浙江乌牛新闸闸下三维水流冲刷数值模拟研究  

Numerical simulation research on downstream three-dimensional flow and scouring of new Wuniu sluice in Zhejiang Province

作　　者：王斌[1] 王月华[1] 包中进[1] 

机构地区：[1]浙江省水利河口研究院,浙江杭州310020

出　　处：《人民长江》2013年第13期55-57,70,共4页Yangtze River

基　　金：浙江省水利厅科技项目(2010149)

摘　　要：低水头水闸往往具有较大的单宽流量,从而导致过闸水流能量较为集中。经消能工消能后,闸下水流紊动仍较剧烈,具有非常复杂的三维特性,致使常规数学模型较难直观反映实际的闸下水动力及泥沙冲刷状况。采用Flow-3D三维数值模拟软件对浙江乌牛新闸的水动力及闸下冲刷情况进行了模拟,并结合水工物理模型试验成果,对水流流态、流速分布、水面线以及冲刷成果等进行了对比分析,结果吻合较好。证明该软件对低水头闸下三维水流数值模拟和冲刷研究具有较好的适用性,可为今后的研究工作提供技术平台。The sluices with low water head often have larger unit width discharge,which leads to concentrated energy of discharge flow.The flow at the downstream of the sluices is always turbulent and has very complex three-dimensional features,so it is difficult to visually reflect the actual hydrodynamic situation and sediment scouring by conventional mathematical model.The hydrodynamic situation of new Wuniu sluice in Zhejiang Province and the scouring at the downstream were simulated by using Flow-3D software.The flow state,flow velocity distribution,water surface profile as well as scouring patterns have been analyzed according to the results of hydraulic model test.The computation results are consistent with the experimental data,therefore,the software is feasible in simulating the three-dimensional flow and sediment.

关 键 词：三维数值模拟 水流流态 闸下冲刷 乌牛新闸 

分 类 号：TV131.4[水利工程—水力学及河流动力学]