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Is an MEMS module the only way?
Posted Oct 5, 2012, 4:40 p.m. EDT Version 4.3 2 Replies
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Hello, I am quite new to COMSOL, but I would like to use it for a cfd simulation.
I was just wondering about a problem I had with a simulation I would like to run. I would like to model a vibrating plate's effect on the surrounding fluid (Stoke's second problem), but after doing some research, I have concluded that using FSI within the MEMS module is the only way to accomplish what I want to do.
Because my school's computer doesn't have the MEMS module, would any more experienced users of COMSOL be able to tell me if my simulation is feasible without using the MEMS module?
Thank you for reading!
I was just wondering about a problem I had with a simulation I would like to run. I would like to model a vibrating plate's effect on the surrounding fluid (Stoke's second problem), but after doing some research, I have concluded that using FSI within the MEMS module is the only way to accomplish what I want to do.
Because my school's computer doesn't have the MEMS module, would any more experienced users of COMSOL be able to tell me if my simulation is feasible without using the MEMS module?
Thank you for reading!
2 Replies Last Post Oct 6, 2012, 4:40 p.m. EDT
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Posted:
1 decade ago
I believe you have a second option. FSI also comes with the Structural Mechanics Module.
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Posted:
1 decade ago
Hi
the only thing is that FSI does not allow for eigenfrequency solving, not even harmonic frequency domain !
A first approcimation of structure fluid interaction, assuming a large fluid volume and without any interest in the fluid part, is to load the common fluid-structure surface with an added mass from the fluid displaced, then additionally one might try to tweak some vicosity approximation in.
Another very nice way was propoed at the 2009 confrence in Milano, by A. Ricci, the description is in detail for 3.5 and can be fond on the main COMSOL web site conference papers
--
Good luck
Ivar
the only thing is that FSI does not allow for eigenfrequency solving, not even harmonic frequency domain !
A first approcimation of structure fluid interaction, assuming a large fluid volume and without any interest in the fluid part, is to load the common fluid-structure surface with an added mass from the fluid displaced, then additionally one might try to tweak some vicosity approximation in.
Another very nice way was propoed at the 2009 confrence in Milano, by A. Ricci, the description is in detail for 3.5 and can be fond on the main COMSOL web site conference papers
--
Good luck
Ivar