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[swak4Foam] is it possible to apply more than one cell in zeroGradient or groovyBC internalField? |
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February 8, 2013, 15:37
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is it possible to apply more than one cell in zeroGradient or groovyBC internalField?
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#1 |
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Senior Member
Ehsan
Join Date: Oct 2012
Location: Iran
Posts: 2,208
Rep Power: 26  |
at my run the cells that are neighbours to outlet boundary show a high value for pressure and velocity that is unrealistic.I guess it can be from one cell getting in zeroGradient and also first order interpolation in internalField utility.
can a second order interpolation be used?how or any hint is appreciated. thanks. |
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February 8, 2013, 17:15
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#2 | |
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Assistant Moderator
Bernhard Gschaider
Join Date: Mar 2009
Posts: 4,225
Rep Power: 51 |
Quote:
What is usually the problem in such cases is using a plain zeroGradient condition and having backflow at the outlet. Either extend the outlet to eliminate backflow or use the inletOutlet-condition (or something similar) to have a Dirichlet-conditon for faces where flow comes back in
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