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wouter May 30, 2009 05:45

bubblecolumn with obstacles
hello All,

I would like to model a bubble column with some internals, but I cannot pass the first obstacle. I cannot create a 2D mesh of a column with an obstacle. I get the errormessage:
Trying to specify a boundary face 4(5 9 25 21) on the face on cell 3 which is either an internal face or already belongs to some other patch.
Can anybody enlighten me. I am new to CFD and Linux.

henrik May 31, 2009 07:57

Dear Wouter,

there is a problem with you mesh. But it seems to be on cell rather block level. Is the error message from blockMesh? If yes, please post the blockMeshDict.

Did you start from an example? Which one? Did it work when you took it out of the box? What did you do to break it?


wouter May 31, 2009 08:59

1 Attachment(s)
Attachment 373

Hello Henrik,
Thanks for taking the time. I tried the bubbleFoam tutorial and wanted to insert a slanted block. ( I changed the meshDict from my first post) I made 9 blocks and the middle block was supposed to be a slanted wall. The bubbles are supposed to swirl round.


wouter June 1, 2009 07:32

found error
In the second block description vertex 23 should have been vertex 22

henrik June 1, 2009 23:30

Thanks for letting us know that you fixed the problem. Henrik

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