404 citations · 3k across the 61 of their papers we have counts for
62 papers
Long rigid fibres in a turbulent channel flow: comparison between experiments and simulations
Defa Sun, Florian Zumbo, Christophe Pitiot +4
The dynamics of long rigid fibres transported by turbulent channel flow are investigated experimentally and numerically. Experiments use polystyrene fibres of three lengths, $\ell/…
Harnessing swarms for directed migration of interacting active particles via optimal global control
Chiara Calascibetta, Laëtitia Giraldi, Jérémie Bec
This study investigates the use of global control strategies to enhance the directed migration of swarms of interacting self-propelled particles confined in a channel. Uncontrolled…
Surface quasigeostrophic turbulence: The refined study of an active scalar
Nicolas Valade, Jérémie Bec, Simon Thalabard
SQG describes the 2D active transport of a scalar field, such as temperature, which -- when properly rescaled -- shares the same physical dimension of length/time as the advecting…
Effects of collective patterns, confinement, and fluid flow on active particle transport
Chiara Calascibetta, Laetitia Giraldi, Zakarya El Khiyati +1
The self-organization of active particles on a two-dimensional single-occupancy lattice is investigated, with an emphasis on the effects of boundary confinement and the influence o…
Homogeneous turbophoresis of heavy inertial particles in turbulent flow
Jérémie Bec, Robin Vallée
Heavy particles suspended in turbulent flow possess inertia and are ejected from violent vortical structures by centrifugal forces. Once piled up along particle paths, this small-s…
Finite-time Lyapunov exponents of deep neural networks
L. Storm, H. Linander, J. Bec +2
We compute how small input perturbations affect the output of deep neural networks, exploring an analogy between deep networks and dynamical systems, where the growth or decay of l…