Open Access

ARTICLE

Improved MPS-FE Fluid-Structure Interaction Coupled Method with MPS Polygon Wall Boundary Model

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1 The University of Tokyo, Hongo, Bunkyo, Tokyo, Japan.

Computer Modeling in Engineering & Sciences 2014, 101(4), 229-247. https://doi.org/10.3970/cmes.2014.101.229

Abstract

The MPS-FE method, which adopts the Finite Element (FE) method for structure computation and the Moving Particle Simulation (MPS) method for fluid computation involving free surfaces, was developed to solve fluid-structure interaction problems with free surfaces. The conventional MPS-FE method, in which MPS wall boundary particles and finite elements are overlapped in order to exchange information at a fluid-structure interface, is not versatile and reduces the advantages of the software modularity. In this study, we developed a nonoverlapping approach in which the interface in the fluid computation corresponds to the interface in the structure computation through an MPS polygon wall model. The accuracy of the improved MPS-FE method was verified by solving a dam break problem with an elastic obstacle and comparing the result obtained with that of the conventional MPS-FE method and particle FEM.

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