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DNS in Fluent

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Old   May 31, 2007, 14:00
Default DNS in Fluent
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Neo
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Does Fluent provide DNS just for laminar flow? Beside all turbulent models(such as DES,LES), I can not see any other option for turbulent flow. I would be appreciated if someone answer my question.
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Old   June 5, 2007, 05:47
Default Re: DNS in Fluent
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Thomas
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NO
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Old   June 5, 2007, 11:48
Default Re: DNS in Fluent
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Neo
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Can you please explain more?
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Old   June 6, 2007, 10:32
Default Re: DNS in Fluent
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tom
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when doing dns you solve the laminar flow equations. when your flow is turbulent the grid should be fine enough to resolve all the turbulent scales but the equations are the same. so you should select the "laminar" option in the viscous panel.

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Old   June 7, 2007, 02:13
Default Re: DNS in Fluent
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Neo
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Thanks for the answer. Do I have to deal with "komogolov length scale" in determining how fine the mesh should be?
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Old   June 7, 2007, 06:44
Default Re: DNS in Fluent
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tom
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exactly.
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