三峡蓄水前后鹅公岩河段水动力条件数值模拟及变化规律分析研究  

Analysis on numerical simulations of hydrodynamic conditions in Egongyan reach after operation of Three Gorges reservoir

作　　者：罗全胜[1,2] 耿亚杰[1,2] 

机构地区：[1]小流域水利河南省高校工程技术研究中心,河南开封475003 [2]黄河水利职业技术学院,河南开封475003

出　　处：《水力发电学报》2015年第4期59-62,共4页Journal of Hydroelectric Engineering

基　　金：国家自然科学基金资助项目(50579041)

摘　　要：本文基于三峡水库175m高水位蓄水运行的背景,根据所收集的实测地形、水文、泥沙资料,针对三峡蓄水后坝前回水对变动回水区产生的壅水影响,选择变动回水区中间段鹅公岩河段作为研究代表,借助SMS地表水模拟软件建立研究河段的平面水流二维数学模型,对蓄水前后鹅公岩河段的水动力条件及推移质输移变化进行了对比研究。本文研究成果对该河段河演规律分析、航槽区域划分以及航道工程整治提供了技术支持,同时可为同类河段的研究提供参考。This article is based on the Three Gorges reservoir＇s operation at water level 175 m and the collected data of topography, hydrology and sediment measurements. We examine the backwater effects in the fluctuating backwater zone of the reservoir after its impoundment. A 2D depth-integrated flow model was adopted in the framework of a SMS surface water simulation code for simulation of the representative Egongyan reach located in the middle of the fluctuating backwater zone, focusing on its hydrodynamic and bedload transport conditions and their responses to the impoundment. The results provide technical support to analysis of riverbed evolution, waterway management, and waterway regulation.

关 键 词：河流泥沙工程学 鹅公岩河段 变动回水区 水动力条件 平面水流二维数学模型 

分 类 号：TV147[水利工程—水力学及河流动力学]