INFLUENCE OF THE POSITION OF A PARTICLE AND OF THE DRAG COEFFICIENT ON THE DRIFT VELOCITY IN AN ACOUSTIC RESONATOR

A study has been made of the drift velocity of particles in an acoustic resonator at the fi rst resonant frequency in standing and periodic shock waves. The notion of a local equilibrium velocity of particle drift has been introduced. A family of problems on the particle drift has been investigated numerically at different Mach and Reynolds numbers. The drift velocities of a particle have been plotted versus the drag coeffi cient and the position. The drag coeffi cient at which the particle drift velocity peaks has been found. At small and large drag coeffi cients, the particle drift velocity tends to zero. It has been shown that the maximum velocity of particle drift in the standing wave is one to two orders of magnitude smaller than that in the periodic shock wave.
   
Author:  D. A. Gubaidullin, P. P. Osipov, and R. R. Nasyrov
Keywords:  particle drift, drag coefficient, acoustic resonator
Page:  410