2007/09/06 by Vladimir Lobaskin, Dmitry Lobaskin, D. Lobaskin +2 · 37 citations
Engineering · Physics and Astronomy · #Brownian dynamics #Brownian motion #Classical mechanics #Computer science #Constant (computer programming) #Diffusion #Dissipation #Dynamics (music) #Fick's laws of diffusion #Materials science #Mechanics #Micro and Nano Robotics #Microfluidic and Bio-sensing Technologies #Molecular Communication and Nanonetworks #Particle (ecology) #Physics #SPHERES #Spinning #Thermodynamics #physics.bio-ph #physics.flu-dyn
paper · pdf · doi:10.1140/epjst/e2008-00637-7
published in The European Physical Journal Special Topics 157(1), 149-156 (Springer Science+Business Media) · Submitted
arxiv created 2007/09/06 · openalex publication_date 2008/04/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We report on dynamic properties of a simple model microswimmer composed of three spheres and propelling itself in a viscous fluid by spinning motion of the spheres under zero net torque constraint. At a fixed temperature and increasing the spinning frequency, the swimmer demonstrates a transition from dissipation-dominated to a pumping-dominated motion regime characterized by negative effective friction coefficient. In the limit of high frequencies, the diffusion of the swimmer can be described by a model of an active particle with constant velocity.