Questions about createPatch
 

Hi foamers. I am simulating a fan case. The mesh is generated by autogrid5 and the mesh file is .msh type. While the mesh is only one passage of the fan, I use the createPatch to make the periodic face cyclic. The createPatchDict is shown below.


name cyclic-0

Patchinfo
type cyclic
Neighbor patch cyclic-1
Transformation type: rotational
Rotation axis: (0 0 1)
Rotation center: (0 0 0)
Construct from patches
Patch (periodic1)


name cyclic-1

Patchinfo
type cyclic
Neighbor patch cyclic-0
Transformation type: rotational
Rotation axis: (0 0 1)
Rotation center: (0 0 0)
Construct from patches
Patch (periodic2)

I am sure that the periodic patches is matching. But when I used the createPatch utility, I was warned that "face area does not match neighbour by xx% --possible face ordering problem. "
Has someone met this problem?
Thanks for anyone's help.

Hi,

These links should be useful:

1. http://openfoamwiki.net/index.php/CreatePatch (Refer to point 2 that is commented)

2. http://www.cfd-online.com/Forums/ope...port-icem.html

Cheers,
Antimony