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non-positive surface area

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Old   July 3, 2005, 23:57
Default non-positive surface area
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Hai guys!

While meshing in gambit, there is no grid problem as I checked in face mesh-check. But in fluent, while grid checking, it failed due to non-positive area, Even after refining the grid.

Please help me to eradicate the problem.
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Old   July 4, 2005, 01:06
Default Re: non-positive surface area
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i)Are you using axissymmetric.If so the axis has to be parrel to X axis and all grid should be positive X axis. ii)Check the skewness of grid in gambit.If this is more than 0.9 better remesh this.

good luck
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Old   July 4, 2005, 02:40
Default Re: non-positive surface area
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Thanks Balaji,

But I am not axisymmetric. As well, my max skew is 0.8493.

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Old   July 19, 2005, 09:52
Default Re: non-positive surface area
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then what is your problem define it corectly
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