团泊洼-沙井子行洪道洪水演进数学模型的研究与应用  

Research and Application of Flood Routing Mathematical Model for Tuanbowa-Shajingzi Flood Flowing Channel

作　　者：李大鸣[1] 杨紫佩 赵明雨 王笑[1] 

机构地区：[1]天津大学水利工程仿真与安全国家重点实验室,天津300072

出　　处：《天津大学学报（自然科学与工程技术版）》2015年第8期708-716,共9页Journal of Tianjin University：Science and Technology

摘　　要：以二维非恒定流基本控制方程为理论基础,采用有限体积法,建立了洪水演进数学模型.根据团泊洼蓄滞洪区的实际地形、地貌,采用该模型模拟了'56'型洪水分洪流量过程,对水量、最大流量和淹没水位进行了验证,其结果与设计结果吻合较好.应用该模型对团泊洼安全区塔基建设工程前后进行了洪水演进模拟,并通过构建塔基局部加密模型,分析了塔基建设前后对局部行洪、附近水深、流速的影响,为蓄滞洪区的工程建设提供了研究依据.A flood routing mathematical model was established using finite volume method based on basic two-dimensional unsteady flow equations. With the real topography and geomorphology of Tuanbowa flood detention ba-sin,the ＂56＂ type flood water diversion discharge process was simulated using the model and the results of water volume,the maximum flow and flood water level were basically consistent with design records. This model was ap-plied to simulating the flood routing in Tuanbowa safety area before and after pylon base construction. Influences on local flood discharge,water depth and velocity near the tower base were analyzed by establishing pylon base refine-ment model,which may provide research basis for other engineering constructions of flood detention basin.

关 键 词：蓄滞洪区 团泊洼 洪水演进 数学模型 

分 类 号：TV122[水利工程—水文学及水资源]