307 citations · 1.4k across the 18 of their papers we have counts for
8 papers · 1 filter
Modeling collective behaviors from optic flow and retinal cues
Diego Castro, Franck Ruffier, Christophe Eloy
Animal collective behavior is often modeled with self-propelled particles, assuming each individual has ``omniscient'' knowledge of its neighbors. Yet, neighbors may be hidden from…
Searching for a source without gradients: how good is infotaxis and how to beat it
Aurore Loisy, Christophe Eloy
Infotaxis is a popular search algorithm designed to track a source of odor in a turbulent environment using information provided by odor detections. To exemplify its capabilities,…
Rebound and scattering of motile Chlamydomonas algae in confined chambers
Albane Théry, Yuxuan Wang, Mariia Dvoriashyna +3
Motivated by recent experiments demonstrating that motile algae get trapped in draining foams, we study the trajectories of microorganisms confined in model foam channels (section…
Tree crowns grow into self-similar shapes controlled by gravity and light sensing
L. Duchemin, C. Eloy, E. Badel +1
Plants have developed different tropisms: in particular, they re-orient the growth of their branches towards light (phototropism) or upwards (gravitropism). How these tropisms affe…
Model of collective fish behavior with hydrodynamic interactions
Audrey Filella, François Nadal, Clément Sire +2
Fish schooling is often modeled with self-propelled particles subject to phenomenological behavioral rules. Although fish are known to sense and exploit flow features, these models…
Shape of optimal active flagella
Christophe Eloy, Eric Lauga
Many eukaryotic cells use the active waving motion of flexible flagella to self-propel in viscous fluids. However, the criteria governing the selection of particular flagellar wave…
Kinematics of the most efficient cilium
Christophe Eloy, Eric Lauga
In a variety of biological processes, eukaryotic cells use cilia to transport flow. Although cilia have a remarkably conserved internal molecular structure, experimental observatio…
Leonardo's rule, self-similarity and wind-induced stresses in trees
Christophe Eloy
Examining botanical trees, Leonardo da Vinci noted that the total cross-section of branches is conserved across branching nodes. In this Letter, it is proposed that this rule is a…