Inorganic colloidal particles which are in situ hydrophobized upon adsorption of short-chain amphiphilic molecules can be used as foam stabilizers. In this study, we tailor the microstructure of particle-stabilized wet foams, namely, the foam air content, average bubble size, and bubble size distribution, by changing the composition of the initial colloidal suspension. Wet foams featuring avera...

Phys. Fluids 23, 107102 (2011) Particle accumulation on periodic orbits by repeated free surface collisions Phys. Fluids 23, 072106 (2011) Drag force of a particle moving axisymmetrically in open or closed cavities J. Chem. Phys. 135, 014904 (2011) Modal and non-modal stability of particle-laden channel flow Phys. Fluids 23, 064110 (2011) The suspension balance model revisited Phys. Fluids 23, ...

Simulated particle networks (different solid colors) in a strongly attractive suspension at low shear stress. The distribution of the typical cluster size transient regime is more fragmented, prompting unstable behavior suspension.

We report the discovery of a new class of an electric field-driven bulk phase transition due solely to dipolar interactions in a suspension under the action of a uniform ac field where the effects of other competing forces are suppressed. This transition appears after the well-known chain-column formation and causes the uniform suspension of columns to rearrange into a cellular pattern consisti...

The existence of secondary flows in the pressure-driven flow of a concentrated suspension of noncolloidal particles through a conduit of square cross section under creeping flow conditions is confirmed experimentally. This Letter lends support to the idea that secondary currents, rather than shear-induced migration, may actually be the dominant mechanism that determines particle distribution in...

The complexity of the interactions between the constituent granular and liquid phases of a suspension requires an adequate treatment of the constituents themselves. A promising way for numerical simulations of such systems is given by hybrid computational frameworks. This is naturally done, when the Lagrangian description of particle dynamics of the granular phase finds a correspondence in the ...