摘要
三峡水库蓄水后,原天然河道变成水库回水区,库区内洪水传播特性发生显著变化,且不同库段内洪水传播特性随库水位及上游来水条件而改变。针对三峡蓄水后库区水力条件变化,基于MIKE11模型模拟计算不同库水位及来水条件下洪水波在库区传播时间,以及影响洪水波传播的水流速度,运动波、动力波传播速度等因子,通过对计算结果验证与分析,初步揭示了三峡库区内不同库段在各种来水条件下的洪水波特性以及变化规律。
After the impounding of the Three Gorges Reservoir,the natural river channel became reservoir area,and the characteristics of flood wave routing changed significantly and controlled by the discharge of inflow and the water level before the dam.Based on the MIKEll model setup in the reservoir area,the flood routing time were calculated for different cases,other elements combined to the routing time also computed including the flow velocity,the kinematic wave celerity and dynamic wave celerity in each scenario.By validation and analysis the results,some general conclusion can be reached for the characteristics of the flood wave routing along the reservoir area.
出处
《水文》
CSCD
北大核心
2014年第1期30-34,共5页
Journal of China Hydrology
关键词
三峡库区
MIKE11模型
流速
运动波
动力波
洪水波传播
Three Gorges Reservoir Area
MIKE11 model
velocity
kinematic wave
dynamic wave
flood wave routing
