坝体与库水的流固耦合分析

基于流固耦合分析方法，分别应用势流模式和位移模式2种流体单元模拟库水，并与传统的附加质量方法模拟库水的方法做了比较，结果显示该方法可行；相比附加质量方法，流固耦合方法与理论解更为接近，其中位移模式流体单元对单元形态要求较高。对库水截取区域的敏感性分析表明，流体区域选取3～5倍坝高可以得到较为满意的结果。以重力坝的不同坝顶宽度为例，讨论了需要考虑库水可压缩性的条件，这些成果为后续工作奠定了基础。

Fluid-Solid Coupling Analysis of Dam-Reservoir Interaction

Dam-reservoir interaction was analyzed in this paper using fluid-solid coupling method.The reservoir water was modeled respectively by two types of finite element,namely pressure-based element and displacement-based element.The fluid-solid coupling method was compared with traditional Westergaard additional mass method and the comparison showed that the former was closer to the theoretical solution than the latter.The displacement-based element demanded more regular element shape than pressure-based element...