The behaviour of dense assemblies of dry grains submitted to continuous shear deformation
has been the subject of many experiments and discrete particle simulations. This paper is a …

Separation on the rear-end of an Ahmed body is suppressed by means of large-scale
coherent streaks forced on the roof of the model. These streaks originate from an array of …

This work proposes a model for granular deformation that predicts the stress and velocity
profiles in well-developed dense granular flows. Recent models for granular elasticity [Jiang …

The kinematics and the shear-induced alignment of elongated particles in confined,
heterogeneous flow conditions are investigated experimentally. Experiments are conducted …

This paper deals with model reduction of high-order linear systems. An alternative method to
approximate proper orthogonal decomposition (POD) and balanced truncation is exposed in …

In this study, positions, velocities, and rotations of monodisperse disks confined two-
dimensionally in a glass-walled chute are measured using a high-speed camera. Steady …

This paper presents numerical findings on rapid 2D and 3D granular flows on a bumpy
base. In the supported regime studied here, a strongly sheared, dilute and agitated layer …

In this work we discuss a scaling law for wall friction weakening in three-dimensional, dense,
fully confined granular flows made of shape anisotropic particles. Using particle-based …

As a complementary tool to laboratory experiments, discrete numerical simulation, applied to
granular materials, provides valuable information on the grain and contact scale …

Granular materials such as sand or gravel surround us everyday and yet remain poorly
understood. In this thesis, two models are developed for dense granular flow, each capable …