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Old   November 6, 2003, 06:18
Default Sliver face
CFX New user
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Hi All,

What is a sliver fase? When i attempt to generate amesh, I am told by CFX5.6 Build that my model has a sliver fase. Can some one kindly explain to me what this is all about??

Thanks CFX New user
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Old   November 6, 2003, 14:19
Default Re: Sliver face
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Sliver face is defined as a face whose ratio of perimeter length to area is greater than the certain value. Default critical value is 25. Surfaces with a high sliver factor can result in a poor quality surface mesh.

The sliver factor associated with a surface is computed, as:

Sliver factor = (perimeter length)^2 / (4Pi * surface area)


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Old   November 7, 2003, 07:42
Default Re: Sliver face
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Hi Jenipher,

Thanks for the good explanation. Now, the surface Build complains about is like a disc with a hole in the middle (washer). I copied it from another one and I am sure my ratio, if calculated properly, should meet that condition. It compalins only about one. Is there a specific problem with such a geometry? Could it be that Build is failing to calculate properly the perimeter, and hence giving it a very high value that results in a critical value above 25? If this is so then how does one address this problem?

kind regards

CFX New user
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