分蓄洪区洪水演进数值模型  

NUMERICAL MODEL OF FLOOD PROPAGATION IN DETENTION BASIN

作　　者：程晓陶[1] 杨磊[1] 陈喜军[1] 

机构地区：[1]中国水利水电科学研究院灾害与环境研究中心,北京100044

出　　处：《自然灾害学报》1996年第1期34-40,共7页Journal of Natural Disasters

基　　金：本文为"八五"国家重点科技攻关课题之一

摘　　要：本文介绍的二维非恒定流数值模型,采用无结构不规则网格,充分考虑了分蓄洪区内影响洪水演进的各种主要因素。通过1954年荆江分洪区实测分洪过程的模拟验证,表明模型不仅计算精度显著提高,计算速度也大为加快,达到了为分洪调度指挥服务的要求,具有较强的实用性。This paper presents a numerical model for 2-D unsteady flow with unstructured and irregu- lar grids.All main factors that influnce flood routing in large detention basin have been taken in- to account.Comparing the numerical simulation results with the observed data in jingjiang re- tarding basin in 1954.it is proved that the model not only has been improved with its accuracy. but also has higher speed,which can satisfy the need for flood forecasting.

关 键 词：洪水 减灾措施 蓄洪区 数值模拟 分洪区 

分 类 号：P426.616[天文地球—大气科学及气象学] TV122[水利工程—水文学及水资源]