Abstract
Low frequency actuations can be used in open fluid systems to manipulate particles at the solid-liquid interface. The generation of capillary waves at resonance at the liquid-air interface results in the collection of particles over multiple cycles. A simulated flow field for a rectangular chamber undergoing vertical vibrations is used, along with a particle tracing algorithm, to track the movement of particles at different regions in the chamber; these data have been supported by experimental findings. Particle motion over a cycle has been characterized for this system and compared with the collection observed in horizontally actuated chambers. The relationship between collection behavior and a range of different particle and fluid field parameters is presented qualitatively and quantitatively.
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