摘要
三峡水库投运后库区洪水波特性和传播规律发生了变化,给洪水预报和水库实时调度带来了困难和挑战。为揭示洪水传播规律,基于MIKE11建立了耦合水力学和产汇流模型的三峡库区洪水演进模型,其中区间来水采用NAM模型配合衔接,以旁侧入流的方式汇入。对不同场次洪水模拟结果表明,模型的模拟精度可以满足预报业务精度要求和洪水传播规律分析需求。采用所建的洪水演进模型,模拟分析了不同来水情景、不同水库运行水位下洪水传播时间和坦化规律,研究结果对明晰三峡库区洪水传播规律,指导三峡水库科学调度具有重要意义。
Since the Three Gorges Reservoir was put into operation, the characteristics and propagation laws of flood waves in the reservoir area have been changed, which brings difficulties and challenges to flood forecasting and real-time operation of the reservoir. In order to reveal the propagation laws of flood waves, the flood routing model of the Three Gorges Reservoir was established based on MIKE11 coupled with hydraulics and rainfall-runoff models. For the inflow from the interval, the NAM model was used to calculate the inflow flowing into mainstream in the way of side inflow. The simulation results for different floods show that the accuracy of the model can meet the requirements of flood forecast and the analysis of flood propagation laws. The established flood routing model was used to simulate the flood propagation time and attenuation laws under different inflow scenarios and different operating water levels of the reservoir. The research results are of great significance for clarifying the flood propagation laws of the Three Gorges Reservoir and guiding the scientific operation of the Three Gorges Reservoir.
作者
肖扬帆
周曼
胡挺
时玉龙
曾明
XIAO Yang-fan;ZHOU Man;HU Ting;SHI Yu-long;ZENG Ming(China Three Gorges Corporation,Yichang 443133,China;Bureau of Hydrology,Changjiang Water Resources Commission,Wuhan 430010,China)
出处
《水电能源科学》
北大核心
2022年第10期74-77,194,共5页
Water Resources and Power
基金
国家重点研发计划(2021YFC3200303)
中国三峡集团科研项目(WWKY-2020-0451)。
