Predicting the morphodynamics of sedimentary landscapes due to fluvial and aeolian flows
requires answering the following questions: Is the flow strong enough to initiate sediment …

The geometry of alluvial river channels both controls and adjusts to the flow of water and
sediment within them. This feedback between flow and form modulates flood risk, and the …

When deformed beyond their elastic limits, crystalline solids flow plastically via particle
rearrangements localized around structural defects. Disordered solids also flow, but without …

The coupling of computational fluid dynamics (CFD) and discrete element method (DEM)
has become an important method for studying dense fluidized beds. Since DEM can track …

This laboratory study advances our understanding of sediment transport in vegetated
regions, by describing the impact of stem density on the critical velocity, Ucrit, at which …

Earth's surface is composed of a staggering diversity of particulate–fluid mixtures: dry to wet,
dilute to dense, colloidal to granular and attractive to repulsive particles. This material variety …

When the water discharge, sediment supply, and base level vary around stable values, an
alluvial river evolves toward a mean equilibrium or graded state with small fluctuations …

Rivers are the great shapers of terrestrial landscapes. Very few points on Earth above sea
level do not lie within a drainage basin. Even points distant from the nearest channel are …

We present a thermodynamically consistent constitutive model for fluid-saturated sediments,
spanning dense to dilute regimes, developed from the basic balance laws for two-phase …

River bed-load transport is a kind of dense granular flow, and such flows are known to
segregate grains. While gravel-river beds typically have an “armoured” layer of coarse …