水利信息化Issue(3)：86-89,95,5.DOI:10.19364/j.1674-9405.2026.03.013
基于水动力模型的高精度动态洪水实时推演系统
Development of high-precision dynamic real-time flood simulation system based on hydrodynamic models
妮莎 1朱昊旭 1王丽娇 1周云峰 1李竑坤1
作者信息
- 1. 内蒙古自治区水文水资源中心,内蒙古呼和浩特 010010
- 折叠
摘要
Abstract
To enhance regional flood simulation and risk assessment capabilities,a high-precision hydrodynamic model was constructed.The study focused on the East Liao River and West Liao River within Horqin Left Rear Banner,Inner Mongolia.Based on multi-scale high-resolution topographic data,the main channel and floodplain were accurately identified,and a two-dimensional hydrodynamic model was established to simulate flood evolution within the river channel.In addition,to account for typical scenarios such as levee overtopping and levee breach,a coupled one-dimensional river and two-dimensional surface flow model was developed to simulate flood overflow and inundation processes.The model was calibrated and validated using the July 21,2024("7.21")flood event.The results showed that the simulated water levels agree well with observed data,demonstrating that the model can accurately reproduce flood propagation and inundation characteristics.On this basis,a high-precision dynamic real-time flood simulation system was further established for the study area to facilitate the transformation of modeling outcomes into practical flood control applications.Flood routing simulations were then conducted for the East Liao River and West Liao River under discharge scenarios of 300 m3/s,800 m3/s,and 1 500 m3/s,and inundation conditions of river floodplains and river levee protection zones were analyzed.The findings indicate that the proposed approach can effectively support regional flood risk identification and flood prevention decision-making and has strong engineering applicability and broader implementation potential.关键词
水动力模型/洪水风险/动态洪水实时推演系统/辽河流域Key words
hydrodynamic model/flood risk/dynamic real-time flood simulation system/Liao River Basin分类
建筑与水利引用本文复制引用
妮莎,朱昊旭,王丽娇,周云峰,李竑坤..基于水动力模型的高精度动态洪水实时推演系统[J].水利信息化,2026,(3):86-89,95,5.
