Simulation of flow-induced multi-particle motion with fem-based method

This paper presents a finite element based explicit fluid-structure coupling method. The derived method is proposed to solve flow-induced multi-particle motion in the low Reynolds number flow. The particle motion is treated as a non-linear geometric dynamic problem. The Total-Lagrangian finite element method is applied to describe and discretize the particle domain. The Bathe method is used to integrate over the time domain. The quasi-steady Stokes equation is used as the governing equation of the fluid domain. Mixed finite element is applied to solve the fluid equation. An explicit coupling strategy is implemented between the interaction of particle and the zero-Reynolds number flow. Simulations of the flow-induced multi-particle motion with derived method are presented. © 2020 CAD Solutions, LLC,.