[dasith0001]

Hi Foamers,

I am experiencing bit of a strange occurrence of

PHP Code:

Badly formed bounding box 


error!.

I am running a CHT case on OpenFOAM version 12. The domain is a 22.5 deg of wedge section and BCs with symmetry conditions. The mesh is generated on Ansys and converted to foam mesh via fluentMeshToFoam or fluent3DMeshToFoam. ( The error is common to both mesh conversions).

My mesh is also relatively good.

PHP Code:

Checking geometry...
    Overall domain bounding box (0.000872496007073 0.000117537397458 0.1) (0.368900105047 0.181510575685 1.4462)
    Mesh has 3 geometric (non-empty/wedge) directions (1 1 1)
    Mesh has 3 solution (non-empty) directions (1 1 1)
    Max cell openness = 6.41616449837e-15 OK.
    Max aspect ratio = 437.945792086 OK.
    Minimum face area = 8.21350118675e-09. Maximum face area = 0.000360849193815.  Face area magnitudes OK.
    Min volume = 5.98435821164e-12. Max volume = 3.44527899463e-06.  Total volume = 0.0364164568208.  Cell volumes OK.
    Mesh non-orthogonality Max: 88.970975067 average: 24.3193080843
   *Number of severely non-orthogonal (> 70 degrees) faces: 6718.
    Non-orthogonality check OK.
    Face pyramids OK.
    Max skewness = 3.92324883293 OK.
    Coupled point location match (average 0) OK. 


Also, following this link,

https://www.cfd-online.com/Forums/openfoam-bugs/74441-directmappedpatch-badly-formed-bounding-box.html

My geometry do not sit on plane or an axis.

NOW THE STRANGE PART,
1. The error goes away if I add inflation layers.
2.The error is back if I remove the inflation layers.
3.The error is repeatable with varied size of the elements in the mesh.

Your suggestions to resolve the issue is highly appreciated, let me know if you need more information on this.

Thank you
Dasith