水科学进展2011，Vol.22Issue(6)：859-863,5.DOI:32.1309.P.20110709.1622.018
非粘性沙坝溃决数学模型及求解
Mathematical modeling of non-cohesive earth dam breaches
摘要
Abstract
A mathematical model of overtopping dam-break is developed using the coupled 1D shallow water equations on steep surface and the Exner equation. The model takes advantages of the Roe approximate Riemann solvers and the predictor-corrector scheme for the source term treatment. The issues of computational stability and accuracy on sediment erosion transport and bed evolution can thus be ensured. The result shows that the model is able to better simulate the process of non-cohesive earth dam breaches and provides a new approach for numerical modeling of overtop dam-break.关键词
浅水方程/Exner方程/漫顶溃坝/黎曼近似解法。Key words
shallow water equations/ Exner equation/ overtopping dam break/ Riemann approximate solution分类
建筑与水利引用本文复制引用
王立辉,潘存鸿,吴修广,潘冬子,于普兵..非粘性沙坝溃决数学模型及求解[J].水科学进展,2011,22(6):859-863,5.基金项目
国家自然科学基金资助项目(51079130) （51079130）
浙江省重大科技计划资助项目(2007C13012) （2007C13012）
