We study experimentally the spatial distribution, settling and interaction of sub-Kolmogorov
inertial particles with homogeneous turbulence. Utilizing a zero-mean-flow air turbulence …

Turbulence is an effective way to spread particles and drops in a fluid, which is critical for
many energy systems, ranging from carbon-based power-production to spray cooling for …

In a seminal article, Maxey (J. Fluid Mech., vol. 174, 1987, pp. 441–465) presented a
theoretical analysis showing that enhanced particle settling speeds in turbulence occur …

Clusters of inertial particles in turbulence are usually identified from the spatial coherence of
the particle concentration field, neglecting their temporal persistence. The latter is in fact …

Despite decades of investigations, there is still no consensus on whether inertial particles
augment or dampen turbulence. Here, we perform the first experimental study in which the …

We experimentally investigate the behavior of instantaneous localized releases of heavy
particles falling as turbulent clouds in quiescent water, both with and without background …

When inertial particles are dispersed in a turbulent flow at sufficiently high concentrations,
the continuous and dispersed phases are two-way coupled. Here, we show via laboratory …

A particle-laden homogeneous isotropic turbulent flow is studied experimentally to
understand the role of collective effects (eg particle–particle aerodynamic interactions …

Characteristics of particle clustering in a particle-laden turbulent boundary layer at a
moderate frictional Reynolds number (-scaling in the log layer. Furthermore, the fluid-phase …

We present a sweep-stick mechanism for heavy particles transported by a turbulent flow
under the action of gravity. Direct numerical simulations show that these particles …