北江千吨级航道整治研究:Ⅲ三维数学模型与船闸口门区水流条件分析  

Study on the Beijiang River 1000 twaterway regulation:Ⅲ three-dimensional numerical model and the study of flow conditions on the entrance of ship lock

作　　者：叶明波 伍志元[2] 杨明远 蒋昌波[2,3] 陈杰[2,3] 

机构地区：[1]广东省航道局,广东广州510000 [2]长沙理工大学水利工程学院,湖南长沙410004 [3]水沙科学与水灾害防治湖南省重点实验室,湖南长沙410004

出　　处：《交通科学与工程》2014年第1期49-55,共7页Journal of Transport Science and Engineering

基　　金：国家自然科学基金重点项目(51239001);高等学校博士学科点专项科研基金新教师类资助课题(20124316120003);广东省交通运输厅科技项目计划重大项目(2012-01-002)

摘　　要：为研究白石窑枢纽引航道口门区水流条件,基于RANS方程,建立了口门区三维水流数学模型。模型水平采用三角形无结构化网格,垂向采用σ坐标分层,较好地拟合了工程区复杂的地形特征。利用物理模型实测水位和流速,对模型进行了水面线验证和流速验证。验证结果表明:该模型具有较高的精度,能够用于模拟口门区水流条件;并计算分析了白石窑枢纽下引航道口门区的流速分布情况、流场特征与涡量特征,讨论了通航水流条件。In order to study the flow conditions of entrance area of channel on Baishiyao hydro-junction, based on the RANS equation,the three-dimensional mathematic entrance area model is established, using triangular unstructured grid in horizontal direction, and sigma coordination system in vertical direction, the complicated terrain feature of engineering is fitted.For verification of water surface line and flow velocity verification of the model by using the water level and flow velocity of physical model experiment, verification results show that the model has high precision, can simulate the flow condition of entrance area,and calculate the Baishiyao hydro-junction at the entrance area of the approach channel of the velocity distribution, flow characteristics and vorticity. The flow conditions of navigation have been discussed.

关 键 词：三维水流数学模型 口门区 水流条件 白石窑枢纽 

分 类 号：TV61[水利工程—水利水电工程]