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liquid loading

Posted 19.04.2013, 10:27 GMT-4 MEMS & Nanotechnology, Piezoelectric Devices, Acoustics & Vibrations, MEMS & Piezoelectric Devices, Geometry, Materials Version 4.2 1 Reply

Anumeha Dwivedi
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I'm a beginner level COMSOL user and new to this forum. So please excuse me if I happen to ask a really silly question. I've been trying to simulate the behaviour of a piezoelectric crystal upon viscous liquid loading (a thin film of liquid which affects resonance by changing impedance of the crystal) but I'm having trouble since adding a new layer in the geometry asks for coupling coefficients, strain and relative permittivity matrix, which I can't provide for the liquid, only for the crystal. I only want to observe how the viscosity of liquid is affecting crystal resonance and can provide only viscosity data. I tried loading the crystal..using "added mass" for the crystal which works but that uses just density data, viscosity doesn't come into picture at all. Also it would be great if someone could help me as to how to observe the impedance changes w.r.t viscosity changes. Can someone guide me through the procedure? Thanks in advance!
1 Reply Last Post 21.06.2013, 10:27 GMT-4
COMSOL Moderator

Hello Anumeha Dwivedi

Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.

If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

Omer Ozdemir
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Posted: 1 decade ago 21.06.2013, 10:27 GMT-4
Hi Anumeha,

I am trying to solve a similar problem. Could you figure out your problem?

Thanks,

Omer
Hi Anumeha, I am trying to solve a similar problem. Could you figure out your problem? Thanks, Omer

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