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-   -   Setting boundary condition BC on axialsymmetric problem (http://www.cfd-online.com/Forums/openfoam-pre-processing/62139-setting-boundary-condition-bc-axialsymmetric-problem.html)

axpl April 10, 2007 03:16

I'm solving a flow in a conica
 
I'm solving a flow in a conical diffuser geometry. What kind of BC I must impose to the axe of symmetry to solve this problem? Is the "empty" BC the right choice?
Thanks,

Alex

cedric_duprat April 10, 2007 09:57

Hi Alexandro, I'm not sure I
 
Hi Alexandro,
I'm not sure I will give you the solution but, the best way according to me is to avoid the problem.
Meshing your geometry otherwise. I plan to mesh the Clausen 1993 conical diffuser and a buterfly mesh seems to be the easyer way (if you have mesh generator).
I saw that with OF someone put a script to mesh a cylinder, try to start from it ...
Hope it helps

Cedric

axpl April 19, 2007 08:28

Thanks Cedric, I'll try a 3D m
 
Thanks Cedric, I'll try a 3D model instead of 2D with axialsymmetric BC.
Alex


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