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罗海婉, 陈文杰, 李志威, 潘 健, 高 强, 黄国如.基于耦合水动力模型的广州市东濠涌流域洪涝模拟水资源与水工程学报[J].,2019,30(3):46-52
基于耦合水动力模型的广州市东濠涌流域洪涝模拟
Flood simulation of Donghaochong Basin in Guangzhou City based on coupled hydrodynamic model
  
DOI:10.11705/j.issn.1672-643X.2019.03.07
中文关键词:  城市洪涝  耦合水动力模型  数值模拟  东濠涌流域
英文关键词:urban flooding  coupled hydrodynamic model  numerical modeling  Donghaochong Basin
基金项目:国家重点研发计划项目(2017YFC1502704); 广东省水利科技创新项目(2016-32); 国家自然科学基金项目(51739011、51879108); 广州市科技计划项目(201803030021)
作者单位
罗海婉1, 陈文杰1, 李志威2, 潘 健1, 高 强2, 黄国如1,3,4 (1.华南理工大学 土木与交通学院广东 广州 510640 2. 广州市水务科学研究所 广东 广州 5102203.华南理工大学 亚热带建筑科学国家重点实验室广东 广州 5106404. 广东省水利工程安全与绿色水利工程技术研究中心广东 广州 510640) 
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中文摘要:
      东濠涌流域位于广州市中心城区越秀区内,调研分析流域内积水点淹没成因与利用数值模拟方法研究该城市流域洪涝过程并获得一定可靠性和精度的洪涝水情信息,可为相关部门抢险救灾决策提供理论参考和科学依据。根据城市洪涝过程的水文水力学方法原理,以SWMM作为一维模型基础,采用动态链接库文件(DLL)方法耦合二维水动力模型,通过侧向、正向和垂向的连接构建耦合水动力模型,以东濠涌流域为研究区域构建基于耦合水动力模型的东濠涌流域洪涝模型并选用两场实测降雨对模型进行模拟分析。结果表明:模型在一维排水系统的排水能力与二维地表积水的模拟均具有较好的精度和可靠性。该耦合水动力模型在东濠涌流域的应用进一步证明了耦合模型连接算法的合理性和可行性,对城市洪涝模拟分析有较好的应用价值。
英文摘要:
      Donghaochong Basin is located in Yuexiu District, the centre of Guangzhou City. Through investigation and analysis of the causes of inundation at water points in the river basin and the use of numerical modeling, this paper studied urban basin flood process and obtained flood information with certain reliability and accuracy, providing theoretical reference and scientific basis for decision making concerning disaster relief by related departments. According to the principles of hydrologic hydraulics about the process of urban flood, the SWMM was taken as one-dimensional (1D) model, the two-dimensional (2D) hydrodynamic model was coupled through DLL, and the coupled hydrodynamic model was constructed through the connection of horizontal and vertical direction. The flood model of Donghaochong Basin based on the coupled hydrodynamic model was constructed. Two measured rainfall events were simulated and analyzed, and it turned out that the flood model had good accuracy and reliability in the simulation of 1D drainage system and 2D surface waterlogging. The application of the coupled hydrodynamic model in Donghaochong Basin further proved the rationality and feasibility of the coupling model connection algorithm, showing great application value in urban flood simulation and analysis.
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