CFD Online Discussion Forums - [snappyHexMesh] Snapping issues with angled cylinder

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Snapping issues with angled cylinder

I have an 30 degree angled cylinder in-between two plates that I am having issue with snapping to the STL file. The STL file has a nice triangular surface generated with gmsh.

At the lower resolution mesh (larger cells) I get ok snapping.

https://www.cfd-online.com/Forums/at...1&d=1704480455

But if I refine the mesh, some cells snap well, but the majority of them don't seem to snap at all.

https://www.cfd-online.com/Forums/at...1&d=1704480455

Here are my snapping parameters. Any ideas?

Code:

snapControls

{

    nSmoothPatch 1;

    //nSmoothInternal $nSmoothPatch;

    tolerance 1.0;

    nSolveIter 500;

    nRelaxIter 100;

    nFeatureSnapIter 30;

    implicitFeatureSnap false;

    explicitFeatureSnap true;

    multiRegionFeatureSnap false;

}

I figured it out. I was running into the minVol limit in the meshQualityDict.cfg. Lowering this to

Code:

minVol 1e-18;

did the trick