[waku2005]

Dear all,

I'd like to run a flow simulation around a very simple obstacle in a duct (2D), like an attached figure.
I wrote blockMeshDict and had a error when I run blockMesh command with the attached simple blockMeshDict (on OF 2.3.x) .
What's wrong in this blockMeshDict?

Thanks in advance
waku2005

error:

--> FOAM FATAL ERROR:
Trying to specify a boundary face 4(17 18 6 5) on the face on cell 1 which is either an internal face or already belongs to some other patch. This is face 0 of patch 2 named wing.

From function polyMesh::setTopology
(
const cellShapeList& cellsAsShapes,
const faceListList& boundaryFaces,
const wordList& boundaryPatchNames,
labelList& patchSizes,
labelList& patchStarts,
label& defaultPatchStart,
label& nFaces,
cellList& cells
)
in file meshes/polyMesh/polyMeshFromShapeMesh.C at line 360.

FOAM aborting

[jokerito]

Hello,

your error code says, that you are defining an internal face, so your Wing is completly in your blockMesh. If you don't want that, you have to adapt your hex blocks or if you don't need initial conditions for the wing, just uncomment your two faces in the wing boundary.

Kind regards,
Mike