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Flow in simple geometry does not converge
Posted Jun 3, 2013, 2:08 p.m. EDT Computational Fluid Dynamics (CFD) 2 Replies
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It's been my first day with Comsol and it's CFD package, so please don't be too hard on me. I have (succesfully, I believe) built my first geometry. It consists of a tube that has several inlets on one side and is open on the other side.
Now I want a fluid (air) to enter through the biggest inlet in the middle and see how it develops. Unfortunately, I get an error saying that the Newton Iteration did not converge. Can anybody help? The file is attached below.
Now I want a fluid (air) to enter through the biggest inlet in the middle and see how it develops. Unfortunately, I get an error saying that the Newton Iteration did not converge. Can anybody help? The file is attached below.
Attachments:
2 Replies Last Post Jun 5, 2013, 3:39 a.m. EDT
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Posted:
1 decade ago
Hello Sebastian
I assume that you have modeled outer wall of your flow domain. This case you have model fluid domain where air is flowing. Also outflow boundary was missing. Check attached file.
Best regards
Tero
I assume that you have modeled outer wall of your flow domain. This case you have model fluid domain where air is flowing. Also outflow boundary was missing. Check attached file.
Best regards
Tero
Attachments:
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Posted:
1 decade ago
awesome! thank you, that helps a lot.