We review flows of dense cohesionless granular materials, with a special focus on the
question of constitutive equations. We first discuss the existence of a dense flow regime …

Granular materials are ubiquitous in our daily lives. While they have been the subject of
intensive engineering research for centuries, in the last two decades granular matter has …

Sand, rice, sugar, snow, cement... Although ubiquitous in our daily lives, granular media still
challenge engineers and fascinate researchers. This book provides the state-of-the-art of the …

In this paper we study the steady uniform flows that develop when granular material is
released from a hopper on top of a static pile in a channel. More specifically, we focus on the …

The problem of the spreading of a granular mass released at the top of a rough inclined
plane was investigated. The evolution of the avalanche was measured experimentally from …

We study the scheme of formal arcs on a singular algebraic variety and its images under
truncations. We prove a rationality result for the Poincare series of these images which is an …

We report the results of an experimental investigation of the flow induced by the collapse of
a column of granular material (glass beads of diameter d⁠) over a horizontal surface. Two …

Aeolian processes involve the wind action on a sedimentary substrate, namely erosion,
sand transport and deposition. They are responsible for the emergence of aeolian dunes …

Almost fifty years of investigations of barchan dunes morphology and dynamics is reviewed,
with emphasis on the physical understanding of these objects. The characteristic quantities …

In this paper we present an experimental study of the long-surface-wave instability that can
develop when a granular material flows down a rough inclined plane. The threshold and the …