Diffusion of chiral janus particles in convection rolls
Yunyun Li, Lihua Li, Fabio Marchesoni, Debajyoti Debnath, Pulak K. Ghosh
Abstract
The asymptotic diffusion of an active Janus particle in a periodicarray of convection rolls is controlled by advection. Its normaldiffusion constant depends on the particle's rotational dynamics, dueto random and deterministic torques, alike. Numerical simulationconfirms the analytical prediction that large-scale diffusion occursmostly along the convection roll separatrices
Topics & Concepts
ConvectionDiffusionAdvectionMechanicsJanusParticle (ecology)PhysicsConstant (computer programming)Janus particlesScale (ratio)Classical mechanicsMaterials scienceThermodynamicsComputer scienceNanotechnologyGeologyProgramming languageQuantum mechanicsOceanographyMicro and Nano RoboticsPickering emulsions and particle stabilizationMicrofluidic and Bio-sensing Technologies