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Dynamic analysis of a water-soil-pore water coupling system

机译：水-土-水耦合系统的动力学分析

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This paper explores the possible integration of the dynamic analyses of interaction of pore fluid flow and porous structure. The generalized fluid-structure interaction (FSI) algorithm in ADINA is applied for seismic analysis of a reservoir-earth dam-foundation system. In the given numerical example, water in the reservoir interacts with the earth dam on the upstream slope of the dam, and the foundation at the reservoir bottom. Pore water couples with soil particles throughout the earth dam and foundation. The reservoir water is modeled using both the Navier-Stokes equation based fluid element and the subsonic potential based fluid element. In the coupled analysis, hydrodynamic pressures and velocities are presented in the reservoir zone, while displacements, pore pressures and stresses are given for the earth dam and foundation domains at any earthquake time. The generalized FSI model is of great significance in performing soil liquefaction analysis if an appropriate soil plasticity model is employed in accounting for cyclic behavior of soils.
机译：本文探讨了孔隙流体流动与多孔结构相互作用的动力学分析的可能整合。 ADINA中的广义流固耦合算法（FSI）用于水库土坝基础系统的地震分析。在给定的数值示​​例中，水库中的水与大坝上游斜坡上的土坝以及水库底部的地基相互作用。孔隙水与土坝和地基中的土壤颗粒耦合。使用基于Navier-Stokes方程的流体单元和基于亚音速势的流体单元对储层水进行建模。在耦合分析中，给出了水库带的水动力压力和速度，同时给出了在任何地震时间的土坝和地基区域的位移，孔隙压力和应力。如果采用适当的土壤可塑性模型来解释土壤的循环特性，那么广义的FSI模型在进行土壤液化分析中将具有重要意义。

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