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Marc July 5, 2007 09:38

Skewness & Decomposition

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.

SV July 5, 2007 12:12

Re: Skewness & Decomposition
If you are using Fluent 6.3, trying making polyhedra from the skewed cells to reduce the skewness. This helps most of the time.

Marc July 5, 2007 14:54

Re: Skewness & Decomposition
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.

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