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Les turbulence model in steady mode

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Old   April 17, 2016, 16:42
Default Les turbulence model in steady mode
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shahrbanoo
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Hi Dears

Is there any way to run a steady case with large eddy simulation turbulence model, ? Or better to ask is it possible?

Best regards...
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Old   April 18, 2016, 03:39
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Cees Haringa
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Hi,

LES is inherently transient - you cannot run this in steady state.

Good luck!
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Old   April 18, 2016, 11:00
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Quote:
Originally Posted by shahrbanoo View Post
Hi Dears

Is there any way to run a steady case with large eddy simulation turbulence model, ? Or better to ask is it possible?

Best regards...
It's possible and it exists and there are numerous implementations of it but I don't think you will find anyone that will still consider that LES: it's called a laminar model.

LES is inherently a time-accurate simulation by definition. If you arbitrarily run it in steady mode, you will end up with a laminar flow because the fluctuations about the mean must average to the mean.
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