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Quick question to verify (since I can't find it explicitly in the Fluent Docu)

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Old   June 9, 2010, 17:07
Default Quick question to verify (since I can't find it explicitly in the Fluent Docu)
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Oscar
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Very quickly, I was just curious. Is Fluent is appropriate for all Knudsen Number regimes?

The rarefaction of flow based on Knudsen number can be divided into 4 categories.
Flow regime Knudsen number range
Continuum Regime < 0.001
Slip flow 0.001 - 0.1
Transition flow 0.1 - 10
Free Molecular > 10
I know Continuum is covered in Fluent, but is there a source that specifies any limitations on the others? Maybe limitations near walls like it seems CFX has issues with? Any info would be appreciated!

Oscar
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Old   June 10, 2010, 15:36
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any help on this would be appreciated.
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Old   June 13, 2010, 19:07
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looks like Fluent is good down to sub-micron
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