CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Skewness & Decomposition

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

LinkBack Thread Tools Display Modes
Old   July 5, 2007, 09:38
Default Skewness & Decomposition
Posts: n/a

Unknowingly, I've been running simulations where a low number of elements in a VERY complicated flow region have very high skewness. Unfortunately, I only realized this well into processing my simulations.

I have since attempted to replace the very tight corners which were causing the skewness. However, this has made it practically impossible to make use of a rectilinear mesh.

Aside from changing the geometry, are there other approaches that can be used to fix skewness?

Thanks in advance.
  Reply With Quote

Old   July 5, 2007, 12:12
Default Re: Skewness & Decomposition
Posts: n/a
If you are using Fluent 6.3, trying making polyhedra from the skewed cells to reduce the skewness. This helps most of the time.
  Reply With Quote

Old   July 5, 2007, 14:54
Default Re: Skewness & Decomposition
Posts: n/a
Not sure I completely understand. Should I redesign the entire face that's a problem? I am unfamiliar with how to manipulate the actual cells (aside from very cumbersome methods) in the way you mention.

Thanks for the help so far.
  Reply With Quote


Thread Tools
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 On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Import netgen mesh to OpenFOAM hsieh Open Source Meshers: Gmsh, Netgen, CGNS, ... 32 September 13, 2011 05:50
TGrid High Skewness khimkhim ANSYS Meshing & Geometry 1 February 18, 2010 00:36
problem with skewness jjchristophe FLUENT 1 January 14, 2010 22:22
Severe nonorthogonality and severe skewness problem qtian OpenFOAM Running, Solving & CFD 2 January 22, 2008 19:47
Skewness Taskin FLUENT 5 April 6, 2005 15:21

All times are GMT -4. The time now is 09:28.