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chtMultiRegionSimpleFoam div schemes

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Old   November 14, 2013, 17:21
Default chtMultiRegionSimpleFoam div schemes
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erik gustafsson
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Hello

I have problem with my epsilon in my simulation. I have considerd my boundary conditions and they seems correct. Another suggestion i've found here on the forum is the switch divergence scheme. For all tutorials related to chtMultiRegionSimpleFoam the bounded Gauss upwind is used and when i try to switch scheme openfoam complains about this. Anyone have an suggestion whcih schemes that im allowed to use?
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Old   November 14, 2013, 17:55
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David
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I tell you some thoughts (i have no experience with that solver though):

- What kind of problem do you have whit epsilon? Residuals blowing up?
- If so, look at your case before that happened and look for mesh problems
- Also if you are trying to set an upwind condition you may have to specify the flux variable so try to type upwind phi instead of upwind
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Old   November 14, 2013, 18:30
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erik gustafsson
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Quote:
Originally Posted by GM_XIII View Post
I tell you some thoughts (i have no experience with that solver though):

- What kind of problem do you have whit epsilon? Residuals blowing up?
- If so, look at your case before that happened and look for mesh problems
- Also if you are trying to set an upwind condition you may have to specify the flux variable so try to type upwind phi instead of upwind
Thanks for the reply! Exactly my solution blow up after 500 iterations. Before it seems quite stable with low residuals. I use bounded gauss upwind scheme! IF i excluded "bounded" openfoam complains about unbounded div scheme. Do you have any ideas which schemes i can implement?
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