In this work we examine how particle dynamics and orientation patterns can revel
information about fluid structures, how particles can be used as a device to measure fluid …

We examine the spatial field of orientations of slender fibers that are advected by a two-
dimensional fluid flow. The orientation field of these passive directors are important in a wide …

The curvature field is measured from tracer-particle trajectories in a two-dimensional fluid
flow that exhibits spatiotemporal chaos and is used to extract the hyperbolic and elliptic …

By measuring the tracks of tracer particles in a quasi-two-dimensional spatiotemporally
chaotic laboratory flow, we determine the instantaneous curvature along each trajectory and …

Understanding the mechanisms that control three-dimensional (3D) fluid transport is central
to many processes, including mixing, chemical reaction, and biological activity. Here a novel …

Material elements–which are lines, surfaces, or volumes behaving as passive, non-diffusive
markers–provide an inherently geometric window into the intricate dynamics of chaotic …

We review recent advances on the dynamics of finite–size particles advected by chaotic fluid
flows, focusing on the phenomena caused by the inertia of finite–size particles which have …

By studying the shape dynamics of three-particle clusters, we investigate the statistical
geometry of a spatiotemporally chaotic experimental quasi-two-dimensional flow. We show …

By extending traditional particle tracking techniques, we study the dynamics of neutrally
buoyant finite-sized particles in a spatiotemporally chaotic flow. We simultaneously measure …

In 2-D time-dependent fluid flows, a patch represents a localized region in space that has a
significantly different average velocity compared to its surroundings. We show that one can …