[snappyHexMesh] Layer discontinuity issue

InternCFDMallorca · June 10, 2024, 09:33

Hello everyone, does someone know how to avoid a layer discontinuity as illustrated in the picture bellow ? Which parameter should I use in snappyHexMesh to fix this issue ?

Thank you for you answers !

AtoHM · June 11, 2024, 07:34

Layer generation is the weak spot of snappyHexMesh. There have been many of discussions here on the forum you can look through to find hints.

I can recommend looking at the alternative mesh shrinker:

High skewness

You will find many more topics discussing layer generation, have a look there too.

InternCFDMallorca · July 2, 2024, 03:49

Thank you for your answer, I solve my problem by using cfMesh instead of snappyHexMesh. The layer generation is way better and simple with cfMesh. You can see the results in the pictures attached.

For those who would like documentation about cfMesh here is the user guide : https://cfmesh.com/wp-content/upload...fMesh_v1.1.pdf

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[snappyHexMesh] Layer addition inside small holes + outside	Snacker	OpenFOAM Meshing & Mesh Conversion	1	March 28, 2024 05:21
SHM layer problem on inside mesh	boffin5	OpenFOAM Running, Solving & CFD	1	November 20, 2021 06:26
[snappyHexMesh] Help with Snappy: no layers growing	GianF	OpenFOAM Meshing & Mesh Conversion	2	September 23, 2020 08:26
[snappyHexMesh] Adding layer 3d wing (y+=1)	Dorian1504	OpenFOAM Meshing & Mesh Conversion	4	November 10, 2017 00:56
[snappyHexMesh] sHM layer process keeps getting killed	MBttR	OpenFOAM Meshing & Mesh Conversion	4	August 15, 2016 03:21

June 11, 2024, 07:34		#2
AtoHM Senior Member M Join Date: Dec 2017 Posts: 692 Rep Power: 12	Layer generation is the weak spot of snappyHexMesh. There have been many of discussions here on the forum you can look through to find hints. I can recommend looking at the alternative mesh shrinker: High skewness You will find many more topics discussing layer generation, have a look there too.