CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

Fine tetrahedral mesh with boundary layer crashes

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   September 17, 2019, 04:08
Default Fine tetrahedral mesh with boundary layer crashes
  #1
New Member
 
Akanksha Rawat
Join Date: Apr 2014
Posts: 29
Rep Power: 12
Akanksha90 is on a distinguished road
Dear Foamers,

I have been using tetrahedral mesh with boundary layers and without as well for the Simulation. Without boundary layers, i do not get problems. With Boundary layers, I tried to mesh the geometry several times and no matter what i did, I still had the problems in my mesh reagarding- non orthogonality above 80, skewed faces etc. Since, it is a tetrahedral mesh, it is not possible to get a perfect mesh.

Therefore, I used the cellLimited leastSquares 1 in my case and found that it brought me stability and the case did not crash for the mesh with 3.5 mill cells. However, In case of 13 Million cells, and similar mesh Quality, with the same FvSchemes and Solutions, the case is crashing.

I am stuck at this Point, unable to think more About what can be wrong here.

Could you guys please give me something from your rich expeiences

Thanks
Akanksha90 is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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
[snappyHexMesh] Creating very fine, high accuracy mesh with snappyHexMesh JD_Welch OpenFOAM Meshing & Mesh Conversion 10 July 5, 2023 11:50
Prismatic boundary layer KateEisenhower enGrid 5 September 15, 2015 07:48
[snappyHexMesh] SnappyHexMesh no layers and no decent mesh for complex geometry pizzaspinate OpenFOAM Meshing & Mesh Conversion 1 February 25, 2015 07:05
An error has occurred in cfx5solve: volo87 CFX 5 June 14, 2013 17:44
fluent add additional zones for the mesh file SSL FLUENT 2 January 26, 2008 11:55


All times are GMT -4. The time now is 15:44.