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-   -   cyclic boundaries (http://www.cfd-online.com/Forums/cd-adapco/56097-cyclic-boundaries.html)

gosia stein May 30, 2007 10:04

cyclic boundaries
 
hi i've been trying to set the CYCLIC BOUNDARIES for the 30*-piece of a burner but the only thing i've been receiving is the message that CYCLIC BOUNDARIES ARE NOT MATCHED; i'd be grateful for any hints thx in advance

Mac May 30, 2007 23:31

Re: cyclic boundaries
 
Hi check if the sector you have considered is correct. Also check if the cyclic boundaries are planar.

gosia stein June 2, 2007 09:22

Re: cyclic boundaries
 
hi, thx a lot; could u give me a hint where to check if they are planar?? i can't find such option; i'm following the algorithm from tutorial 9.1; problem appears whenever i'm trying to choose plane at -Y; output indicates than around 10000 cells more than at +Y although the walls are absolutely identic and each of them is composed of 20664 cells;

Anton Lyaskin June 4, 2007 03:51

Re: cyclic boundaries
 
Try to play with matching tolerance (0.01 sometimes helps). Also check that you list the regions in the proper order, i.e. try to set distance to -30 degrees instead of 30.

cfddummy June 9, 2007 21:59

Re: cyclic boundaries
 
hi may be you can try to delete all the cyclic boundaries and redefine them again? I think you might have mistakenly defined the cyclic boundaries a few times without noticing it.

gosia stein June 13, 2007 07:39

Re: cyclic boundaries
 
thx a lot everybody; the problem was in the lack of minus in front of the number for DY in cyclic set match (i'm working on the version 3.15A)


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