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Help with Ill-conditioned preconditioner warning
Posted 08.07.2011, 19:29 GMT-4 Version 4.1 1 Reply
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Hi all,
I am trying to model the effect of flowing water on a non-permeable membrane in a volume of water. The membrane is pushed upward by an applied pressure ranging from 1000 to 2000 Pa. The water flows over the membrane at a rate of 1L/hr.
When I try to solve the problem, however, I get an ill-conditioned preconditioner warning, which I assume is not good for the results. Also, the model does not converge for large applied pressures, which may or may not be a related problem.
I am a new comsol user, so let me know if anymore information is needed.
Thanks for any help, James
I am trying to model the effect of flowing water on a non-permeable membrane in a volume of water. The membrane is pushed upward by an applied pressure ranging from 1000 to 2000 Pa. The water flows over the membrane at a rate of 1L/hr.
When I try to solve the problem, however, I get an ill-conditioned preconditioner warning, which I assume is not good for the results. Also, the model does not converge for large applied pressures, which may or may not be a related problem.
I am a new comsol user, so let me know if anymore information is needed.
Thanks for any help, James
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1 Reply Last Post 11.07.2011, 14:24 GMT-4
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Posted:
1 decade ago
I seemed to have attached the wrong file. Here's the one i'm currently working on
Thanks for any help!
Thanks for any help!
Attachments: