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Outlet Boundary Conditions for LES

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Old   November 26, 2006, 06:29
Default Outlet Boundary Conditions for LES
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I am doing LES of the flow around a bluff body using Fluent 6.2.16. I use velocity inlet BC at the inlet and pressure outlet BC at the outlet.

1. Are these BCs appropriate for LES?

2. I have gone over some of the literatures related to LES and found that Convective Boundary Condition (CBC) is used at the outlet in LES. Do I have to use CBC to get accurate results?

3. How to enable CBC in fluent 6.2.16 if available or incorporate it using User Defined function?

Thanks in adavance

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Old   November 29, 2006, 14:52
Default Re: Outlet Boundary Conditions for LES
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I don't think you need to define CBC oulet. see Luo et al (2004) LES in airway simulation.
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