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Urban Pluvial Flood Modeling by Coupling Raster-Based Two-Dimensional Hydrodynamic Model and SWMM
| Content Provider | MDPI |
|---|---|
| Author | Yang, Quntao Ma, Zheng Zhang, Shuliang |
| Copyright Year | 2022 |
| Description | Urban flood modeling usually involves simulating drainage network runoff and overland flow. We describe a method for urban pluvial flood modeling by coupling the stormwater management model (SWMM) with a raster-based 2D hydrodynamic model, which is based on a simplified form of the shallow water equations. Then, the method is applied to a highly urbanized area in Nanjing City, China. The elevation of the raster-based 2D hydrodynamic model shows that the raster-based model has comparable capabilities to LISFLOOD-FP for surface flood modeling. The calibration and validation results of the coupled model show that the method is reliable. Moreover, simulation results under the six rainfall return periods, which include 1-, 5-, 10-, 20-, 50-, and 100-year return periods show that node overflow, water depth, and flooding area increase proportionately as the intensity of rainfall increases. Therefore, the coupling model provides a simplified and intuitive method for urban pluvial flood modeling, which can be used to detect flood-sensitive areas and elevate the capacity of urban drainage networks for urban pluvial flooding. |
| Starting Page | 1760 |
| e-ISSN | 20734441 |
| DOI | 10.3390/w14111760 |
| Journal | Water |
| Issue Number | 11 |
| Volume Number | 14 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-05-30 |
| Access Restriction | Open |
| Subject Keyword | Water Water Science and Technology Urban Pluvial Flood 2d Hydrodynamic Model Coupled Model Storm Water Management Model |
| Content Type | Text |
| Resource Type | Article |
