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Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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CFD_Solid and liquid coupling problem

Posted 2011年11月17日 GMT-5 04:34 Fluid & Heat, Computational Fluid Dynamics (CFD), Results & Visualization, Studies & Solvers Version 4.1 4 Replies

Yang Wei
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Hello,

I have been doing a pump simulation but the results are incorrect. From literature, a valve less micropump should have sin wave inflow and outflow if a sin input is applied. However, my simulation result seems weird. Inflow is almost a mirror of the outflow (pls see attachment).

I am not sure what happened but at least all BCs are set up properly. Initial conditions are U0=0 and P=0. There are no errors or warnings popping up during the simulation.

Does anyone know the problem??

I appreciate any help or suggestions.


Attachments:

4 Replies Last Post 2011年11月24日 GMT-5 10:55
Yang Wei
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Posted: 1 decade ago 2011年11月17日 GMT-5 08:08
Any help & suggestions?

(*_*)


Any help & suggestions? (*_*)
Yang Wei
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Posted: 1 decade ago 2011年11月17日 GMT-5 21:35
The problem has been solved by myself.

What happened before was the error estimation and iteration.

I significantly increased both parameters and the results is reasonable.


Thank you guys.
The problem has been solved by myself. What happened before was the error estimation and iteration. I significantly increased both parameters and the results is reasonable. Thank you guys.
Arlindo Garcia
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Posted: 1 decade ago 2011年11月24日 GMT-5 10:54
Hello Yang Wei,

I also have tried to do simulations on valveless, and my results are different from the literature.
Could you help me?

arlindo.neto@ee.ufcg.edu.br

Thanks
Hello Yang Wei, I also have tried to do simulations on valveless, and my results are different from the literature. Could you help me? arlindo.neto@ee.ufcg.edu.br Thanks
Yang Wei
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Posted: 1 decade ago 2011年11月24日 GMT-5 10:55
Hi,

What`s your problem and what the differences you have received?


regards,


Yang
Hi, What`s your problem and what the differences you have received? regards, Yang

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