Numerical Simulation of the Influence of Particle Size Ratio on Acoustic-manipulated Particle Separation
The particle manipulation technology based on standing wave surface acoustic waves has been widely applied due to its high efficiency and low consumption, but relying solely on experimental methods and theoretical research is difficult to comprehensively study particle motion at the microscopic scale. A numerical simulation was conducted on the process of acoustic separation of micro particles in microfluidics, and the influence of particle size ratios of different particle sizes on the particle separation process was further studied. The results indicate that the closer the particle sizes of the two types of particles are, the more difficult it is to separate them. The larger the particle size difference, the better the particle separation effect. The essence of the particle size ratio affecting the particle separation process is that it affects the difference between the sound field forces acting on small and large particles.
particle separationdiscrete element methodsurface acoustic wavemicrofluid
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