Formation of inverse Chladni patterns in liquids at microscale: roles of acoustic radiation and streaming-induced drag forces.

ABSTRACT: While Chladni patterns in air over vibrating plates at macroscale have been well studied, inverse Chladni patterns in water at microscale have recently been reported. The underlying physics for the focusing of microparticles on the vibrating interface, however, is still unclear. In this paper, we present a quantitative three-dimensional study on the acoustophoretic motion of microparticles on a clamped vibrating circular plate in contact with water with emphasis on the roles of acoustic radiation and streaming-induced drag forces. The numerical simulations show good comparisons with experimental observations and basic theory. While we provide clear demonstrations of three-dimensional particle size-dependent microparticle trajectories in vibrating plate systems, we show that acoustic radiat

SUBMITTER: Lei J 

PROVIDER: S-EPMC7089712 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature