水利水电技术2012，Vol.43Issue(4)：107-111,5.
应用二维数值方法模拟蓄滞洪区洪水运动
Flood simulation flood storage and detention basin using 2-D numerical method
摘要
Abstract
Aiming at the characteristics of flood propagation in flood storage and detention basins, a high precision numerical model is developed by unstructurally dispersing the conservation form of 2-D shallow water equation. With this model, the second-order temporal and spatial discrete accuracy is obtained with numerical reconstruction through the calculating the interface numerical flux with the Roe' s approximate Riemann solver. Based on the calculating cases of both the square dam-break and supercritical flow, it is demonstrated that the model can capture the water surface discontinuity and deal with the problem of dry shoal satisfactorily with a higher numerical accuracy and reliable stability. The numerical model is applied to simulate the levee breach flood in Pangtoupao Flood Storage and Detention Basin in Heilongjiang Province, and then the process of the flood propagation therein is well simulated; from which the result can lay a basis for the decision-making of the flood control concerned.关键词
浅水方程/数学模型/Roe格式/胖头泡蓄滞洪区Key words
shallow water equation/ numerical model/ Roe scheme/ Pangtoupao Flood Storage and Detention Basin分类
水利科学引用本文复制引用
权锦,张大伟,蒋云钟..应用二维数值方法模拟蓄滞洪区洪水运动[J].水利水电技术,2012,43(4):107-111,5.基金项目
水利部公益性行业科研专项经费项目(201001024、201101026和200901031). （201001024、201101026和200901031）
