水科学进展2011，Vol.22Issue(4)：516-522,7.DOI:32.1309.P.20110709.1619.001
一维-二维耦合的河湖系统整体水动力模型
1D-2D coupled hydrodynamic simulation model of river-lake system
摘要
Abstract
A coupled 1D-2D numerical model for simultaneous hydrodynamic simulation of river-lake systems is presented. The Water Stage Prediction-Correction (WSPC) method, which is originally proposed to treat the inter-reach coupling at junctions in river-network hydrodynamic calculation, is adopted herein to treat the inter-model connection conditions between ID and 2D models at the coupled boundaries. Under the WSPC framework, the execution processes of ID and 2D models during each time step are totally independent, implying that we can make use of the existing model at a minimum modification. Compared to traditional decoupling techniques, the WSPC method gives the advantage of fully fulfilled inter-model connection conditions, whose accuracy also may be controlled by tuning the numeric tolerance. The proposed model is verified by hypothetical and practical cases, and the results show its reliability and good prospects in application.关键词
河湖系统/水动力模拟/一维-二维耦合/水位预测校正法Key words
river-lake system/ hydrodynamic model/ 1D-2D coupled/ water stage prediction-correction分类
建筑与水利引用本文复制引用
王智勇,陈永灿,朱德军,刘昭伟..一维-二维耦合的河湖系统整体水动力模型[J].水科学进展,2011,22(4):516-522,7.基金项目
水利部公益性行业专项经费资助项目(200801008) （200801008）
国家自然科学基金资助项目(50823005) （50823005）
