https://doi.org/10.1051/epjconf/202124909006
Grid-algorithm improvements for dense suspensions of discrete element particles in finite element fluid simulations
Dep. of Mech. Eng. and Intelligent Systems, The University of Electro-Communications, 182-8585, 1-5-1 Chofugaoka, Chofu, Tokyo
* e-mail: jan@wilke-it.com
** e-mail: hg@mce.uec.ac.jp
Published online: 7 June 2021
For homogeneous systems like classical fluid dynamics and structural mechanics, finite element method (FEM) grid generation has reached a mature state. On the other hand, for multi-physics-problems like fluids with a high density of immersed particles, many researchers may not even be aware of the types of instabilities which may be triggered by unsuitable meshes. We review common types of grid generation, point out previously unrecognised types of instabilities for particles in fluids as well as remedies to obtain particle-fluid simulations with higher stability and fewer redundant degrees of freedom.
A video is available at https://doi.org/10.48448/y7ry-em34
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
