Size-dependent particle migration and trapping in three-dimensional microbubble streaming flows
Andreas Volk, Massimiliano Rossi, Bhargav Rallabandi, Christian J. Kähler, Sascha Hilgenfeldt, Alvaro Marin
Abstract
Finite-sized particles in complex flow fields often experience migration and trapping. Using three-dimensional particle tracking and numerical simulations, it is shown that even density-matched microparticles can experience migration and trapping because of their interaction with boundaries. This effect is particularly sound when particles are being advected in the complex three-dimensional flow generated by oscillating microbubbles confined in a microchannel.
Topics & Concepts
TrappingParticle (ecology)MicrobubblesFlow (mathematics)Tracking (education)MechanicsMaterials sciencePhysicsOpticsField (mathematics)Ultrafine particleMixing (physics)AcousticsMicrofluidic and Bio-sensing TechnologiesMicro and Nano RoboticsPickering emulsions and particle stabilization