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Modeling a Piezoelectric Resonator in a Fluid
Posted 2021年7月13日 GMT-4 11:38 Piezoelectric Devices, Fluid & Heat 2 Replies
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Hello!
I am trying to model a piezoelectric oscillator within a fluid. However, when producing a frequency graph to find the resonance, I receive the same frequence regardless of the liquid used. I am currently using solid mechanics coupled to the electrostatics through the piezoelectric effect multiphysics. I have also tried it with and without laminar flow but it appears to not affect the outcome of the graph.
I think the problem is that COMSOL is not reading it as a fluid and is just looking at the piezoelectric oscillations of the structure or it is using the eigenmodes. I was wondering if their were any suggestions on how to get COMSOL to recognize the fluid around the resonator.
Thanks so much!
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Rachel,
you need to use the acoustic-solid coupling to couple into the fluid. There are examples in the application library.
Cheers Edgar
-------------------Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
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Thank you!