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Filling of a capillary channel
Posted 1 apr 2010, 18:44 GMT-4 1 Reply
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I am trying to simulate the filling of a capillary channel, using one of modle library which is provied by COMSOL
program.
I am almost an beginner of this program so I have just followed the procedure of the manual of the library.
I used LEVEL SET METHOD, kept all of parameter except for contact angle, and just modified the geometry of the capillary channel by increasing the channel height up to 20E-3 instead of 5E-4 and changing channel width from 1.5E-4 to 1.7E-4.
One more thing I changed is the value of TIME in solver parameter. I put 2second (or even 40s) insteady of 1E-3 second.
As I mentioned, other procedures and parameters are same as shown in the manual.
After several solve simulations, I have just continued to have the same message saying that I have failed the convergence.
In order to slove this problem, I changed the mesh less fine, but it didn't help.
I have no idea of what I should change to make it work and what the problem is even.
Thank you very much.
Hello Changho Choi
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