[kanuk]

Hello,

I'm trying to run a test case of a 2-D airfoil (similar to the airFoil2D tutorial case). I am using gmsh as a meshing tool and followed the directions in http://openfoamwiki.net/index.php/2D...ial_using_GMSH.

Originally, I had been using an unstructured mesh (tets) and got good visual results, but I am trying to validate the case, so I have now meshed with a structured grid using a couple of boundary layers (primary and secondary). The problem is that once I specify all faces and volumes in the .geo file, mesh it (with no problems), convert it using gmshToFoam, I get very, very unstable behavior in my solution, even though my grid is refined. I have checked my 0/U, 0/p, 0/nut, 0/nuTilda, polyMesh/boundary and system/controlDict files, and nothing seems to be wrong. I think the problem is with my "interfaces" patch in the .msh file... I don't know for sure but I specified the boundary layers (which are labeled interfaces in gmsh) as "empty" in the above files, which seems correct to me.

Also, when running gmshToFoam I get the following error (see below). Why am I getting a faceZone_1??

////////////////////
Skipping tag at line 144939
Patch 0 gets name back
Patch 1 gets name interfaces
Patch 2 gets name airfoil
Patch 3 gets name front
Patch 4 gets name inlet
Patch 5 gets name outlet

--> FOAM Warning :
From function polyMesh:olyMesh(... construct from shapes...)
in file meshes/polyMesh/polyMeshFromShapeMesh.C at line 576
Found 57744 undefined faces in mesh; adding to default patch.
Finding faces of patch 0
Finding faces of patch 1
Finding faces of patch 2
Finding faces of patch 3
Finding faces of patch 4
Finding faces of patch 5

FaceZones:
Zone Size
1 879

Writing zone 0 to cellZone airvol and cellSet
Writing zone 1 to faceZone faceZone_1 and faceSet
End

///////////////////

As of this point, I am stumped, but will keep trying to find the solution. Anyone out there successfully ran a case with boundary layers?? Any help is really appreciated!