FSI Analysis - High frequency problem?
FSI Analysis - High frequency problem?
(OP)
Hello everybody,
I am doing the FSI analysis in 3D model. In my model, the solid boundary will move with a particular freqency and amplitude, when this boundary moves it causes the boundary of the fluid change, so that we have something like a pump.
At the frequence f=100Hz, I got a nice result, i.e the flux of the flow is considerable large. However, when I increase f=7000 Hz (which is the same with my device), I have no flux of the flow (it's too small compare with f=100Hz, which is supposed to be smaller).
I got stuck with it for a long time, and have no idea how to solve it.
I am free to show all of you my model, please help me if you have experience.
Also, contact me anytime at dauthanhvan@gmail.com.
Regards.
I am doing the FSI analysis in 3D model. In my model, the solid boundary will move with a particular freqency and amplitude, when this boundary moves it causes the boundary of the fluid change, so that we have something like a pump.
At the frequence f=100Hz, I got a nice result, i.e the flux of the flow is considerable large. However, when I increase f=7000 Hz (which is the same with my device), I have no flux of the flow (it's too small compare with f=100Hz, which is supposed to be smaller).
I got stuck with it for a long time, and have no idea how to solve it.
I am free to show all of you my model, please help me if you have experience.
Also, contact me anytime at dauthanhvan@gmail.com.
Regards.





RE: FSI Analysis - High frequency problem?
RE: FSI Analysis - High frequency problem?
Sorry that I havent made my question clear. My problem is that the unreasonable results. This is the results of the pump 100HZ create much larger output than the pump 7000Hz. Though the solution all are convergent.
Would you give some more advice?
RE: FSI Analysis - High frequency problem?
RE: FSI Analysis - High frequency problem?
Tthere is a nozzle which the fluid flows through, and the fluid is incompressible, laminar flow. This is a piezoelectric pump, however, I did not mention about the piezoelectric effect at this time.
Regards,
Thanh Van.