snappyHexMesh type castellatedBufferLayer always creates buffer layer on face zone type baffle

Summary

Modified 2025-01-17 to reflect current issue If the SnappyHexMesh contains an object for which face zone of type baffle is specified, then buffer layer is always created on the baffle, regardless of addBufferLayers setting.

Steps to reproduce

See example below

Example case

This example contains walls patch, and plane patch, for which face zone is specified. Run blockMesh, surfaceFeatureExtract and snappyHexMesh to reproduce

bugcase2.zip

What is the current bug behaviour?

Buffer layer is created

What is the expected correct behavior?

Buffer layers added to specified patches only, and face zone is created.

Environment information

• OpenFOAM version : v2412, installed from prebuilt deb packages
• Operating system : ubuntu
• Hardware info : x64
• Compiler : gcc

mentioned in issue #3300 (closed)

added community label

I used Build: 4fe3f55e-20250110 OPENFOAM=2412 version=v2412 which contains the fix for #3297 (closed).

It seems that this fix helps with the reported crashing issue, but the buffer layer behavior is wrong: Regardless of the value of addBufferLayers for the patch plane in the example case, buffer layer is added to it. So maybe there is some issue with baffle type face zone?

Should I reformulate the bug report? Update: Did so.

changed title from snappyHexMesh type castellatedBufferLayer crashes with face zone type baffle to snappyHexMesh type castellatedBufferLayer always creates buffer layer on face zone type baffle

changed the description

mentioned in issue #3304