An hybrid multiscale model for immersed granular flows
(2017) Powders and Grains 2017 – 8th International Conference on Micromechanics on Granular Media — Location: Montpellier France (3.July.2017)
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- Authors
Constant, Matthieu 
- Abstract
- 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.
- Affiliations
Citations
Constant, M., Dubois, F., Lambrechts, J., & Legat, V. (2017). An hybrid multiscale model for immersed granular flows. EPJ Web of Conferences, 140, 9-21. https://doi.org/10.1051/epjconf/201714009021 (Original work published 2017)