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Blockmesh bug ? Strange bifurcation

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Old   June 20, 2010, 04:07
Unhappy Blockmesh bug ? Strange bifurcation
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Hello Foamers ,

I am doing a DNS on a heated channel flow using our in-house code.I was interested in doing the same problem in OpenFOAM. the mesh was generated using blockmesh . I fired up paraview and i cut a slice ( I gave some laminar profile using calculator filter ) and had a look using plotdata filter of some scalar against wall normal coordinates (U vs CoordY) It seems there is a strange mismatch between the patches at the center. I am attaching a screenshot of plot of the mesh generated using our inhouse code and using blockmesh . I am attaching my blockMeshDict as well .

Can anybody explain it ? Is it normal ? what can i do to remove it ?

Thanks in advance

Attached Images
File Type: jpg correct.jpg (40.9 KB, 12 views)
File Type: jpg openfoam.jpg (68.2 KB, 13 views)
Attached Files
File Type: gz blockMeshDict.gz (565 Bytes, 3 views)
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blockmesh, channel, cyclic, dns, interface

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