling strategy for 1D/2D hydraulic models for flood risk assessment of the Mekong Delta |
| title_fullStr | F28: a novel coupling strategy for 1D/2D hydraulic models for flood risk assessment of the Mekong Delta |
| title_full_unstemmed | F28: a novel coupling strategy for 1D/2D hydraulic models for flood risk assessment of the Mekong Delta |
| title_short | F28: a novel coupling strategy for 1D/2D hydraulic models for flood risk assessment of the Mekong Delta |
| title_sort | f28 a novel coupling strategy for 1d 2d hydraulic models for flood risk assessment of the mekong delta |
| topic | Earth and Environmental Sciences Floodplain Hydraulic models |
| url | https://hdl.handle.net/10356/174286 |
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