Sediment transport simulations face the challenge of accounting for vastly different scales in
space and time that cannot be tackled by a unifying approach. Instead, processes are …

Two unequal rigid spheres are immersed in unbounded fluid and are acted on by externally
applied forces and couples. The Reynolds number of the flow around them is assumed to be …

We present a collision model for particle-particle and particle-wall interactions in interface-
resolved simulations of particle-laden flows. Three types of interparticle interactions are …

The hydrodynamic force resisting the relative motion of two unequal drops moving along
their line of centers is determined for Stokes flow conditions. The drops are assumed to be in …

The gravity-driven motion of rigid particles in a viscous fluid is relevant in many natural and
industrial processes, yet this has mainly been investigated for spherical particles. We …

It has been recognized that, generally, large particles enhance the turbulence intensity,
while small particles attenuate the turbulence intensity. However, there has been no …

Drag force is essential to dense flows, but the accurate and robust drag model is still an
open issue. Direct numerical simulations of a shallow and a deep bubbling bed of moving …

We investigate the performance of the force-coupling method (FCM) for particulate flow at
microscales. In this work, we restrict attention to flows where we may neglect fluid inertia …

We developed a boundary integral formulation to simulate a red blood cell (RBC) squeezing
through a submicron slit under prescribed inlet and outlet pressures. The main application of …

The effects of the particle collision model in a direct-forcing fictitious domain method on the
fluid and particle statistics of a fully developed turbulent channel flow laden with finite-size …