INFLUENCE OF THE DRAG COEFFICIENT OF PARTICLES ON THEIR DISTRIBUTION IN A TWO-DIMENSIONAL ACOUSTIC RESONATOR

A numerical study is made of the plane problem on the drift of a group of particles in the rectangular-resonator′s standing wave induced by harmonic oscillations of the left boundary at the fi rst resonant frequency. The infl uence of the drag coeffi cient of particles on the dynamics and distribution of the particles in the resonator has been investigated. At certain drag coeffi cients, regions of acoustic capture of particles have been found. In these regions, the inherent particle drift is counterbalanced by the transfer by acoustic streaming. It has been shown that the particles share a common tendency to drift to resonator walls, where the gas velocity is minimum.
   
Author:  D. A. Gubaidullin, P. P Osipov, and R. R. Nasyrov
Keywords:  acoustic streamings, particle drift, acoustic traps.
Page:  688