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Viscous Fluid damping
Posted Apr 5, 2012, 4:06 a.m. EDT Version 4.2a 1 Reply
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Hello,
I am trying to calculate the Q-factor for micro-mechanical resonators in fluids. To do this, I have to use FSI interface (navier stokes equation), doing a transient simulation and then calculate Q-factor.
However, The problem is that time domain simulations take a lot of time. So, could I use thermo-acoustic model in COMSOL which is based on linearized NS for viscous damping calculation ?
Also, what is the difference between using FSI (NS) and thermoacoustic solid interaction model (linearized NS)?
Is it all about the amplitude of solid displacement ?
Waiting for your reply
Regards,
Mohamed
I am trying to calculate the Q-factor for micro-mechanical resonators in fluids. To do this, I have to use FSI interface (navier stokes equation), doing a transient simulation and then calculate Q-factor.
However, The problem is that time domain simulations take a lot of time. So, could I use thermo-acoustic model in COMSOL which is based on linearized NS for viscous damping calculation ?
Also, what is the difference between using FSI (NS) and thermoacoustic solid interaction model (linearized NS)?
Is it all about the amplitude of solid displacement ?
Waiting for your reply
Regards,
Mohamed
1 Reply Last Post Apr 13, 2012, 5:47 p.m. EDT
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Posted:
1 decade ago
Any Help!!!!!!!!!!!!!!!!!!!!!!!!