基于不同河道汇流方法的新安江模型研究  

Research on the Xin'anjiang Model Based on Different Channel Flood Routing Methods

作　　者：王也 龚定 李致家[3] 肖杨 谭君 李巧玲[3] WANG Ye;GONG Ding;LI Zhijia;XIAO Yang;TAN Jun;LI Qiaoling(Wuling Power Limited Corporation,Changsha 410004,Hunan,China;Anhui Survey&Design Institute of Water Resources&Hydropower Co.,Ltd.,Hefei 230088,Anhui,China;College of Hydrology and Water Resources,Hohai University,Nanjing 210024,Jiangsu,China)

机构地区：[1]五凌电力有限公司,湖南长沙410004 [2]安徽省水利水电勘测设计研究总院有限公司,安徽合肥230088 [3]河海大学水文水资源学院,江苏南京210024

出　　处：《水力发电》2024年第1期8-14,共7页Water Power

基　　金：国家自然科学基金资助项目(52079035)。

摘　　要：为了提高五强溪流域水文模型的洪水预报精度,在新安江水文模型河道汇流模块中加入局地惯性波法,局地惯性波法不考虑迁移惯性项,适用于库区洪水演算。研究考虑了五强溪流域的水库型河道特征,在河道汇流方面建立了分段马斯京根法和局地惯性波组合的汇流方案。选取2020年~2022年五强溪流域洪水过程,与传统新安江模型对比,进行结果讨论分析。结果表明,分段马斯京根法仍是最简便、准确和稳定的汇流演算方法,但在水库型河道中构建分段马斯京根法和局地惯性波法的汇流方案,具有一定的创新性,取得了较高的模拟精度,为实时洪水预报提供了新的研究方案和路线。In order to improve the accuracy of flood forecasting of Wuqiangxi Basin hydrological model,the local inertial wave method is added to the Xin'anjiang hydrological model.The local inertial wave method is suitable for flood calculation in reservoir area without considering the inertia term of migration.In this study,the characteristics of reservoir channel in Wuqiangxi basin are considered,and the channel flood routing scheme based on segmented Muskingum method and the local inertial wave is established.The flood processes of Wuqiangxi Basin from 2020 to 2022 are selected for simulation,and the results are compared with the traditional Xin'anjiang model.The results show that the segmented Muskingum method is still the simplest,accurate and stable channel flood routing calculation method.However,the confluence scheme based on the combination of the segmented Muskingum method and the local inertial wave method is innovative for the reservoir-type channel and has higher simulation accuracy,which provides a new research scheme and route for the real-time flood forecast.

关 键 词：洪水预报 河道汇流 局地惯性波法 分段马斯京根法 新安江模型 五强溪流域 

分 类 号：P338[天文地球—水文科学]