|February 8, 2013, 16:37||
is it possible to apply more than one cell in zeroGradient or groovyBC internalField?
Join Date: Oct 2012
Posts: 2,205Rep Power: 18
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.
|February 8, 2013, 18:15||
Join Date: Mar 2009
Posts: 3,915Rep Power: 40
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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