Study on the bidirectional coupling 1-D and 2-D model of urban flood based on different flow exchange modes∗

被引：0
|
作者：
Wang X. [1 ]
Xia J. [1 ]
Li Q. [1 ]
Hou J. [2 ]
机构：
[1] State Key Laboratory of Water Resources Engineering and Management, Wuhan University, Wuhan
[2] State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi′an University of Technology, Xi′an
来源：
Shuikexue Jinzhan/Advances in Water Science | 2024年 / 35卷 / 02期
基金：
中国国家自然科学基金;
关键词：
2- D surface model; model coupling; surface runoff; SWMM; underground pipe flow exchange; urban flooding;
D O I：
10.14042/j.cnki.32.1309.2024.02.006
中图分类号：
学科分类号：
摘要：
In order to accurately simulate the urban flood process, the bidirectional coupling hydrodynamic model of urban surface and underground sewer flow was constructed based on 1- D pipe network of SWMM and 2- D urban surface model, considering three exchange modes of surface runoff and underground pipe flow. The coupled model was firstly verified by flume experiment and theoretical case studies. Then the coupled model was applied to an urban street block in Glasgow, UK, to analyze the effects of drainage network and different exchange modes of surface and underground flow on urban flooding process. The results show that: the coupled model has good precision and reliability in simulations of flume experiment and theoretical case, which can accurately simulate the urban flooding process with drainage pipe network being included. The three exchange modes of surface and underground flow were considered in urban flooding simulation of Glasgow, including the manhole- based approach, the inlet approach and the inlet- manhole approach. Compared with the case without drainage system, the simulated maximum inundated area obtained from these three flow exchange modes respectively were reduced by 9. 3%, 23. 2% and 24. 5%, in which the reduction effect of high inundation degree was more significant, and the inundation area were reduced by 43. 6%, 79. 9% and 80. 9% respectively. The reduction effect of water depth and inundated area by using the manhole- based approach was much smaller than that of the inlet approach and the inlet- manhole approach, and the difference between the inlet approach and the inlet- manhole approach was small. Moreover, the inlet approach and the inlet- manhole approach are relatively accordance with the actual situation, and the inlet- manhole approach is simpler and more computationally efficient. Therefore, using the inlet- manhole approach is more suitable than others in the exchange process of surface runoff and underground pipe flow. © 2024 International Research and Training Center on Erosion and Sedimentation and China Water and Power Press. All rights reserved.
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页码：244 / 255
页数：11
相关论文
共 30 条
  • [11] HUANG G R, CHEN W J, YU H J., Construction and evaluation of an integrated hydrological and hydrodynamics urban flood model, Advances in Water Science, 32, 3, pp. 334-344, (2021)
  • [12] CHEN W J, HUANG G R, ZHANG H, Et al., Urban inundation response to rainstorm patterns with a coupled hydrodynamic model: a case study in Haidian Island, China, Journal of Hydrology, 564, pp. 1022-1035, (2018)
  • [13] WU X S, WANG Z L, GUO S L, Et al., Scenario- based projections of future urban inundation within a coupled hydrodynamic model framework: a case study in Dongguan City, China, Journal of Hydrology, 547, pp. 428-442, (2017)
  • [14] LI D L, HOU J M, ZHANG Y W, Et al., Influence of time step synchronization on urban rainfall-runoff simulation in a hybrid CPU/ GPU 1D-2D coupled model, Water Resources Management, 36, 10, pp. 3417-3433, (2022)
  • [15] HOU J M, DONG M J, LI D L, Et al., Drainage effect of urban drainage- pipe network under extreme rainstorms: taking Fengxi new city in Xi′an City, China as an example, Journal of Earth Sciences and Environment, 45, 2, pp. 427-436, (2023)
  • [16] JANG J H, CHANG T H, CHEN W B., Effect of inlet modelling on surface drainage in coupled urban flood simulation, Journal of Hydrology, 562, pp. 168-180, (2018)
  • [17] BORSCHE R, KLAR A., Flooding in urban drainage systems: coupling hyperbolic conservation laws for sewer systems and surface flow, International Journal for Numerical Methods in Fluids, 76, 11, pp. 789-810, (2014)
  • [18] DONG B L, XIA J Q, ZHOU M R, Et al., Integrated modeling of 2D urban surface and 1D sewer hydrodynamic processes and flood risk assessment of people and vehicles, Science of the Total Environment, 827, (2022)
  • [19] BAZIN P H, NAKAGAWA H, KAWAIKE K, Et al., Modeling flow exchanges between a street and an underground drainage pipe during urban floods, Journal of Hydraulic Engineering, 140, 10, (2014)
  • [20] LIU L, SUN J, YUAN B, Et al., Surface flooding in urban areas under heavy downpours: case study of Tsinghua University campus, Journal of Hydroelectric Engineering, 38, 8, pp. 98-109, (2019)
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