An Improved Theoretical Model of Acoustic Agglomeration

[+] Author and Article Information
L. Song

Mobile Research and Development Corporation, Princeton, NJ 08543-1026

G. H. Koopmann

Center for Acoustics and Vibration, The Pennsylvania State University, University Park, PA 16802

T. L. Hoffmann

CSIC Instituto de Acustica, Calle Serrano 144, 28006 Madrid, Spain

J. Vib. Acoust 116(2), 208-214 (Apr 01, 1994) (7 pages) doi:10.1115/1.2930414 History: Received September 01, 1992; Online June 17, 2008


An improved theoretical model is developed to describe the acoustic agglomeration of particles entrained in a gas medium. The improvements to the present theories are twofold: first, wave scattering is included in the orthokinetic interaction of particles and second, hydrodynamic interaction, shown to be an important agglomeration mechanism for certain operation conditions, is incorporated into the model. The influence of orthokinetic and hydrodynamic interactions introduce associated convergent velocities that cause particles to approach each other and collide. The convergent velocities are related with an acoustic agglomeration frequency function (AAFF) through a semi-statistical method. This function is the key parameter for the theoretical simulation of acoustic agglomeration.

Copyright © 1994 by The American Society of Mechanical Engineers
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