Numerical study of violent sloshing during earthquake excitation using coupled CFD/FEA and SPH approaches

摘要

In this article the coupled sloshing dynamics in a rectangular vertical ground supported tank was studied using two models developed in Ansys-Workbench environment: a coupled CFX-Ansys Mechanical and a Smoothed Particle Hydrodynamics (SPH) model. The main objectives were to verify the feasibility of using a CFD/FEA and SPH models for a time-history analysis of a storage tank and to investigate the influence of the coupling upon the sloshing characteristics and reaction loads. This paper has focused attention on the advantages of the SPH vs. CFD/FEA approaches in studying the effects of the wall elasticity during violent free surface sloshing of the fluid. The solutions are presented in terms of pressure and velocity distributions and liquid wave height during the transient.