Dynamic Analysis of Pine Flat Concrete Dam: Acoustic Fluid-Structural Interaction with ANSYS Workbench

Abstract

This paper presents a numerical study of the Pine Flat Dam, a 120 m high concrete gravity dam. The paper deals with the dynamic finite element analysis of the dam for different loads and water levels. The fluid structure interaction is considered through the explicit modeling of the reservoir as acoustic domain within ANSYS. The paper aims at showing the influence of the water level on the dynamic behavior of the dam. Furthermore, the differences in the dynamic behavior comparing the results of a 2D to the results of a 3D model are highlighted. The presented work is a contribution to the “15th ICOLD International Benchmark Workshop on Numerical Analysis of Dams” held in 2019.