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Multizone will not form 3D elements

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Old   October 14, 2013, 12:46
Default Multizone will not form 3D elements
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Robert
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Hello everyone,
I have been trying to use the multizone method to get a hex mesh with an inflation layer for an external flow problem.

I am just trying to simulate flow around a horizontal and vertical pipe and their boundary interaction. I want to have an inflation layer around each pipe to better resolve the boundary layer.

When I try and use the multizone method, errors come up stating either:
- multizone mesh failed during meshing of blocks
or
- the 3D fill could not generate any volume elements

I have tried cutcell as well but the inflation layers do not generate.

Any advice on how to handle this issue would be greatly appreciated.
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Old   October 14, 2013, 12:51
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ExternalModel.JPG
This is the model with the highlighted regions as the pipes.
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