Activity-induced droplet propulsion and multifractality
Nadia Bihari Padhan, Rahul Pandit
Abstract
To address the collective motion of swimming organisms encapsulated in a droplet, an active-hydrodynamic framework is constructed for assemblies of contractile swimmers inside a binary-fluid droplet. At low activity, this yields a self-propelling droplet whose center of mass (CM) displays rectilinear motion. With increasing activity, this CM displays L\'evy-walk-type super-diffusive motion, and the droplet interface exhibits multifractal fluctuations.
Topics & Concepts
Center of mass (relativistic)Motion (physics)Collective motionPropulsionMultifractal systemMechanicsPhysicsBinary numberClassical mechanicsFractalMathematicsMathematical analysisThermodynamicsEnergy–momentum relationArithmeticMicro and Nano RoboticsModular Robots and Swarm IntelligenceLattice Boltzmann Simulation Studies