引水明渠二维水流数学模型的建立及应用  

Development and application of 2-D water flow model in water diversion channel

作　　者：陆虹[1] 胡进华 韩松林[1] 

机构地区：[1]长江科学院水力学研究所,湖北武汉430010 [2]长江勘测规划设计研究有限责任公司,湖北武汉430010

出　　处：《人民长江》2016年第22期98-101,共4页Yangtze River

摘　　要：准确计算引水明渠内的水力学特征对于设计渠道断面型式及控制渠道泥沙淤积等具有重要意义。通过建立平面二维水流数学模型,对某引水渠道及其上游干流、下游库区区域的水流进行了数值模拟研究,分析了计算区域内的流态、流速分布和水位变化等水力参数。在此基础上对引水明渠渠底高程进行优化,对比了不同高程下渠道的水位和水流特征,成果可为明渠的优化设计及其防淤方案的制定提供科学依据。Accurate computation of hydraulic characteristics in diversion channel is important to the cross-section type design and sediment deposition prevention. By developing a horizontal 2-D water flow model,the flow regime,distribution of flow velocity and water level change in a diversion channel and its upper stem and downstream reservoir area are simulated. Based on the simulation result,the channel bottom elevation is optimized and the characteristics of water level and flow velocity under different channel bottom elevation are compared,which can provide scientific basis for the optimal design of the channel and the scheme making of preventing sediment deposition.

关 键 词：水动力模型 数值模拟 设计优化 引水明渠 

分 类 号：TV67[水利工程—水利水电工程]