On the shape-dependent propulsion of nano- and microparticles by traveling ultrasound waves
Johannes Voß, Raphael Wittkowski
Abstract
hollow shapes. We also study the flow field generated around such particles. Our results reveal that pointedness leads to an increase of the propulsion speed, whereas it is not significantly affected by hollowness. Furthermore, we show that the flow field near to ultrasound-propelled particles can look similar to the flow field generated by pusher squirmers.
Topics & Concepts
PropulsionFlow (mathematics)Field (mathematics)Traveling waveMechanicsMechanism (biology)Particle (ecology)AcousticsAerospace engineeringMaterials scienceUltrasoundPhysicsFluid dynamicsDynamics (music)CavitationComputational fluid dynamicsCurrent (fluid)Mechanical engineeringEngineeringMicro and Nano RoboticsMicrofluidic and Bio-sensing TechnologiesPickering emulsions and particle stabilization