Numerical simulation of oil tank behavior under seismic excitation. fluid - structure interaction problem solution

The present paper is devoted to numerical simulation of sloshing inside a partially filled cylindrical thin-wall tank induced by seismic loads. During the calculations fluid structure interaction (FSI) problems are taken into account. The numerical simulations are performed for both linear (Lagrangian formulation - ANSYS Mechanical) and nonlinear (arbitrary Lagrangian-Eulerian formulation - ABAQUS/Explicit) conditions. Problem formulation, finite element discretization, simultaneous and partitioned solution procedures are discussed. As an example designed and/or already erected oil tank are considered. The results obtained are compared with an analytical solution and domestic code technique. (C) 2015 Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).