BROUZET , Christophe

Long, flexible fibers transported by a turbulent channel flow sample non-linear variations of the fluid velocity along their length. As the fibers tumble and collide with the boundaries, they bounce off with an impulse that propels them toward the center of the flow, similar to pole vaulting. As a result, the fibers migrate away from the walls,...

The dynamics of flexible fibres in wall-bounded turbulent flows is a topic of great concern in various fields, such as environmental science, pharmaceutical or pulp and paper industries. The transport and orientation of fibres in wall-bounded turbulent flows have been extensively studied in the past decades, but mainly for rigid and short...

Geological storage of CO2 in deep saline aquifers is a promising measure to mitigate global warmingby reducing the concentration of this greenhouse gas in the atmosphere. When CO2 is injected in thegeological formation, it dissolves partially in the interstitial brine, thus rendering it denser than theCO2-devoid brine below, which creates a...

Vertical soap films drain under the influence of gravity, as indicated by the downward motion of colorful horizontal interference fringes observed on their surfaces. In this study conducted with rectangular soap films, we experimentally characterize the descent dynamics of these isothickness fringes and report its self-similar nature. We also...

Fishes, cetaceans, and many other aquatic vertebrates undulate their bodies to propel themselves through water. Swimming requires an intricate interplay between sensing the environment, making decisions, controlling internal dynamics, and moving the body in interaction with the external medium. Within this sequence of actions initiating...