CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   OpenFOAM (http://www.cfd-online.com/Forums/openfoam/)
-   -   multiple cyclic fans and outlets irregular ( checkerboard ) pressure on patch faces (http://www.cfd-online.com/Forums/openfoam/94929-multiple-cyclic-fans-outlets-irregular-checkerboard-pressure-patch-faces.html)

ajl42 November 30, 2011 09:05

multiple cyclic fans and outlets irregular ( checkerboard ) pressure on patch faces
 
3 Attachment(s)
Hi Everyone,

I've built a simpleFoam test problem with an inlet, an outlet and two cyclic fans. The simpleFoam solver runs and the residuals fall nicely. The results appear sensible unitl I look at the fan cyclic patches. Here I find an irregular pressure distribution which is more like pressure checker boarding. The velocity field shows similar irregular velocities. I've noticed similar pressure fields at outlets also but these aren't as noticeable. Am I asking too much of the sinmpleFoam solver set up, I'm new to this set up.

Has anyone else found this? Help!

Many thanks,

Andy.:confused:

I've added some pictures of my problem.


All times are GMT -4. The time now is 03:49.