Acoustic streaming from a vibrating needle in a droplet

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Hi all,

I want to simulate an acoustic streaming phenomenon generated by putting an ultrasonically vibrating needle in a droplet, and the tip of the needle would generate a suction caused by acoustic streaming.

I've read the documentation about the acoustic streaming part, but when I did a simple 2D simulation, I got an outward streaming instead of a suction streaming, even more, the direction of the Lagrangian velocity field and the original laminar flow velocity field are opposite.

My simulation includes thermoviscous acoustics, laminar flow, and the acoustic streaming domain coupling, are these nodes correctly describe the acoustic streaming I want to have?

Should I add acoustic streaming boundary coupling also or is there any simulation setting I missed?


0 Replies Last Post 2024年7月17日 GMT+2 11:38
COMSOL Moderator

Hello 宇宣 林

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