| Issue |
EPJ Web Conf.
Volume 140, 2017
Powders and Grains 2017 – 8th International Conference on Micromechanics on Granular Media
|
|
|---|---|---|
| Article Number | 11011 | |
| Number of page(s) | 4 | |
| Section | Continuum modeling | |
| DOI | https://doi.org/10.1051/epjconf/201714011011 | |
| Published online | 30 June 2017 | |
https://doi.org/10.1051/epjconf/201714011011
A comparison between DEM and MPM for the modeling of unsteady flow
1 Univ. Grenoble Alpes, 3SR, F-38000, Grenoble, France
2 IMSRN, Montbonnot, F-38330, France
* e-mail: fabio.gracia@3sr-grenoble.fr
Published online: 30 June 2017
In order to provide a comprehensive comparison between two current numerical methods employed in the modeling of rock avalanches, the Discrete Element Method (DEM) [3] and the Material Point Method (MPM) [1] were used to simulate the mass propagation along a 45° plane transitioning to an horizontal plane. When using the DEM, a 3D code using tetrahedral elements was used and the flow was channelized by means of frictionless walls. For the MPM simulations, a 2D code was developed and plane strain simulations were run. Comparisons were made in terms of run-out distance and energy dissipated. Influence of parameters such as initial sample geometry, basal friction coefficient and shape of blocks composing the sample was studied.
© The Authors, published by EDP Sciences, 2017
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