Abstract
The orthokinetic interaction is recognized as a major mechanism responsible for rapid agglomerations of polydisperse aerosols in a sound field. The acoustic agglomeration theory based on this mechanism was developed by Mednikov in the 1960s. However, this theory has two basic problems that are not answered satisfactorily: How many small particles in an agglomeration volume created by a large particle will actually be collected in one cycle and how many small particles outside will be attracted into the volume so that agglomeration can continue for successive cycles? These problems have been solved to the first‐order approximation in this investigation. A general expression for the specific acoustic agglomeration rate is derived by a statistical approach. The efficiency of collison between particles in a sinusoidal wave field is given explicitly. In addition, the analysis of the relative motion between particles was performed by including the effects of acoustic scattering from particles. The results show ...
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