Dense suspensions of particles are relevant to many applications and are a key platform for
develo** a fundamental physics of out-of-equilibrium systems. They present challenging …

We review the experimental synthesis of smooth and rough particles, characterization of
surface roughness, quantification of the pairwise and bulk friction coefficients, and their …

Suspensions are considered from the perspective of development of their bulk fluid
mechanics. Suspension mechanics has had a fluid mechanical basis since its inception, as …

Pipe flows are commonly found in nature and industry as an effective mean of transporting
fluids. They are primarily characterized by their resistance law, which relates the mean flow …

Hypothesis: A number of dense particle suspensions experience a dramatic increase in
viscosity with the shear stress, up to a solid-like response. This shear-thickening process is …

Viscosity is an important property of out-of-equilibrium systems such as active biological
materials and driven non-Newtonian fluids, and for fields ranging from biomaterials to …

Recent theories predict that discontinuous shear thickening (DST) involves an instability, the
nature of which remains elusive. Here, we explore unsteady dynamics in a dense cornstarch …

Yielding behavior is well known in attractive colloidal suspensions. Adhesive non-Brownian
suspensions, in which the interparticle bonds are due to finite-size contacts, also show …

Shear thickening corresponds to an increase of the viscosity as a function of the shear rate. It
is observed in many concentrated suspensions in nature and industry: water or oil saturated …

We develop a tensorial constitutive model for dense, shear-thickening particle suspensions
subjected to time-dependent flow. Our model combines a recently proposed evolution …