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Turbulence Model L.E.S

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Old   June 21, 2009, 06:11
Default Turbulence Model L.E.S
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Hamoudi djamel
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Good Moning Everybody,

Please if every one can answer me, i am doing a simulation in 2D
Can i use L.E.S as a turbulence Model in 2D simulation
because L.E.S turbulence model is very robust

Thank you in advance
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Old   June 21, 2009, 07:52
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Glenn Horrocks
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Hi,

You cannot run LES in 2D. LES requires at least part of the turbulence energy cascade to be modelled and this is an inherently 3D process, even in a 2D geometry. If you want to run in 2D you need a RANS turbulence model.

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