Bouncing, chasing, or pausing: Asymmetric collisions of active droplets
Kevin Lippera, Michael Benzaquen, Sébastien Michelin
Abstract
Small differences in the size of colliding chemically active droplets lead to three strikingly different dynamic behaviours: (i) an asymmetric rebound where both droplets reverse directions, (ii) a chasing regime leading to a bound state with both droplets swimming together, and (iii) a pausing regime where the larger droplet is temporarily stopped. Such diversity and sensitivity of the exact droplet properties may influence the complex collective dynamics of chemically active droplets.
Topics & Concepts
Chemical physicsPhysicsDynamics (music)MechanicsMaterials scienceChemistrySteady state (chemistry)Liquid stateCurrent (fluid)NanotechnologyMolecular dynamicsWork (physics)Classical mechanicsMicro and Nano RoboticsPickering emulsions and particle stabilizationModular Robots and Swarm Intelligence