CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Meshing & Mesh Conversion

[snappyHexMesh] snappyHexMesh Skewness error

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   November 3, 2011, 04:08
Default snappyHexMesh Skewness error
  #1
Member
 
Rob
Join Date: Sep 2011
Posts: 55
Rep Power: 14
robbirobocop is on a distinguished road
Hi everybody,

I'm trying to successfully mesh a complex geometry including some nozzles with snappyHexMesh. Although everything seems to work smoothly and all boundaries out of the .stl files get added, one error always remains that is:

***Max skewness = 5.30808, 5 highly skew faces detected which may impair the quality of the results
<<Writing 5 skew faces to set skewFaces

Although I tried to play around with some parameters in the snappyHexMeshDict, it won't get better. For example increasing the max refinement level from 4 to 5 will even increase the number of highly skew faces from 5 to 7. Using "refineWallLayer" did not help either. So is there any possibility to avoid highly skewed (sur)faces? By the way, the snappyHexMeshDict file is attached.

The .stl file was a 2D Triangular Mesh from Salome, if that info is useful.

Since other posts did not help, any help would be appreciated.
Attached Files
File Type: gz snappyHexMeshDict.tar.gz (3.8 KB, 8 views)
robbirobocop is offline   Reply With Quote

Old   November 25, 2011, 19:45
Default
  #2
Member
 
Martin
Join Date: Nov 2011
Posts: 35
Rep Power: 14
wernsen is on a distinguished road
This Error is not crucial. You can start and run the calculation with this minor problem.

It is also possible to view these skewed faces in paraview via include sets.

Last edited by wernsen; November 25, 2011 at 19:47. Reason: forgott a word
wernsen is offline   Reply With Quote

Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
DPM udf error haghshenasfard FLUENT 0 April 13, 2016 06:35
[OpenFOAM] Native ParaView Reader Bugs tj22 ParaView 270 January 4, 2016 11:39
OpenFOAM without MPI kokizzu OpenFOAM Installation 4 May 26, 2014 09:17
Errors in UDF shashank312 Fluent UDF and Scheme Programming 6 May 30, 2013 20:30
DecomposePar links against liblamso0 with OpenMPI jens_klostermann OpenFOAM Bugs 11 June 28, 2007 17:51


All times are GMT -4. The time now is 10:28.