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-   -   skewness in checkMesh (http://www.cfd-online.com/Forums/openfoam-meshing/72281-skewness-checkmesh.html)

fightingfalcon23 February 1, 2010 05:47

skewness in checkMesh
 
Hi,

itīs a short question:

Can somebody explain, what "skewness" mean in checkMesh? I know orthogonality and aspect ratio. But skewness......

Thanks
ff23

gwierink February 2, 2010 03:54

Hi Sebastian,

Skewness is a measure for grid quality; it tells how skewed (i.e. "non-straight") your cells are. There are several ways to calculate it, have a look at this presentation by Andre Bakker for some explanation.

Robat May 14, 2010 07:37

Hi,

Ideally the calculated flux between two cells goes through the center of the intermediate face. But in most cases your cells are not ideal (have nonOrtho and so on), so there is a distance between the linear flux and the face center which is called "skewness". See H.Jasaks PhD for detailed information.

PS: skewness in Fluent is a different thing.

Regards, Robert


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