Failed 1 Mesh checks !! ?
 

Hi,
i am doing a wedge type mesh in blockMesh of a couette cell, angle 3°.
i attached the file "blockMeshDict.txt", can anyone check Pleaaase?
note : first you should remove the ".txt" extension.

thanks

I have always this error:

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create polyMesh for time = 0

Time = 0

Mesh stats
points: 242
internal points: 0
faces: 420
internal faces: 180
cells: 100
boundary patches: 6
point zones: 0
face zones: 0
cell zones: 0

Overall number of cells of each type:
hexahedra: 100
prisms: 0
wedges: 0
pyramids: 0
tet wedges: 0
tetrahedra: 0
polyhedra: 0

Checking topology...
Boundary definition OK.
Point usage OK.
Upper triangular ordering OK.
Face vertices OK.
Number of regions: 1 (OK).

Checking patch topology for multiply connected surfaces ...
Patch Faces Points Surface topology
front 10 22 ok (non-closed singly connected)
back 10 22 ok (non-closed singly connected)
in 10 22 ok (non-closed singly connected)
out 10 22 ok (non-closed singly connected)
up 100 121 ok (non-closed singly connected)
down 100 121 ok (non-closed singly connected)

Checking geometry...
Overall domain bounding box (0.0139952 -0.000628247 0) (0.0239918 0.000628247 0.03)
Mesh (non-empty, non-wedge) directions (1 0 1)
Mesh (non-empty) directions (1 1 1)
Wedge front with angle 1.5 degrees
Wedge back with angle 1.5 degrees
***Number of edges not aligned with or perpendicular to non-empty directions: 160
<<Writing 176 points on non-aligned edges to set nonAlignedEdges
Boundary openness (-2.80445e-18 0 -3.89507e-20) OK.
Max cell openness = 1.28405e-16 OK.
Max aspect ratio = 39.3238 OK.
Minumum face area = 7.58871e-08. Maximum face area = 3e-05. Face area magnitudes OK.
Min volume = 2.27661e-09. Max volume = 3.68968e-09. Total volume = 2.98315e-07. Cell volumes OK.
Mesh non-orthogonality Max: 1.35006 average: 0.81938
Non-orthogonality check OK.
Face pyramids OK.
Max skewness = 0.0589183 OK.

Failed 1 mesh checks.

End

Hi.
I've been running in to a similar issue and I'm unsure how to resolve it. Which version of OpenFOAM are you using? When I checkMesh my mesh, I get the error in 1.6 but no error in 1.5. I'm curious if anyone knows why this happens.

Sunny

Hi,
I am using OpenFoam 1.7.1

TIP: When creating a mesh, frontAndBack patches cannot be set up initially as empty ones. That's the reason of this error. Initially set it up to "patch", then you can redefine it in "polyMesh/boundary" file to "empty".

Hope it solves your problem.

Best,
K