Hi.
I tried to refer to example 'Acoustic Levitator' provided by comsol.
But when I reduced the geometry size, I couldn't see the particles moving.
I want to use a micro-channel. But it doesn't work.
Is the cause of that a problem with normal acceleration? Or is there another reason?
I'll be waiting for your answer.
Thank you
Since you've reduced the dimensions, have you also adjusted parameters effective in this physical system (e.g. frequency, wavelength, etc.) accordingly? In other words do you expect same particles will move in the real-world situation given the parameters you've used in your simulation?
Do you see a few pressure nodes in your pressure distribution across your simulated microchannel? If, for example, your frequency is not high enough you'll not see pressure nodes in your microchannel so naturally particles won't move much (because they don't feel pressure variation).
see
https://doc.comsol.com/5.4/doc/com.comsol.help.particle/IntroductionToParticleTracingModule.pdf
Im not familiar with the specifics of the software Perhaps the question is in that it analyses the process in a 2 D instead of a 3 D Just thinking
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