An Efficient Method for Approximately Simulating Drainage Capability for Urban Flood
Assessing the performance and capability of drainage pipes is of significance for computing urban flooding. However, drainage-pipe data is not available for most urban areas, therefore raising the problem for computing the drainage capability in an approximate way. To resolve this problem, a new typ...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2020-06-01
|
| Series: | Frontiers in Earth Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/article/10.3389/feart.2020.00159/full |
| _version_ | 1819098145995358208 |
|---|---|
| author | Donglai Li Donglai Li Jingming Hou Jingming Hou Junqiang Xia Yu Tong Dong Yang Dawei Zhang Xujun Gao |
| author_facet | Donglai Li Donglai Li Jingming Hou Jingming Hou Junqiang Xia Yu Tong Dong Yang Dawei Zhang Xujun Gao |
| author_sort | Donglai Li |
| collection | DOAJ |
| description | Assessing the performance and capability of drainage pipes is of significance for computing urban flooding. However, drainage-pipe data is not available for most urban areas, therefore raising the problem for computing the drainage capability in an approximate way. To resolve this problem, a new type of approach that improves on the existing approach, termed the inlet-drainage approach, is proposed by assuming the drainage effects as a mass subtracted in particular parts, e.g., the area with gullies or inlets. The proposed approach is incorporated into a 2D hydrodynamic model for surface flow to simulate the coupled rainfall-runoff-drainage-inundation processes. Through validation against the measured and modeled results in two test cases involving ideal and realistic urban catchments, it is demonstrated that the proposed new approach could provide fairly good modeled results for computing drainage effects. More importantly, the new approach is simple and easy to implement. |
| first_indexed | 2024-12-22T00:26:20Z |
| format | Article |
| id | doaj.art-4fd24eb2fc11449a9e70f37fb890b23d |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-12-22T00:26:20Z |
| publishDate | 2020-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Earth Science |
| spelling | doaj.art-4fd24eb2fc11449a9e70f37fb890b23d2022-12-21T18:45:03ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632020-06-01810.3389/feart.2020.00159524989An Efficient Method for Approximately Simulating Drainage Capability for Urban FloodDonglai Li0Donglai Li1Jingming Hou2Jingming Hou3Junqiang Xia4Yu Tong5Dong Yang6Dawei Zhang7Xujun Gao8State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, ChinaState Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, ChinaState Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, ChinaState Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, ChinaState Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, ChinaState Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, ChinaState Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, ChinaResearch Center on Flood & Drought Disaster Reduction of the Ministry of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing, ChinaNorthwest Engineering Corporation Limited of the Power Construction Corporation of China, Xi'an, ChinaAssessing the performance and capability of drainage pipes is of significance for computing urban flooding. However, drainage-pipe data is not available for most urban areas, therefore raising the problem for computing the drainage capability in an approximate way. To resolve this problem, a new type of approach that improves on the existing approach, termed the inlet-drainage approach, is proposed by assuming the drainage effects as a mass subtracted in particular parts, e.g., the area with gullies or inlets. The proposed approach is incorporated into a 2D hydrodynamic model for surface flow to simulate the coupled rainfall-runoff-drainage-inundation processes. Through validation against the measured and modeled results in two test cases involving ideal and realistic urban catchments, it is demonstrated that the proposed new approach could provide fairly good modeled results for computing drainage effects. More importantly, the new approach is simple and easy to implement.https://www.frontiersin.org/article/10.3389/feart.2020.00159/fullurban floodingnumerical simulationunavailable drainage pipeinlet drainagesurface flow |
| spellingShingle | Donglai Li Donglai Li Jingming Hou Jingming Hou Junqiang Xia Yu Tong Dong Yang Dawei Zhang Xujun Gao An Efficient Method for Approximately Simulating Drainage Capability for Urban Flood Frontiers in Earth Science urban flooding numerical simulation unavailable drainage pipe inlet drainage surface flow |
| title | An Efficient Method for Approximately Simulating Drainage Capability for Urban Flood |
| title_full | An Efficient Method for Approximately Simulating Drainage Capability for Urban Flood |
| title_fullStr | An Efficient Method for Approximately Simulating Drainage Capability for Urban Flood |
| title_full_unstemmed | An Efficient Method for Approximately Simulating Drainage Capability for Urban Flood |
| title_short | An Efficient Method for Approximately Simulating Drainage Capability for Urban Flood |
| title_sort | efficient method for approximately simulating drainage capability for urban flood |
| topic | urban flooding numerical simulation unavailable drainage pipe inlet drainage surface flow |
| url | https://www.frontiersin.org/article/10.3389/feart.2020.00159/full |
| work_keys_str_mv | AT donglaili anefficientmethodforapproximatelysimulatingdrainagecapabilityforurbanflood AT donglaili anefficientmethodforapproximatelysimulatingdrainagecapabilityforurbanflood AT jingminghou anefficientmethodforapproximatelysimulatingdrainagecapabilityforurbanflood AT jingminghou anefficientmethodforapproximatelysimulatingdrainagecapabilityforurbanflood AT junqiangxia anefficientmethodforapproximatelysimulatingdrainagecapabilityforurbanflood AT yutong anefficientmethodforapproximatelysimulatingdrainagecapabilityforurbanflood AT dongyang anefficientmethodforapproximatelysimulatingdrainagecapabilityforurbanflood AT daweizhang anefficientmethodforapproximatelysimulatingdrainagecapabilityforurbanflood AT xujungao anefficientmethodforapproximatelysimulatingdrainagecapabilityforurbanflood AT donglaili efficientmethodforapproximatelysimulatingdrainagecapabilityforurbanflood AT donglaili efficientmethodforapproximatelysimulatingdrainagecapabilityforurbanflood AT jingminghou efficientmethodforapproximatelysimulatingdrainagecapabilityforurbanflood AT jingminghou efficientmethodforapproximatelysimulatingdrainagecapabilityforurbanflood AT junqiangxia efficientmethodforapproximatelysimulatingdrainagecapabilityforurbanflood AT yutong efficientmethodforapproximatelysimulatingdrainagecapabilityforurbanflood AT dongyang efficientmethodforapproximatelysimulatingdrainagecapabilityforurbanflood AT daweizhang efficientmethodforapproximatelysimulatingdrainagecapabilityforurbanflood AT xujungao efficientmethodforapproximatelysimulatingdrainagecapabilityforurbanflood |