小清河滞洪区洪水演进数学模型的研究  

Flood Routing Numerical Model of Xiaoqing River Detention Area

作　　者：李大鸣[1] 范玉[1,2] 杨紫佩 李杨杨[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 [2]华北水利水电大学水利学院,郑州450011

出　　处：《天津大学学报（自然科学与工程技术版）》2016年第4期400-407,共8页Journal of Tianjin University：Science and Technology

基　　金：国家自然科学基金创新研究群体科学基金资助项目(51021004);河北省水利科研计划资助项目(HS2007-43)

摘　　要：随着我国经济的发展,蓄滞洪区的开发和建设越来越受到人们的关注,对滞洪区进行洪水演进数值模拟研究非常必要.本文采用有限体积法建立了二维洪水演进数学模型,并对洪水演进的水量平衡计算模式进行改进,提出单元水量出流修正法,消除了有限体积法单元体内出现负水深,产生虚假流动的现象.将该研究成果应用于小清河滞洪区洪水演进的数值模拟,采用实测资料,对小清河滞洪区50年一遇洪水演进进行验证和模拟,从而得到泛区内洪水形势及淹没情况,为滞洪区分洪调度提供理论指导.With the civil economic development, the use of flood detention area has drawn more and more attention from people, so it is very necessary to carry out the flood routing numerical simulation study on the flood detention area. A 2D flood routing numerical model was established with finite volume method （FVM）, and a correction method for a unit of water flow was proposed to improve the water balance computing model, which eliminates the negative depth and false flow phenomenon in finite volume method. The improved approach was used to numerically simulate Xiaoqing River detention area. The flood routing of 50-year return period was tested and simulated with measured data, and water level and submerged scope were obtained, which provides theoretical guidance for flood diversion.

关 键 词：小清河滞洪区 洪水演进 水量平衡 有限体积法 

分 类 号：TV122[水利工程—水文学及水资源]