水利学报Issue(6)：699-706,713,9.DOI:10.13243/j.cnki.slxb.20140265
一种模拟面板砂砾石坝漫顶溃决的动床耦合分析模型
Mathematical model of overtopping-induced break of concrete-faced sand-gravel dams
摘要
Abstract
Based on analysis of features of concrete-faced sand-gravel dam break, this study has estab⁃lished a coupled model of erodible bed. With the solid-liquid two-phase turbulent flow, this model tracks the free face with VOF,simulating very accurately the flow movement. As for the sediment incipience mod⁃ule, shear stress of swirling flow, sediment surface normal and angle of repose are taken into consider⁃ation. For computation, the relatively matured structure grid method and control volume method are em⁃ployed. The flume experiment validates the model,proving that the model can simulate meticulously and ac⁃curately the entire breaking process of concrete-faced sandy gravel dams, clearly portray in-ward scouring of scarped swirling flow and reflect the complicated relationship among concrete face,flow and bed deforma⁃tion. Thus it provides an effective tool for further study on the mechanism of break of concrete-faced sand-gravel dams.关键词
面板砂砾石坝/漫顶溃决/动床/耦合/固液两相湍流模型/泥沙启动Key words
concrete-faced sandy gravel dam/overtopping-induced dam break/erodible bed/coupled mod-el/solid-liquid two-phase turbulent flow model/sediment incipience分类
建筑与水利引用本文复制引用
王廷,沈振中..一种模拟面板砂砾石坝漫顶溃决的动床耦合分析模型[J].水利学报,2015,(6):699-706,713,9.基金项目
水利工程病变机理与健康诊断 （）
