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question about fluent post-processing to calculate the cross-sectional area

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Old   July 10, 2020, 21:16
Default question about fluent post-processing to calculate the cross-sectional area
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I wonder why the area isn't the same when I create some iso-surfaces,it should be the same,since I need to calculate the mass flow of these iso-surfaces which is very small,the area of it must try to be consistent,I don't know why

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Old   July 13, 2020, 07:14
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Be honest, 2.399998e-5 and 2.4000056e-5 is quite the same. These narrow differences occur during the meshing process. If is this a problem for you, refine your mesh.
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Old   July 14, 2020, 22:43
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Quote:
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Be honest, 2.399998e-5 and 2.4000056e-5 is quite the same. These narrow differences occur during the meshing process. If is this a problem for you, refine your mesh.
now I also know the area is almost the same,it doesn't affect the result.I think my mesh is good enough using block



but I have another question,Why the grid lines of the two interfaces shown in the following figure are different。

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Old   July 15, 2020, 03:39
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Quote:
Originally Posted by lbj007 View Post
Why the grid lines of the two interfaces shown in the following figure are different
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As the meshing process is a bit random.
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Old   July 16, 2020, 09:13
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Quote:
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As the meshing process is a bit random.
OK,thanks, so it doesn't affect the calculation results, right?
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Old   July 16, 2020, 09:16
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Yes it should not.
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