CFD Online Discussion Forums - [snappyHexMesh] Explicit feature edge ref&snap in OF2.2

Hello Foamers,

I struggle with the new feature edge handling in OF2.2.x. I hope someone can help me there!

What I want to do here is to refine the feature edges through the "old" explicit method: I give an eMesh file in the "features" section with a given refinement level. Then, I want the mesh to snap on the same feature edges. Here are some parts of what I have in snappyHexMeshDict to attempt achieving it:

Code:

castellatedMeshControls

{ [...]

    features

    ( { file "Column_F.eMesh"; level 4; } );



    refinementSurfaces

    { Column

        { level (3 4); } 

    }

    resolveFeatureAngle 30;     

    [...]

}



snapControls

{

    nSmoothPatch 3;

    tolerance 1.0;

    nSolveIter 300;

    nRelaxIter 5;



    // Feature snapping

        nFeatureSnapIter 10;

        implicitFeatureSnap false;

        explicitFeatureSnap true;

        multiRegionFeatureSnap false;

}

As you can see from the attached image (the feature edges from the eMesh are highlighted in white):
1) The mesh is only partially refined at level 4 along the feature edges.
2) The mesh didn't snap along the feature edges.

As I have several eMesh to insert with different refinement levels, I don't want to use the implicit feature edge handling. Can anyone give me some advices?

Regards,
Eloïse