| Issue |
EPJ Web Conf.
Volume 140, 2017
Powders and Grains 2017 – 8th International Conference on Micromechanics on Granular Media
|
|
|---|---|---|
| Article Number | 09021 | |
| Number of page(s) | 4 | |
| Section | Fluids and particles | |
| DOI | https://doi.org/10.1051/epjconf/201714009021 | |
| Published online | 30 June 2017 | |
https://doi.org/10.1051/epjconf/201714009021
An hybrid multiscale model for immersed granular flows
1 Université catholique de Louvain, Avenue Georges Lemaître 4-6 bte L4.05.02, 1348, Louvain-la-Neuve, Belgique
2 Laboratoire de Mécanique et Génie Civil - CNRS/UM, Montpellier, France
3 Laboratoire de Micromécanique et Intégrité des Structures - CNRS/UM/IRSN, France.
* e-mail: matthieu.constant@uclouvain.be
** e-mail: frederic.dubois@umontpellier.fr
*** e-mail: jonathan.lambrechts@uclouvain.be
**** e-mail: vincent.legat@uclouvain.be
Published online: 30 June 2017
The intensive use of immersed granular flows has motivated a large amount of work in this field of research. We present here a new numerical model to represent accurately and effciently mixtures of fluid with grains. On one hand, the motion of the grains is solved at the grain scale by a contact dynamics method that consider grains as discrete elements. On the other hand, the fluid flow is computed from a continuous model of the mixture at a greater scale. The link between the two scales is provided by an interaction force based on the Darcy’s law for porous media and used as a closure relation in the equations of the model. Some results of simulations in a two dimensional space are provided to prove the effciency of the implementation.
© The Authors, published by EDP Sciences, 2017
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