Multi-scale simulation of granular flows

Details

Supervisors

Legat, Vincent

Faculty

Ecole polytechnique de Louvain

Degree label

Master [120] : ingénieur civil électromécanicien, à finalité spécialisée: mécatronique

Abstract

For years, scientists have performed experimentations to capture the interaction between grains and fluid under shearing stress, leading to more advanced comprehension of the rheological properties on this field. Starting with Einstein, who proposed a first approach based on low-compacity experiments and evolving to much more advanced computer models like Migflow. MigFLow is a software that is used to simulate fluid and particle interaction. The result data obtain from this program are compared to the scientific literature as validation. The interstitial fluid between particles can play an important role in the characteristic of the mixture. To capture the impact of this fluid on the particle, a dry-shear case and a shear case are simulated In Literature, the top boundaries of the shearing is often composed of grains align with each other that create a plate. The geometry of this boundary is quite special and is compared to a normal linear plate on the dry-shear case. The impact of the concentration on some physical parameters is also studied leading to a much more understanding of the rheological reaction of the system.