Construct2D mesh in OpenFoam
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Hello,
I am having problems trying to use the Construct2D C-mesh in OpenFoam. I have already read all the threads about this topic but I am still having problems. This is the procedure I follow: - C-mesh generation with Construct2D - Conversion to .msh format using p3d2gmsh - I use GmshToFoam to convert the .msh mesh in OpenFoam format In this way in the file polyMesh/boundary there will be the following boundaries: - b8-SYMMETRY-Y --> FRONT - b9-SYMMETRY-Y --> BACK - b6-FARFIELD --> OUTLET - b7-FARFIELD --> OUTLET - b5-FARFIELD --> INLET - b4-VISCOUS --> AIRFOIL - B2-to-stitch-a --> WAKE - defaultFaces --> WAKE defaultFaces and B2-to-stitch-a are exactly the same thing (WAKE) as I am able to see from Paraview. The boundary "WAKE" is a boundary that connect the airfoil trailing edge with the outlet. Obviously, it is an undesired boundary: air should just flow freely and without constraints there. To remove this boundary I use the following command: "stitchMesh -overwrite WAKE defaultFaces". After that, in the polyMesh/boundary file, B2-to-stitch-a and defaultFaces has zero faces. Thus, I just remove them and run my simulation. However, in that exact point, something very strange happens in the velocity field. I am attaching a picture. Does anyone knows how to fix this? Thanks to everyone who have had the patience to read this post. |
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