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Solid and Fluid motion with eigenfrequency study
Posted 2015年9月7日 GMT-4 18:01 Fluid & Heat, Acoustics & Vibrations, Computational Fluid Dynamics (CFD), Studies & Solvers, Structural Mechanics Version 4.4 1 Reply
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I made a very simple geometry in 2D, such as the cross-section of a microcapillary.
I want to find some eigenfrequency which can make a few modes on a microcapillary.
So, for the shell I used solid mechanics study and for the fluid in the shell, I chose the creeping flow.
To find eigenfrequency, I added pressure acoustics with frequency domain.
In study section, there was a problem because the creeping flow study couldn't be included in the eigenfrequency solver.
How can I use the creeping flow for a fluid which I want and can be used for a liquid in a microcapillary?
The most important thing is the eigenfrequency.
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I had the same problem and I struggled a lot to find a solution.
I asked the support, and they suggested to use the physics Linearized Navier-Stokes, Frequency Domain, under Acoustics->Aeroacoustics. In this way, it is possible to calculate the eigenfrequencies of a solid interacting with a fluid.
I am using the 5.1 version, I do not know if the older versions have this module.
I hope this helps.
Giorgio